HT20 RS485 Industrial Grade temperature and humidity sensor

The product adopts industrial-grade chip and high precision temperature and humidity probe to ensure the excellent reliability, high precision and interchangeability of the products. RS485 hardware interface (with lightning protection design), the protocol layer compatibility standard industry Rtu protocol.

Technical Specifications:

Working voltage: 4-30V
Maximum power: 0.2W
Operating temperature: -20 ℃ ~60 ℃, humidity 0% RH~100% RH
Accuracy: Temperature ± 0.3 ℃ (25 ℃), humidity ± 3% RH (25 ℃)
Output interface: RS485 (standard Rtu protocol)
Device address: can be set to 1-255, the default is 1
Baud rate: 9600, 8 bits of data, 1 stop, no parity
Size: 60x30x18mm
Cable length: 1m

Wiring instructions:

Red: Positive Power
Black: Negative Power
Yellow: 485-A
White: 485-B