Bottom price Handheld Hygrometer - RS485 High accuracy low dew point sensors with corrosion-resistant IP65/IP66 housing used in compressed air systems – HENGKO
Bottom price Handheld Hygrometer - RS485 High accuracy low dew point sensors with corrosion-resistant IP65/IP66 housing used in compressed air systems – HENGKO Detail:
HENGKO temperature and humidity module 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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RS485 High accuracy low dew point sensors with corrosion-resistant IP65/IP66 housing used in compressed air systems
Technical data humidity sensor
We adpots high precision RHT-H series capacitive digital sensor as the temperature and humidity measurement component. Please select the suitable model for your probe.
| 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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We are experienced manufacturer. Wining the majority from the crucial certifications of its market for Bottom price Handheld Hygrometer - RS485 High accuracy low dew point sensors with corrosion-resistant IP65/IP66 housing used in compressed air systems – HENGKO, The product will supply to all over the world, such as: South Korea , Montpellier , Nairobi , Our company has a skillful sales team, strong economic foundation, great technical force, advanced equipment, complete testing means, and excellent after-sales services. Our products have beautiful appearance, fine workmanship and superior quality and win the unanimous approvals of the customers all over the world.
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