Sonoff Si7021 temperature and humidity sensor

Sonoff Si7021

Sonoff Si7021 is a digital temperature and humidity sensor with a calibrated digital signal. It uses dedicated digital input acquisition technology for temperature and humidity sensing, which ensures very high sensor accuracy, reliability and excellent long-term stability. The sensor includes an integrated single-chip temperature and humidity sensor that connects to a high-performance 8-bit MCU. The Si7021 sensor has advantages such as excellent quality, fast response, interference suppression and operating economy. The sensor is equipped with a 2.5 mm four-pole stereo connector and works perfectly with Sonoff TH10 / TH16 switches.

Specifications:

• Power supply: 3.3-5.2 VDC
• Humidity: 0 - 99.9% RH
• Temperature: -40 ° C - 80 ° C
• Accuracy humidity: ± 3% RH
• Accuracy temperature: 0.5 ° C
• Cable length: 50cm