- This Bosch smoke detector connects to your smart home setup via Zigbee 3.0, so you'll get alerts wherever you are - Whether you're in the kitchen, or halfway through a nap on the sofa, its loud 85 dB siren makes sure you hear it - It automatically kicks in frost protection below 4°C, so your pipes stay safe even when the heating's off - It detects sudden temperature drops and adjusts the heating to save energy
