The Sensy S1 Pro Multi Sense Zigbee is a Zigbee-based multi-sensor for smart homes. It combines motion, light and temperature sensing in one unit so automations can react to presence and room conditions together. It suits people building a Zigbee network who want one sensor to drive lighting, heating and security routines. Against single-purpose Zigbee sensors it covers more ground per device, but it needs a Zigbee hub and works best inside a well-meshed network.
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Lowest price we've seen: $75.95 on Nov 12 at Ameridroid. Tracked across 1 store since Nov 12.
Rated 4.6 out of 5 from 38 ratings. Owners report it works reliably once paired and appreciate the combined sensing for automations. A few mention pairing and range as the fiddly parts.
The S1 Pro Multi Sense is a wall-mounted Zigbee sensor that combines mmWave radar presence detection with air quality, temperature, humidity and light sensing. It detects presence with radar, not cameras, so it captures no images or recordings. All data stays local in Home Assistant, with no cloud and no subscriptions.
The mmWave radar tracks up to three people at once, including their position, distance and movement. It supports three configurable detection zones and one exclusion zone, so you can choose where presence triggers automations and where it is ignored. It also detects people who move slowly or stay still.
The built-in air quality sensor monitors eCO₂, VOCs, IAQ and gas resistance. An optional high-precision add-on enables true CO₂ measurement. A built-in LED and buzzer give visual and audible feedback, and Home Assistant automations control when and how they respond. A purple breathing LED shows that the device is not connected to Zigbee. Optional mounting add-ons allow flexible positioning.
