Sonoff Sensor Si7021

5.00 out of 5


Main Features:
● Operating voltage: DC 3.1 – 5.5V
● Temperature: resistive sensor
● Temperature range: -40 – 80 Deg.C
● Accuracy: 25 Deg.C
● Humidity: capacitive sensors
● Moisture measurement range: 0 – 99.9 percent RH
● Accuracy: + / – 3 percent RH ( 10 – 90 percent RH ) at 25 Deg.C
● Output signal: single
● Line length: 0.5 meters
● Sensor housing specifications: 55.0 x 27.0 x 13.0mm ABS plastic
● Interface: 2.5mm audio interface

Categories: accessories, SONOFF



Sonoff 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
Excellent long term stability

Product Advantage:

Relative humidity and temperature measurement
All calibrated, digital output
Good long-term stability
No additional parts require
Ultra-low energy consumption
The sensor is fully interchangeable

Package included:

1 x Si7021 Temperature Humidity Sensor

1 review for Sonoff Sensor Si7021

  1. 5 out of 5

    good product

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