Well-designed Iot Humidity Sensor - IP67 wireless RHT22 High-temperature dryers sensor 316 stainless steel temperature humidity dew point transmitters sensor detective probe ( dustproof housing ) – HENGKO
Well-designed Iot Humidity Sensor - IP67 wireless RHT22 High-temperature dryers sensor 316 stainless steel temperature humidity dew point transmitters sensor detective probe ( dustproof housing ) – HENGKO Detail:
HENGKO temperature and humidity transmitter sensors stainless housing adopt high precision RHT series sensor equipped with a sintered metal filter shell for large air permeability, fast gas humidity flow and exchange rate. The shell is waterproof and will keep water from seeping into the body of the sensor and damaging it, but allows air to pass through so that it can measure the humidity (moisture) of the environment. It has been widely used in HVAC, consumer goods, weather stations, test & measurement, automation, medical, humidifiers, especially perform well in an extreme environment like acid, alkali, corrosion, high temperature and pressure.
Theory: current and inductance
Temperature range: -20~+100 ℃ -40~+125 ℃
Humidity range: (0~100)% RH
Features: Excellent long-term stability,
Probe housing: sintered stainless steel material, can be customized
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IP67 wireless RHT22 High-temperature dryers sensor 316 stainless steel temperature humidity dew point transmitters sensor detective probe ( dustproof housing )


| Model | Humidity Accuracy(%RH) |
Temperature (℃) | Voltage Supply(V) |
Interface | Relative Humidity Range(RH) |
| RHT-20 | ±3.0 @ 20-80% RH |
±0.5 @ 5-60 ℃ |
2.1 to 3.6 | I2C | -40 to 125 ℃ |
| RHT-21 | ±2.0 @ 20-80% RH |
±0.3 @ 5-60 ℃ |
2.1 to 3.6 | I2C | -40 to 125 ℃ |
| RHT-25 | ±1.8 @ 10-90% RH |
±0.2 @ 5-60 ℃ |
2.1 to 3.6 | I2C | -40 to 125 ℃ |
| RHT-30 | ±2.0 @ 10-90% RH |
±0.2 @ 0-65 ℃ |
2.15 to 5.5 | I2C | -40 to 125 ℃ |
| RHT-31 | ±2.0 @ 0-100% RH |
±0.2 @ 0-90 ℃ |
2.15 to 5.5 | I2C | -40 to 125 ℃ |
| RHT-35 | ±1.5 @ 0-80% RH |
±0.1 @ 20-60 ℃ |
2.15 to 5.5 | I2C | -40 to 125 ℃ |
| RHT-40 | ±1.8 @ 0-100% RH |
±0.2 @ 0-65 ℃ |
1.08 to 3.6 | I2C | -40 to 125 ℃ |
| RHT-85 | ±1.5 @ 0-100% RH |
±0.1 @20 to 50 °C |
2.15 to 5.5 | I2C | -40 to 125 ℃ |
Can't find a product that meets your needs? Contact our sales staff for OEM/ODM customization services!

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Like a result of ours specialty and repair consciousness, our enterprise has won a superb popularity amid buyers everywhere in the environment for Well-designed Iot Humidity Sensor - IP67 wireless RHT22 High-temperature dryers sensor 316 stainless steel temperature humidity dew point transmitters sensor detective probe ( dustproof housing ) – HENGKO, The product will supply to all over the world, such as: Costa Rica, Australia, New York, We hope we can establish long-term cooperation with all of the customers. And hope we can improve competitiveness and achieve the win-win situation together with the customers. We sincerely welcome the customers from all over the world to contact us for anything you need!
We have been appreciated the Chinese manufacturing, this time also did not let us disappoint,good job!





