Temperature & Humidity Transmitter
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৳1,550
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Temperature & Humidity Transmitter SHT20 Sensor Industrial-Grade High-Precision Monitoring Modbus RS485. This RS485 SHT20 Temperature Humidity Sensor 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 Modbus protocol.
Specifications:
- Working voltage: 9-36V
- Maximum power: 0.3W
- Operating temperature: -20 ℃ ~60 ℃, humidity 0% RH~80% 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
Wiring instructions:
- Red: Positive Power
- Black: Negative Power
- Yellow: 485-A
- White: 485-B
Parameters:
- Working voltage: DC4-30V (do not exceed 33V )
- High power: 0.2W
- Working temperature: temperature -20 ℃ +60 ℃ , humidity 0%RH-RH
- Control accuracy: temperature ±0.3 ℃ (25 ℃ ) , humidity ±3%RH (25 ℃ )
- Output interface: RS485 communication (standard MODBUS protocol and custom common protocol), see protocol description for details
- Device address: 1-247 can be set , the default is 1
- Baud rate: 9600 by default (users can set it by themselves), 8 -bit data, 1 -bit stop, no parity
- Size: 60*30*18
- MODBUS Protocol
Product Function Code:
- 0x03: read holding register
- 0x04: read input register
- 0x06: Write a single holding register
- 0x10: write multiple holding registers
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