METREL GmbH is a provider of products and services such as calibration services, electrical,calibration services, electromechanical,calibration services, electronic,calibration services, dynamic,calibration services, force, impact and torque,calibration services, flow,calibration services, pressure,calibration services, rf and microwave,calibration services, optical,calibration services, radiometry and photometry,calibration services, acoustic instruments,calibration services, temperature and humidity,calibration services, fibre optics,calibration services to national standards,calibration services for weights,calibration services, accelerometer,calibration services for electrostatic instruments,calibration services, resistor,calibration services, meteorological instruments,calibration services, audiometric equipment,calibration services, tank or vessel,calibration services for scales or balances,calibration services, taximeters,calibration services for gases,laser calibration services, machine tools,vehicle tachograph installation and calibration centres,calibration consultants,testing services for hygrometers, densimeters, alcoholometers,actuators for window opening and closing mechanisms,diode probes,oscilloscope probes,probes, hall effect,encoders, linear,encoders, absolute,encoders, incremental,encoders, hybrid,encoders, rotary,encoders, explosion proof,road traffic data gathering systems, electronic,liquid crystal display (lcd) modules,liquid crystal display (lcd) modules, chip on glass (cog),power sources, ac,generators, arc and spark, electric,signal generators,wobbulators,vibration generators, electrical,temperature generators for hybrid components testing,generators, tachometric,time-code generators and readers,time marker generators, electronic,function generators for electro-acoustics,generators, noise,radar and television signal generators,impedance transformers,thermopiles,liquid level switches, ultrasonic,remote control systems for vehicle steering,actuators, electric,actuators, electromechanical,actuators, electro-hydraulic,actuators, electro-pneumatic,actuators, pneumatic,actuators, hydraulic,actuators, solenoid,actuators, thin magnet,actuators, rotary,actuators, linear,actuators, piezoelectric,actuators, spring return,actuators, double acting,actuators, ballscrew,actuators, explosion proof,valve actuators and positioners,gears, gearboxes and clutches for precision measuring instruments,air pollution control laboratories, mobile,scanners for galvanometers,vibration pick-ups,vibrometers and vibrographs,vibration meters and analysers, electronic,tuning forks, electrical,analysers, tachograph chart,wave analysers, electronic,analysers, radiation counter,spectrometers, nuclear engineering,spectrometers, atomic absorption,detectors, phase sensitive,detectors, live conductor,detectors, phase failure,nuclear particle detectors, semiconductor type,pipeline leak detectors, electrical and electronic,water leak detection and shut-off systems, electronic,radioactivity detectors and alarms,gas or oxygen depletion sensors,sensors for liquid concentration monitoring,sensors for accelerometers,sensors and measuring equipment for biomedical applications,sensors, speed,electricity meters,electrical test equipment, street illumination,electrical test or calibration equipment, tuning fork based,electrical test equipment, production line, automatic, for electrical components,electrical test equipment, tuning fork, phonic motor clock,wear indicators, electronic, for mechanical parts,testing equipment, pressure of portable fire extinguishers,temperature and humidity measuring and control equipment, grain storage,nuclear reactor power error meters,indicators, moving coil,phase sequence indicators,standing wave indicators,torsion indicators, electrical,indicators, digital, panel mounting,indicators/detectors, null (zero),indicators, digital,indicators, remote,indicators, general purpose,production indicators, remote,transit shock indicators and recorders,conductivity indicators, fluid,level indicators or controllers for solids, bin level,flow meter test benches,test equipment, mechanical, food industry laboratory,sensors, room air quality,control equipment, firework display,control systems, light management,inspection systems, automatic, optical, for liquid crystal displays (lcds, flat panel displays),inspection systems, visual, process control,print inspection systems,remote control equipment, mechanical,control systems for actuators,active sound/vibration control systems for aircraft,pollution control systems and equipment for oil spillages at sea,flow control systems for seal cooling and lubricating water,temperature monitoring systems for machinery,temperature and humidity monitoring and logging systems,temperature monitoring systems for kilns,temperature monitoring systems for paint curing,temperature monitoring systems for gas and diesel engines,temperature monitoring systems for refrigerated vehicles,temperature monitoring and alarm systems for food,temperature monitoring instruments, infrared,liquid level indicators, electronic,liquid level indicators, gamma-ray,liquid level indicators, ultrasonic,liquid level indicators, infrared,liquid level indicators, capacitance type,liquid level indicators, diaphragm type,liquid level indicators, fixed electrode type,liquid level indicators, float type,liquid level indicators, weighing type, load cell system,liquid level indicators, displacer system,liquid level indicators, pneumatic purge type,liquid level indicators, dial type,liquid level indicators and measuring equipment, remote,liquid level indicators, recording,liquid level indicators, tubular glass or plastic,level indicators for water,level indicators for fuel and oil,level indicators for liquid ammonia,level indicators for sludge,liquid level indicators for closed vessels and storage tanks,liquid level indicators for open vessels and reservoirs,liquid level indicators for pressure vessels and boiler drums,calibration equipment, sonar (asdic) systems,audiometer calibrators,calibrators, voltage and current,frequency calibrators, crystal,calibration and testing equipment for temperature sensors and thermocouples,gauging equipment, electronic,dosemeters, nuclear,automatic sorters for dimensional checking,pump monitors,chemical dosing and control equipment for swimming pool water,ionisation and corona measuring equipment for insulation testing,quality control inspection equipment, electronic,quality control machinery and equipment, optoelectronic,production and industrial process control equipment, electrical and electronic,coordinate inspection machines, 2 and 3 axis, optoelectronic,fieldbuses for analyses and tests,analysing equipment, side-band,white noise generating and test equipment,pressure testing equipment,soil ph testing equipment,test equipment for temperature measuring instruments,thermal conductivity testing equipment,electrical test equipment, computers and data processing equipment,electrical test equipment, data transmission,test equipment, computer networks,burn-in test equipment for electronic components and assemblies,high voltage-low frequency (hv-lf) generating test equipment,test equipment, extra high voltage (ehv), electrical,testing equipment for electronic assemblies and sub-assemblies,testing equipment, automatic, for electronic assemblies,cable form testing instruments, electronic,test equipment for resistance thermometers,quality and reliability test equipment for electronic components and systems,power supply test equipment, automatic,test equipment for jitter control,testing apparatus for piezoelectric equipment,testing equipment for light emitting diodes (led),multi-frequency signalling test and control equipment,test probes, voltage indicator leads, fused test leads,testing and measuring equipment for radio, high fidelity (hi-fi) and television systems,probes, spring contact, for testing electronic assembly components,test equipment, electrical and electronic, for compact disc production lines,magnetic tape test equipment,flow meter test equipment,monitoring systems, pressure,telemetry systems for environment monitoring,power line disturbance monitoring equipment,monitoring equipment, gamma ray, for the packaging industry,water quality monitoring instruments, electric and electronic,monitoring systems, electrical or electronic for the packaging industry,monitoring units, continuous, for ultraviolet (uv) lamps,vapour monitoring systems,monitoring and control systems, centralised, for oil and gas production fields, pipelines and distribution networks,power monitoring systems, digital,fuel dispensing and monitoring systems, electrical or electronic,pulse monitoring, recording and analysis equipment for nuclear engineering,local area network (lan) test systems,analysers, network,phase fault monitors,analysers, mains sequential harmonic,voltage conditioners, ac, power line,analysers, transfer function,underground cable locators,frequency synthesizers,standing wave ratio measuring instruments,spectrum generators, random,impedance meters,fault indication equipment, electric circuit, portable,fault location equipment for underground electric cables,transmitter monitors,transmitter output meters,test equipment for electromagnetic susceptibility,acoustic shock suppressors,edge detection systems, video based,tension control systems, electronic, web handling, winding and unwinding,levels, engineers', precision, electronic,modulators, electrical measurement, choppers,mains failure alarm units,low voltage (lv) supply warning alarms,shunt reactors, extra high voltage (ehv) transmission,electromagnetic interference (emi) shielding performance measurement instrumentation,fieldbus systems for production automation,colour sorting equipment, electronic,colour recognition systems, photo-electronic,galvanometers, tangent,gauges, pressure, indicating and recording,gauges, pressure, precision,gauges, pressure, electric and electronic,gauges, pressure, illuminated, alarm,gauges, pressure gauge calibrating,manometers, inclined,manometers, single column,manometers, u-tube, two column and two liquid types,manometers, multi-tube,manometers, portable,micro-manometers,gauges, absolute pressure,gauges, positive pressure,gauges, differential pressure,pressure gauge tubes,pressure gauge calibration benches,gauges, ionisation/vacuum ionisation,gauges, compound, pressure and vacuum,pressure gauges, oil well,pressure gauges, precision, for laboratories and the chemical industry,gauge pressure and vacuum alarms,pressure gauge protection devices,pressure gauges for bottled gases,pressure gauges for refrigerating fluids,pressure gauges for polymers,number wheels and pinions for mechanical counters, meters,dosimeter holders,micrometer heads,scales, graduated, for precision measuring instruments,diaphragms, corrugated metal, for precision measuring instruments,cases, protective, for precision measuring instruments,sheaths or tubes, protective, for precision measuring instruments,photometer benches,optical benches,instrument dashpots,proving rings (ring dynamometers),electrodes, ph,bellows for precision measuring instruments,springs for precision measuring instruments,spindles and pivots for precision instruments,counters for fluidimeters,supports, articulated, for measuring instruments,timing belts for precision measuring instruments,tachometers, mechanical,tachometers, hand,tachometers, portable,tachometers, remote indicating,tachometers, generator type,tachometers, magnetic drag type,tachometers, recording (tachographs),probes, tachometer,counters, revolution,odometers,pedometers,rate meters, nucleonic,galvanometers, moving magnet,galvanometers, pointer,galvanometers, vibration,galvanometers, tape or wire,electrical measuring instruments, electrostatic,electrical measuring instruments, hot wire,electrical measuring instruments, moving coil,electrical measuring instruments, moving iron,electrical measuring instruments, panel mounting,electrical measuring instruments, maximum demand,contact meters, alarm actuating meters,electroscopes,derived circuit multipliers,attenuators, pad type,ultraviolet (uv) meters,intermodulation meters,delay lines for acoustic surface waves,impulse compression systems,mains filters for electronic equipment,phase comparators, electronic, oscilloscopic,filters, quartz crystal and piezoelectric ceramic,filters, acoustic surface wave,surface acoustic wave pulse compression units,suppressor filters, electric interference,comparators, interference,analysers, zeta potential,wavemeters, electronic,valve voltmeters,carrier deviation meters,circuit magnification meters, q-meters/quality factor meters,oscilloscope trace doublers,oscilloscopes,radio interference measuring equipment,sound analysers,noise dosemeters,reverberation time meters,decibel meters,sound level measuring equipment (phonometers),harmonic generators and analysers, electronic,psophometers,water meters,flow meters, steam,flow meters, gas and air,flow meters for cold fluids,flow meters for liquefied gas,flow meters for hot fluids,flow meters for oils and viscous liquids,flow meters for corrosive fluids,flow meters for water,flow meters for liquid fuels,flow meters for powders and bulk solids,flow dividers for liquids,flow control systems, high purity gas,flow meters, cryogenic,flow meters, mass flow,flow meters, microflow, for leaks,flow meters, river measurement,flow meters, effluent,flow meters for small flow rates,flow meters for high temperatures,flow meters for high pressures,flow meters for compressed air,flow meters, food and beverage industry,hydrometers,smart gas meters,water velocity meters,gas meters,rheometers,pycnometers,meters for gas production plant,meters, volumetric, for petroleum and petrochemical products,compressed air meters,anemometers, hot wire,manostats,gauges, draught,multimeters, analog or digital,distortion factor meters,flickermeters,sound pressure measuring equipment,nepermeters,inductance meters,power factor meters,taximeters,meters, vehicle and machine working hours,stroboscopes, mechanical,ebullioscopes/ebulliometers,wavemeters, absorption,wavemeters, portable,synchronisers (synchroscopes),load cells,radiation counters,ionometers (gas ionisation meters),panel meters,pressure standards, dead-weight,frequency meters,measuring instruments, heat flow,gas metering correction equipment, temperature, pressure and compression,surface tension determination apparatus,measuring equipment, solution conductivity, electric or electronic,gel elasticity measuring instruments, pulse shearometers,dose rate meters,faraday pails for electrostatic charge measurement,measuring equipment, electrical, multi-purpose,measuring systems, video,measuring systems, non-contact, acoustic radar,measuring instruments and systems, electronic, non-contact,thickness measuring equipment, electrical or electronic,porosity meters, electric or electronic,ganged capacitor measuring equipment,laboratory measuring equipment, electrical,acidimeters, dairy industry,sensors, relative humidity,water activity meters, food industry,thermodensimeters, brewery,capsules, water in fuel detection,conductivity recorders, fluid,fluidimeters,rheological equipment,chambers, ionisation,radiation integrators,fluorometers, nuclear engineering applications,radionuclides for nuclear engineering, thickness measurement,amplitude selector-decoders, nuclear engineering,counting chains, nuclear engineering,amplifiers, nuclear engineering,coincidence and anti-coincidence selectors, nuclear engineering,electron probe microanalysers, nuclear engineering,viscometers, high viscosity, for gums, resins, asphalt, pitch and plastics,viscometers, low viscosity, for kerosene and light oils,viscometers, medium viscosity, for fuel oils, paints, printing inks, varnishes, greases and fats,viscometers for non-newtonian fluids,viscometers for thixotropic and rheopexic fluids,viscometers, automatic,viscometers, electronic,viscometers, falling sphere,viscometers, capillary,viscometers, cone and plate,viscometers, recording,viscometers, absolute,viscometers, rotational,viscometers, friction tube,viscometers, torsion,viscometers, vibrational,viscometers, yield point,viscometers, laboratory,viscometers, industrial,viscometers, calibrated and certificated,meters, communal heating, prepayment card,thermometers, oven,thermographs,thermal radiation measuring instruments, contact free,thermocouples,thermocouples, peltier, electric,gauges, temperature,sensors, temperature,temperature indicators, multipoint,pyrometric cones and temperature indicating paper strips,thermal diffusion meters,analysers, microanalysers, differential heat,heat cost allocators, remote reading,heat cost allocators, evaporation type,heat cost allocators, liquid flow type,heat cost allocators, electronic,thermal imaging systems,actuators, thermal,thermistor sensor housings and assemblies,cloud point determination apparatus,thermometers, portable,thermometers, cryoscopic (cryometers),thermometers, calibrated and certificated,thermometers, calibrating,thermometers, remote indicating,thermometers, indicating and recording,thermometers, gas expansion,thermometers, intrinsically safe,thermometers, dial type,thermometers, precision,thermometers, maximum-minimum,thermometers, galilean,thermometers, domestic,thermometers, industrial,thermometers, veterinary,thermometers, medical, ear-type,thermometers, medical,thermometers, self-adhesive,thermometers, extended scale (beckmann thermometers),calorimetric apparatus and accessories,calorimeters, laboratory,calorimeters, indicating, regulating and recording,hydrometers for metal,hydrometers for rubber, latex,hydrometers for tar,hydrometers for acids,hydrometers for boiler water, salinometers,hydrometers for saltwater (brinometers),hydrometers for sugar (brix hydrometers, saccharometers),hydrometers for milk (lactometers),hydrometers for glue,hydrometers for alcohol (sikes hydrometers),hydrometers for the petroleum industry,hydrometers, ship draught survey,fluxmeters, gaussmeters,magnetometers,coercimeters,electromagnetic interference and field measuring instruments,magnetic field strength measuring equipment, field intensity meters,magnetic field analysers,measuring instruments, magnetic current,electromagnetic compatibility and electromagnetic interference (emc-emi) measuring devices,underwater pipeline location equipment, magnetic,components and accessories, thermocouple,components and accessories, strain gauge,components and accessories, thermometer,components and accessories, spectrophotometer,components and accessories, spectrometer and mass spectrometer,components and accessories for ph measuring equipment and instruments,components and accessories for humidity measuring instruments,optical bench accessories,refractometer accessories,spectroscope accessories,spectrograph accessories,viscometer accessories,components and accessories for comparators,components and accessories for gauges,components and accessories for flow meters,components and accessories for galvanometers,components for level gauges,components and accessories for photoelectric control equipment,display units, electrical and electromechanical,counters, electronic, ultra-high speed, nuclear engineering,counters, programmable, nuclear engineering,radiation counters, boron trifluoride, proportional counters,radiation counters, comprehensive,radiation counters, fast neutron,radiation counters, gas analysis,radiation counters, liquid flow type,radiation counters, low background,pulse demultipliers and counters, nuclear industry,counters, electronic, people counting,cut-off counters, electro-acoustics,summators, analog, digital,photon counters,counters, electronic, for fish farms,counters, electronic, batching,decade counters/scalers,electric power optimisation calculators,colony counters, electronic (spores, insects),counting machines, electronic, for watch jewels,oscillographs,counters, mechanical,counters, pneumatic,counters, electromechanical,counters, electromagnetic,counters, printout,counters, pre-set quantity,counters, reset,counters, stroke,counters, adding,counters, adding and subtracting,counters, hand-tally,counters, batching,counters, ticket printing,counters, checkout, electromechanical,counters, footage,counters, shock and vibration,counters, textile machinery,counters for tape recorders,numbering machines and heads,prospection scintillometers,scintillators, plastic and organic,scintillators, glass,scintillators,scintillometers/scintillation detectors/scintillation counters,scintillation analysers,scintillation spectrometers,scintillation crystals,process control systems for metal forming machines,machine vision systems,process control systems for the metallurgical industry,flame failure controls and alarms,remote control systems for valves,production and productivity recorders,fault detection and control equipment, automatic, for presses,electrostatic painting plant instrumentation,gas pressure adjusting systems, gas production plant,flow control systems, air to fuel ratio,flow control systems, open channel,flow control systems for cutting oil,flow controllers, steel shot or grit,flow controllers for petroleum,flow maintaining devices, hopper content,flow indicators, fire hose,flow recorders for petroleum refineries,filter blockage indicators, oil pipeline,level regulators for petroleum,pressure reducers and regulators for precision instruments,regulators, humidity,regulators, magnetic field,regulators, boiler,viscosity controllers, continuous,regulators, lighting,regulators for electric generator sets,gas ignition frequency controllers, energy saving,conductivity controllers, fluid,level controllers, automatic, for pastes,level controllers, microwave, for solids,control units, refrigeration and air conditioning,control systems, computerised, horticultural growing environment,speed regulators, industrial,pressure governors for compressors,air flow regulators,feed water regulators, automatic,gas flow regulators,oxygen regulators for oxygen therapy equipment,energy regulators, thermostatic,temperature regulators for petroleum,temperature regulators for engines,temperature regulators for combined heaters and ventilators,temperature regulators for furnaces and burners,temperature regulators for food industry equipment,temperature controllers, cryogenic,temperature controllers, galvanometer type,temperature controllers, electromechanical,temperature controllers, electronic,temperature controllers, microprocessor based,temperature controllers, recording,temperature controllers, multipoint,temperature controllers, programmable,temperature controllers, proportional action,temperature controllers, automatic, thermostatic,temperature controllers, thermocouple,temperature controllers, two-step,temperature controllers, anticipatory,temperature controllers for industrial applications,temperature controllers for the plastics processing industry,pressure regulators for food industry equipment,pressure dampers for pressure gauges,pressure regulators and reducers, air,pressure regulators and reducers, liquids,pressure regulators, diaphragm operated,pressure regulators and reducers, gas,pressure regulators, electronic,pressure regulators, manual,temperature transmitters,scalers, nucleonic,liquid level gauging system, radar type,gauges, liquid level,gauges, liquid level, enamelled,liquid level or float switches and level alarms,liquid level contact switches,liquid level transmitters,liquid level controllers, pneumatic,liquid level controllers, mercury switch type,liquid level controllers, capacitive,liquid level controllers, ultrasonic,liquid level controllers, automatic,liquid level controllers, remote,liquid level controllers, cryogenic,liquid level controllers, microwave,liquid level recorders,current meters, hydrometry,thermostats, single pole,thermostats, double pole,thermostats, encased,thermostats, cold junction,thermostats, pneumatic,thermostats, fast acting,thermostats, high temperature,thermostats, low temperature,thermostats, time controlled,thermostats, water temperature,thermostats, motor vehicle,thermostats, air conditioning systems,thermostats, room,thermostats, laboratory,thermostats, domestic electrical appliance,thermostats, industrial,thermostats for refrigerators and refrigeration plant,thermostats for commercial electrical appliances,thermostats for spa pools and saunas,pyrostats,thermostat components and accessories,discs, bimetallic, snap action, for thermostats,discs, bimetallic, slow moving, for thermostats,control systems, automatic, medical apparatus,control systems, automatic, animal feeding,control systems, automatic, for pressure transducers,control systems, automatic, industrial,control systems, computerised, for vacuum coating plant,control equipment, plastics processing,control systems for saunas,control systems for aquariums and terrariums,control systems for electric lamps,control units, programmable, for stepping motors,control panels for aerial cameras,control consoles, automatic, for clean rooms,control units, oil hydraulic,control systems, automatic, refrigeration plant,fire detection and control systems,detectors, smoke and fume,safety systems, automatic, plant shut-down,radiation monitors, air,radiation monitors, area,radiation monitors, clinical,radiation monitors, feet, hands and clothing,radiation monitors, water,radiation monitors, food,radiation monitors, portable,radiation monitors, effluent,radiation monitors, stack pipe,probes for radiation monitors,monitors, leakage, oil in water, electric and electronic,compressed air purity monitoring equipment,filters, ferrous metals,filters, non-ferrous metals,filters, wire mesh and wire gauze,filter elements, wire gauze,sieves and screens, wire,screens, wedge wire,panels, sifting,filters, metal, for domestic pumps,filters, metal, for domestic extractors,filters, metal, for coffee machines,filters, metal, for industrial machinery lubricating and cooling fluids,sieves, grading sets, for building materials,sieves, slotted, metal,filters, metal, coffee, for individual cups,screens, wire, for quarrying machinery,screens, metal, solids retention, for dishwashers,filters, metal, cooking fat,fuel cocks, metal,valves, metal, for compressors,valves, metal, for large-bore diesel engines,plug cocks, metal, automatic closing, for petroleum and inflammable liquids,plug cocks, metal, heating plant,cocks, metal, for highly viscous products,cocks, metal, for gas cooking ranges and space heaters,cocks, metal, for compressed gas piping,cocks, metal, for gas bottles,taps and cocks, metal, for the food and beverage industry,taps and cocks, metal, for the wine and cider industries,taps and cocks, metal, for breweries,taps and cocks, metal, for the dairy industry,taps and cocks, metal, for the chemical industry,taps and cocks, metal, for the nuclear power industry,barrel taps, metal,cocks, metal, for pumps,valve components, metal,cams, caps and tops for cocks and taps,balls, metal, for cocks and valves,valve discs, metal,floats, ball valve, metal,tap top conversion kits, metal,shower mixer units, stainless steel, for existing tap fittings,taps and cocks, metal, period,taps and fittings for bars,taps and fittings, metal, lever control,valve fittings, stainless steel,handwheels, metal, for valves and cocks,surge suppression equipment, metal, for water mains,cocks and valves to drawings or model,taps and cocks, metal, for refrigeration equipment,taps, metal, washing machine hose union,taps, metal, domestic, bath,taps, metal, mixing, domestic,taps, metal, kitchen,taps and cocks, metal, for laboratories,valves, metal, for the wine and cider industries,valves, metal, for breweries,valves, metal, for the dairy industry,valves, metal, for the pharmaceutical industry,valves, metal, for the chemical industry,valves, metal, for laboratories,valves, metal, for nuclear plant,valves, metal, filling, for water systems,valves, metal, safety, for storage water heaters,valves, metal, piston,safety valves, stainless steel, for compressed air hoses and pipes,gauges, vacuum,speedometers,galvanometers,display modules, vacuum fluorescent,bar graphs, digital read-out,pressure switches, refrigeration plant,bridges (electric) universal,bridges, inductance,bridges, capacitance,bridges, resistance,bridges, rf,bridges, ac.