BISBISOUS Smart Radiator Thermostat Valve — 1% Precision Control and Window-Open Detection! $114.41 CAD (50% Off)

Best Buy has the BISBISOUS smart radiator thermostat valve (white, single unit) for $114.41 CAD, down from $228.82 — 50% off. Orders over $35 ship free.

This is an actuator that replaces the manual valve head on a radiator. The housing is ABS plastic with a stainless steel valve shaft and a precision actuator inside that supports percentage-based control — from 0% (fully closed) to 100% (fully open) in exact 1% increments. Instead of the usual "about half open" guesswork, you get a repeatable digital setting, with internal calibration making sure each command actually lands where you set it.

Control is built around per-room management: schedules, group control, manual corrections and scenes like Evening Rest, Weekend or Away, all from the app. Window-open detection is the practical part — connect a window contact or trigger it manually in the app and the actuator shuts off heating for that room temporarily. The manufacturer cites 15–20% off the monthly heating bill, and the logic is configurable per room.

The app also shows daily heating data, so you can see when you're heating the most, where there's room to trim, and whether window-open detection is actually doing anything. There are no buttons on the device itself — everything runs through the app or Alexa voice control. The compact white housing reads as part of the room rather than a piece of electronics.

Single unit only, no extra accessories included. Check your radiator valve thread size before ordering.

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