Target: Light
Model: ZH401
Detection range: 1500~6000lx
Detection principle: Photoelectric conversion
Output signal: Low level/High resistance state(Customizable)
Notes: IATF16949 compliant

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ZH401 uses the ambient light sensor to detect the light intensity in front of the vehicle and can output different control signals to automatically control the switching status of the vehicle lights in different lighting environments.


Applied to the detection of light intensity outside the vehicle


  • Simple principle, simple structure
  • Low cost, high cost performance
  • Can adjust the threshold voltage, flexible and changeable


Light Sensor
Detection principle Photoelectric conversion
Detection target Light
Detection range 1500~6000lx
Operating voltage DC (9~16)V
Operating current ≤100mA
Power consumption <0.3W
Response time Low level-delay 0.5s
High resistance state-delay 10s
IP rating IP5K
Operating temperature  -40℃~85℃
Storage temperature  -40℃~100℃
Operating humidity 0~95%RH(No condensation) 
Output mode Low level/High resistance state(Customizable)

* The description and specifications might be changed without notice. Please contact us for the latest information before placing orders.

Technical Support:

Customized technical design and function, LOGO and package are available without extra charge (including molding fee) for mass volume.

The sensors don't have sleeping mode. It can be set in program if needed.

All Winsen products go through strict inspections and tests to make sure they are 100% qualified before shipping out.

The sensor has been fully tested (not calibrated) before leaving the factory. However, after transportation and storage, the environment conditions change, and the surface of the sensor absorbs moisture, mixed gas, pollution matters, etc. It is recommended that customers perform aging and calibration after sensors become stable according to the program and use occasions of the whole device.

15﹪-90﹪RH without condensation,greater or less than this range or long-term high temperature and high humidity will affect the life of the sensor.

Our sensors are certified with CE, 3C, ROHS, anti-explosion, fire prevention, and coal mining safety according to different applications. And we provide assistance for new certification.

Many factors can cause the sensor to fail such as broken wires in transportation, poisoning, falling off of the sensitive material, damage to the heating wire (device), etc. Please find specific cause in each category with Winsen’s aftersales.

Winsen provides professional consultation and service before and after sales. We will recommend the best fitting sensor for your demand. If you have any problem, don’t hesitate to email us to

Due to high volume of daily incoming emails and time zone difference, we may not be able to reply your emails immediately. But we will reply to your inquiry in 24 business hours.