Features 1、[Excellent Performance] The sensor has excellent long term stability, low hysteresis, strong resistance to chemical contamination and excellent repeatability. 2、[Aluminum Alloy Housing] The aluminum alloy metal housing of the sensor is treated with oxidation electrolysis, which is dustproof, anti corrosion, anti pollution, anti interference, etc. 3、[High Reliability] The sensor uses a digital integrated sensor with a reliable digital processing circuit, thus converting the temperature and humidity in the environment into the corresponding standard signals. 4、[Sensitive] The sensors are small in size, light in weight, have a wide measurement range, high accuracy, and quick response time. 5、[Main Application] This sensor is the ideal solution for accurate relative humidity and temperature measurement in heating, ventilation and air conditioning applications. Specification Item Type: Temperature Humidity Sensor Transmitter Material: Aluminum alloy, PU Temperature Range: -40-120℃ Humidity Range: 0-99.9%RH Temperature Accuracy: ±0.5℃ (25℃, 60%RH) Humidity Accuracy: ±3%RH(25℃, 60%RH) Resolution: 0.1℃, 0.1%RH Output Current: 4-20mA Lead Wire Length: Approx. 95cm / 37.4in Sampling Period: 3s Power Consumption: <10mA Pin Assignment: Red V+ Power positive Yellow H Humidity output Black V- Negative power supply White T Temperature output Package List 1 x Temperature Humidity Sensor Transmitter 3 x Screw 2 x Expansion Screw 1 x Sponge Sticker 1 x Pin