Bought the Aqara Temperature and Humidity Sensor during 9/9 from Souky’s Lazada Store for S$22.75 after the usual double-digit sales day discount. If not, it retails for S$27.90.

Aqara Temperature and Humidity Sensor - Box Font
Aqara Temperature and Humidity Sensor – Box Font
Aqara Temperature and Humidity Sensor - Box Back
Aqara Temperature and Humidity Sensor – Box Back
Aqara Temperature and Humidity Sensor - Box
Aqara Temperature and Humidity Sensor – Box
Aqara Temperature and Humidity Sensor - Box Contents
Aqara Temperature and Humidity Sensor – Box Contents

This HomeKit compatible small wireless sensor measures temperature, humidity, and air pressure.

Aqara Temperature and Humidity Sensor - Front
Aqara Temperature and Humidity Sensor – Front
Aqara Temperature and Humidity Sensor - Back
Aqara Temperature and Humidity Sensor – Back

A CR2032 battery powers it; on paper, the battery life is about two years.

Aqara Temperature and Humidity Sensor - Back Open
Aqara Temperature and Humidity Sensor – Back Open
Aqara Temperature and Humidity Sensor
Aqara Temperature and Humidity Sensor

Pairing is straightforward. Hold the reset button at the top of the sensor for 5s to get it into pairing mode, and add it the usual way on the Aqara app.

Aqara iOS App - Add Device
Aqara iOS App – Add Device

All three types of readings will be shown on the Aqara app. However, because Apple HomeKit doesn’t support air pressure readings, only the temperature and humidity will show up in the Apple Home app.

Aqara iOS App - Aqara Temperature and Humidity Sensor
Aqara iOS App – Aqara Temperature and Humidity Sensor
Apple Home App
Apple Home App