Bosch Smart Home Raumthermostat II, smart room thermostat

Bosch Smart Home Raumthermostat II - 85 g, ZigBee 3.0

Published on 09/09/2026 at 06:25 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS

Bosch Smart Home Raumthermostat II measures room temperature and humidity, weighs 85 g, and uses ZigBee 3.0. Bosch positions the model for the Bosch Smart Home system.

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Bosch Smart Home Raumthermostat II measures room temperature and humidity, weighs 85 g without batteries, and uses ZigBee 3.0. The Bosch Smart Home site lists the device with a price of 79.95 EUR and says it works only with the Bosch Smart Home Controller.Bosch Smart Home Raumthermostat II

Key Specs And Box Contents

The support page lists the device type designation as BTH-RM, the protection rating as IP21, and the dimensions as 86 x 87 x 28 mm. It also lists four AAA batteries, one wall-mount plate, one stand, and one adhesive-mount set in the box.Bosch Smart Home help page

The same help page lists a battery life of less than 2 years and a radio frequency band of 2.4-2.4835 GHz. Bosch also says software and security updates run for at least four years after the last sale in its online shop.

Where It Fits

This model is the battery-powered room thermostat for Bosch Smart Home heating setups, not the 230 V wired version. Bosch says the battery model can be used to measure temperature at the desired spot in a room and can coordinate Bosch radiator thermostats II.Bosch Smart Home Raumthermostat II

For wired heating systems, Bosch lists the separate Raumthermostat II 230 V with device type designation BTH-RM230Z, housing dimensions of 86 x 87 x 35 mm, and a switch output with a potential-free relay. That keeps the battery model in the room-control role and the 230 V model in the hardwired control role.

Price And Context

At 79.95 EUR, the battery model sits below the 230 V version's 114.95 EUR Bosch lists for the floor-heating model on its German site. The gap makes the battery model the lower-priced entry into Bosch room-based heating control.Bosch Smart Home Raumthermostat II 230 V

Bottom Line For Buyers

Bosch Smart Home Raumthermostat II suits households that already run Bosch Smart Home heating gear and want a battery-powered controller with temperature and humidity sensing. The 85 g weight, 86 x 87 x 28 mm body, and ZigBee 3.0 radio keep the profile compact and networked.