RuuviTag is 100% wireless and has a long lasting and user replaceable CR2477 coin cell battery with lifespan of years.
RuuviTag uses Bluetooth LE with world-class antenna design. The range depends on the surroundings.
RuuviTag is water proof with class of IP67. It's safe to keep it outside to build your own weather station.
It's possible to mount the sensor in remote or hidden places. This way it doesn't disturb everyday life.
Tempo Discs are made from quality components such as Nordic Semiconductors's Bluetooth System on Chip, Bosch Sensortec's or Silicon Labs's environmental sensor and Johannson ceramic antenna.
Tempo Disc is 100% wireless and has user replaceable CR2032 coin cell battery with a lifespan of approximately a year.
Tempo Discs are the smallest sensors listed on this page. With Tempo Disc Silicone Holder accessory, it's possible to mount the sensor securely in remote or hidden places.
With Mijia, you can check the temperature, humidity and remaining power when you are next to the sensor.
It's easy to mount the sensor on wall by using the included magnetic wall sticker.
Mijia is 100% wireless and has user replaceable AAA battery with support for a whole year.
The external probe allows you to measure the temperature of liquid, for example.
Inkbird is 100% wireless and has user replaceable AAA battery with lifespan of months.
Meazurem gateway supports also the IBS-TH1 Mini and IBS-TH1 Plus smart sensors.