RHT-A1 Temperature and Relative Humidity Sensor

T / RH Environmental Sensor, Digital I2C, A-Series, Fast on-board compensation

Compact T / RH reference for accurate gas sensor environmental compensation

The RHT-A1 is a compact temperature and relative humidity sensor module designed to sit next to gas sensors and provide accurate environmental compensation for air quality, PID, NDIR and electrochemical measurements. It delivers temperature and humidity values via a digital I2C interface, simplifying integration into portable and fixed instruments. With wide operating ranges and low current consumption, RHT-A1 is ideal for multi-gas safety detectors, indoor / outdoor air quality monitors and OEM boards. OEMs benefit from reduced design complexity and improved overall measurement accuracy.



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Key Specifications:

 

Sensor Model

Target Parameters

Technology / Package

Measurement Range

Typical Accuracy

Interface / Supply

RHT-A1

Temperature & Relative Humidity

Digital environmental sensor, A-Series format

Temperature: –40 to +80°C
Relative Humidity: 0–95% RH

 

Temperature error: ±0.2°C 
RH error: ±2% RH

 

I2C digital output; 2.3 – 5.5 V supply (RHT-A1)
 

Feature

Benefit

Co-packaged temperature and RH sensing

Delivers both key environmental inputs from a single A-Series footprint, saving PCB space and BOM cost.

Designed to sit adjacent to gas sensors

Ensures compensation is representative of actual sensor conditions, improving gas, particle and VOC accuracy.

Digital, corrected I2C output

Eliminates the need for complex analogue front ends and simplifies integration into microcontroller designs.

Wide operating range (–40 to +80°C, 0 – 95 % RH)

Supports harsh industrial, outdoor and indoor environments with a single hardware platform.

Low current consumption

Minimises power draw in portable, battery-powered safety and air-quality instruments.