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Standard Room Temperature Humidity Sensor

Two-line communication, data platform can check
The product supports wired RS485 communication and wireless LoRa communication, and can query data on the platform with the IoT gateway.
Stainless steel material, effectively guarantee the service life
The sensor shell is made of 304 stainless steel, which is beautiful in appearance and corrosion-resistant, which can effectively ensure the service life of the sensor.
Imported chips to ensure excellence in harsh environments
The circuit adopts imported industrial-grade microprocessor chips, imported high-precision thermocouples, and low-temperature drift temperature measurement chips to ensure excellent reliability and high precision of products in low-temperature, high-humidity and high-temperature and high-humidity environments.
Easy to use, meet the high requirements of the maintenance site
The product is easy to use and maintain, and meets the high reliability requirements of the maintenance site safety monitoring for the equipment.

产品描述
Product Description
Roduct Parameters
Specifications
Instructions For Use

Two-line communication, data platform can check
The product supports wired RS485 communication and wireless LoRa communication, and can query data on the platform with the IoT gateway.
Stainless steel material, effectively guarantee the service life
The sensor shell is made of 304 stainless steel, which is beautiful in appearance and corrosion-resistant, which can effectively ensure the service life of the sensor.
Imported chips to ensure excellence in harsh environments
The circuit adopts imported industrial-grade microprocessor chips, imported high-precision thermocouples, and low-temperature drift temperature measurement chips to ensure excellent reliability and high precision of products in low-temperature, high-humidity and high-temperature and high-humidity environments.
Easy to use, meet the high requirements of the maintenance site
The product is easy to use and maintain, and meets the high reliability requirements of the maintenance site safety monitoring for the equipment.
Wiring Instructions
- Red wire: Positive power supply (12V DC).
- Black wire: negative power supply (ground wire).
- Green line: RS485—A+.
- Yellow line: RS485-B-.

Specifications	parameter
Temperature measurement range	-50℃~150℃
measurement accuracy	±0.5℃
Humidity measurement range	0~100%RH
precision	±3%RH
operating temperature	-30℃~60℃
Transmission method	RS485, LORA wireless transmission
reliability	anti-static, dust-proof, waterproof case
Humidity sensor	HS110LF (Humirel, France)
Temperature sensor	DS18B20 (US MAXIM)

Instructions For Use

When powered on for the first time, connect the power supply correctly and connect the gateway according to the wiring instructions. The device supports LoRa and RS485 communication.

Protocol Description

LoRa Protocol

If you need to connect to the LoRa protocol, please contact our technical team

Modbus Protocol

1. Definition of holding register address

Address	Register information	Measurement resolution	Measurement range	Operation
0x0000	Temperature	0.01℃	-40 ~ 125℃	read only
0x0001	Humidity	0.1%RH	0%RH ~ 100%RH	read only

2. Example

Query the real-time temperature value of the device (485 address is fixed to 0x02).

Query Frame:

Address code	function code	Start address	Data length	Check code low position	Check code high position
0x02	0x03	0x00 0x00	0x00 0x01	0x84	0x39

Reply Frame:

Address code	function code	returns the number of valid bytes	Temperature value	Check code low position	Check code high position
0x02	0x03	0x02	0x00 0x12	0x7C	0x49

Temperature: 0012H (hexadecimal)=18=>temperature=18℃.

Disclaimer OF Warranties

The company reserves the right to change this specification and update the product. The specification and product may be updated without prior notice without affecting the product quality and user usage. We are not responsible for any direct, indirect, intentional or unintentional damage and hidden dangers caused by improper use and out-of-specification use.

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Standard Room Temperature Humidity Sensor

Wiring Instructions