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SONOFF Si7021 Temperature & Humidity Sensor

SONOFF Si7021 Temperature & Humidity Sensor For DIY Smart Home Wireless Switch Socket Module

GW-A-Sonoff Si7021
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  • Relative humidity and temperature measurement
  • All calibrated, digital output
  • Good long-term stability
  • No additional parts required
  • Ultra-low energy consumption
  • The sensor is fully interchangeable
  • Downloadable app
R139 incl. VAT
R121 excl. VAT

Volume discounts

Quantity Price You Save
5 R133 4%
10 R131 6%

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If ordered before 4PM:
DELIVERED next business day (main centres)
or 3-5 days (regional areas or large items)
COLLECTION from GeeWiz available SAME DAY
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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, S22 Socket.


Colour: Black
Material: -
Humidity Measuring Range: 0 - 100% RH
Temperature Measuring Range: -10C - +85C
Voltage: 3.3V
Height: 20.3mm
Width: 40.6mm
Length: 61mm
Cable length: 500mm
Weight: 26g
GW-A-Sonoff Si7021

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