Temperature sensors and meters for the home.
Unlike my other sensors that don't show when a reading was taken, the UNI-T Mini Temperature Humidity Meter (UT333BT) gives real-time room readings. The BT suffix marks this as the Bluetooth version of the meter.
The Aqara TVOC Air Quality Monitor measures temperature, humidity, and total volatile organic compounds. I bought it to watch the air in my newly renovated home, where fresh carpentry gives off chemical compounds.
I bought the Aqara Temperature and Humidity Sensor for S$22.75 during 9/9, down from S$27.90. This small HomeKit-compatible wireless sensor measures temperature, humidity, and air pressure, running about two years on a CR2032 battery.
I grabbed the Xiaomi Mi Multifunctional Digital Clock on Lazada for S$16.99. It has a 3.7-inch e-ink display and pairs with the Mi Home app, but only if your region is set to China.