Technology brightens future and responsibility brings glory. After its establishment, Henan Changrun Instrument Co., Ltd. has been focused on the RD of level measurement instrument, especially specialized in application of the auto sensors and smart IOT. As a technological enterprise, Changrun also keeps in step with other new high-tech industries. Headquartered in economic and technological development zone of Zhengzhou, Changrun now has a staff of more than 180, among which more than 20 are research and development staff with rich experience.

Over the years, Changrun has been dedicating itself to the development and production of capacitive sensors. With miniaturized, integrated, intelligent and multifunctional design, Changrun has found its inroad into the high-end market and is awarded as "Research Center of Henan Province for Liquid Level Precise Measurement and Control Technology" by Department of Science and Technology of Henan Province. Besides, Changrun has achieved 9 patents and won National Technology Achievement Award for 3 times. Changrun has developed a sound quality control system across the company and gained the ISO9001: 2000 international quality certification.

Equipped with rigid CNC machine tool, four axes machining center, automatic SMT production line, laser welding machine, temperature alternating wet test chamber, VMJ300, 2D optical image measuring instrument and other new sets of equipments, all key materials and key components can be independently designed and manufactured by Changrun itself. Now Changrun has a capability of 1,000,000 liquid level sensors per year.

The main products include Series of CR-606 digital oil level sensors, CR-6000 GPS auto terminals, CR-603 Intelligent liquid level meter for drum of boiler and CR-605 universal level meter. Complementary products include pressure (DP) transmitter, Digital Display Meter, Safety Barrier, Signal isolator etc.

Especially, employed with our unique technique, Series of CR-603 Intelligent liquid level meter for drum of boiler, CR-606 digital oil level sensors and CR-605 universal level meter can achieve automatic calibration despite of temperature variations and medium Transformation,which means the meters have high antijamming capability and will show an accurate measurement result. This technique, the first of its kind in China, not only meets the international advanced level but also enjoys a good reputation among customers at home and abroad.

Advantages of installation an oil level sensor:

1. Regulate driving habits. Eradicate oil stealing, oil leak and detour. Prevent drivers form doing private jobs during working time or using car for personal use.

2. Measure out the refuel volume and then false value-added invoices can be avoided.

3. Measure out the fuel consumption per 100km.

4. Help with evaluating the station of the car and checking out whether the drivers have sought for energy conservation during driving.

Quality, the proof of actual strength;

Quality, the proof of high value.

Top class products and service are what we offer;

Every accumulation is for better developments;

Every preparation is for more breakthroughs;

Every start is for self-transcendence.

With glory history, Henan Changrun Instrument Co., Ltd. will create you a bright future. We are willing to be your potential and best supplier, and will be very appreciate to receive any inquiry from you.

and from now on ,our company was launched without punching installation of car oil level sensor of the vehicle fuel conusmption monitoring systerm. this new system has six characteristics :Replace the original car sensor ,no need punching installation,no need to wiring ,automatic calibration ,save installation time ,saving the cost of installation!also this system has three parts :fuel sensor----modem---gps tracker plus vehicle terminal software interface on computer. we will try the best service for you !