Features DURABLE CASE: The aluminum alloy metal shell of the transmitter is treated by electrolytic oxidation treatment, the shell is dustproof, corrosion resistant, prevents pollution, resistance to interference, etc. OPERATING PRINCIPLE: The FG6485 network type temperature and humidity transmitter adopts an excellent built-in digital sensor, equipped with reliable digital processing circuit, so as to convert the temperature and humidity in the environment into corresponding standard RS485 signals, which can be reliably and carefully centralized monitored with the top computer system. HIGH PRECISION: With excellent long-term stability, low hysteria, strong resistance to chemical pollution and excellent repeatability, the sensor is the ideal solution for accurate measurement of relative humidity and temperature in HVAC applications. HIGH TEMPERATURE RESISTANT THREAD CAP: Wall hanging air duct transmitter adopts metal threaded cap, bring good sealing, high temperature resistance. GOOD FILTERING EFFECT: The transmitter adopts a sintered metal filter to filter the air, easy to clean, extends the life of the sensor. Specification: Item Type: Temperature Humidity Sensor Transmitter Temperature range: -40~120℃ Humidity range: 0 to 99.9% RH Temperature accuracy: ±0.3°C (25°C, 60%RH) Humidity accuracy: ±2%RH (25℃, 60%RH) Resolution: 0.1°C, 0.1%RH Output signal: RS485 output Supply voltage: 12~36VDC Line length: approx. 95 cm/37.4 inches Sampling period: 3S Power consumption: <10mA. Pin allocation: Red: V+: Positive terminal of the power supply Yellow: A: 485 End A Black: V-: Negative power terminal White: B: End 485B Package list: 1 x Sensor. 3 x Screws 2 x expansion screws. 1 x Sponge Patch 1 x Card Pin Package List 1 x Sensor 3 x Screw 2 x Expansion Screw 1 x Sponge Patch 1 x Card Pin