Product Overview:
Si7021 Temperature and Humidity Sensor is a digital temperature and humidity sensor with a calibrated digital signal output.
It adopts dedicated digital module acquisition technology and temperature&humidity sensing technology to ensure that the sensor has a very high reliability and excellent long-term stability.
The sensor includes an integrated single-chip temperature and humidity sensor chip, which connects to a high-performance 8-bit MCU.
The Si7021 sensor has advantages such as excellent quality, ultra-fast response, anti-interference ability and cost-effective.
The sensor has 2.5mm 4-pole stereo audio male plug connector, which works perfectly with Sonoff TH10/TH16.

Product Specification:
Precision Relative Humidity Sensor: ± 3% RH (max), 0–80% RH
High Accuracy Temperature Sensor: ± 0.4°C (max), –10 to 85°C
0 to 100% RH operating range
Up to–40 to +85°C operating range
Wide operating voltage (2.2 to 3.6 V
Low Power Consumption
Factory-calibrated
Excellent long term stability

Product Advantage:
Relative humidity and temperature measuremen
All calibrated, digital outpu
Good long-term stabilit
No additional parts require
Ultra-low energy consumptio
The sensor is fully interchangeable