product name

HG803 Digital Temperature and Humidity Transmitter

Brand: Nexisense

Model: HG803

Output: RS485 4-20mA 0-5V 0-10V

Power: 4-20mA/0-5V/0-10V

IP Rating: IP65

Range: -40℃~80℃

Descripción: Nexisense HG803 digital temperatureand humidity transmitterfor pharmaceutical industry. Industrial-grade RS485/4-20mAoutput with high accuracy and Modbus-RTU protocol.

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Datasheet

Products Description

Precision,Reliability, and Broad Compatibility

The Nexisense HG803 is a multifunctional, high-precision temperature and humidity transmitter designed for demanding industrial environments...

Product Definition

The HG803 is a smart device combining display, acquisition, signal conversion, and output functions into a single compact unit...

Operating Principle

Using high-precision imported sensors, the HG803 collects temperature and humidity data, processes it, and outputs analog or digital signals...

Structural Analysis

High-sensitivity sensing probe (up to20m)
LED digital display module
Signal output interfaces
Reinforced housing
Power protection circuit

Measurement Method and Advantages

Measurement: Thermistor for temperature, capacitive sensor for humidity

Advantages: GMP compliance, EMC protection, flexible probe, digital calibration, international compatibility

Technical Specifications

Specification	Description
Brand	Nexisense
Model	HG803
Power Supply	DC 10~30V
Signal Output	Analog: 4-20mA / 0-5V / 0-10V; Digital: RS485
Protocol	Modbus-RTU
Temperature Range	-40~+80°C
Humidity Range	0~100%RH
Accuracy (T/H)	±0.3°C / ±2%RH
Resolution	15-bit analog, 0.1/0.01 digital
Response Time	≤2s
Probe Length	Up to 20m
Display	LED (optional)
Installation	Wall-mounted
Housing	ABS / Industrial-grade optional
Operating Environment	-40~85°C, 0~100%RH
Optional Features	Dew point, °F unit, alarm