1[Durable Material] Made of high quality ABS material, durable, wear resistant, small in size, using a dedicated analog circuit, high accuracy temperature and humidity measurement unit. 2[Safe And Reliable] 10-30V wide voltage range input power supply, safe and reliable, beautiful appearance, easy to install, can be wall mounted or rail mounted. 3[IP65 Dust Resistant] Industrial wall mounted high protection grade housing, IP65 dust resistant protection grade, rain and snow protection and good air permeability. 4[High Accuracy] The circuit adopts industrial grade microprocessor chips and high accuracy temperature and humidity sensors to ensure reliability, high accuracy and interchangeability. 5[4-20mA Analog Signal Output] Adopt standard industrial interface 4-20mA analog signal output, can be connected to on site digital display, PLC, inverter, industrial control host and other equipment Item Type: Temperature Humidity Transmitter Material: ABS Product Size: Approx. 147 x 88 x 41 mm or 5.8 x 3.5 x 1.6 in Anti Dust Protection Grade: IP65 Power Supply Wiring: Wide voltage 10-30V DC power input Output Interface Wiring: The device is equipped with 2 independent analog outputs as standard Weight: Approx. 157g or 5.5oz Specific Wiring: Circuit Identification Instruction Power Supply VCC Positive Power Supply GND Negative Power Supply Output TH Positive Temperature Signal RH Positive Humidity Signal (Note: The device does not provide a communication line by default) Parameter: DC Power Supply (Default) DC 10-30V Maximum Power Consumption Current Output 1.2W Voltage Output 1.2W A Accuracy Humidity 2 percent RH (60 percent RH25) Temperature 0.425 B Accuracy Humidity 3 percent RH (60 percent RH,25) Temperature 0.5 (25) Temperature Range -40-and120, default -40-and80 Humidity Range 0 percent RH-100 percent RH Transmitter Circuit Working Temperature And Humidity -20-and60, 0 percent RH-95 percent RH A9:C28(non B25condensing) Probe Operating Temperature -40-and120, default -40-and80 Probe Working Humidity 0 percent RH-100 percent RH Long Term Stability Humidity 1 percent RH or y Temperature 0.