Target: Environment relative humidity,temperature
Model: ZS03
Detection principle: Temperature and humidity detection
Characteristics: 1.Low cost, Low power consumption, Small sizes;2.Single wire serial interface, High sensitivity; 3.Calibrated, digital output;4.RESET compliant

ZS03 Manual download
Get Price Whatsapp


ZS03 is digital type of temperature and humidity module. It employs polymer resistance-type moisture sensor and NTC, and matches SCM with good performance. It has advantages of high quality, quick response, strong anti-interference &etc.


Storage, industrial production, process controlling, environment monitoring, household appliances, meteorological field


  • Low cost
  • Low power consumption
  • Small sizes
  • Single wire serial interface
  • High sensitivity
  • Calibrated, digital output


Part No.  ZS03 
Detection Object  Relative humidity, temperature 
Operation Voltage  3.3~5.5V DC 
Detection range  20~90%RH 
Accuracy for humidity detection  ±5%RH (at25℃,60%RH,Vin=3.3V) 
Accuracy for temperature detection  ±1℃ 
Operation temperature  -20~60℃ 
Operation humidity  20~90%RH(non-condensation) 
Package  Single row straight 4-pins(SIP4) 

* 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.