RF Wireless Thermostat - Cable-Free Temperature Switching for Fans and Heaters
Best for: Growers who want automatic temperature-triggered switching for a fan or heater without running cables across the room.
Our thoughts
The wireless link between sensor and switch is what makes this genuinely useful - you can put the sensor exactly where the temperature actually matters, at canopy height, without a cable trailing back to the socket. Simple, effective automation for anyone who's tired of manually flicking a fan or heater on and off.
The RF Wireless Thermostat is a two-part system: a wireless remote sensor unit that reads the ambient temperature, and a separate plug-in switch module that the sensor controls over radio frequency. Set your desired temperature threshold on the sensor and it will wirelessly signal the plug module to switch on whatever's connected to it once that threshold is crossed - either above or below the set point, depending on how you configure it.
That flexibility means it can be set up to switch on a fan when the room gets too warm, or a heater when it gets too cold, all without running a cable between the two units. The remote sensor can be positioned up to 20 metres away from the switch module in open, unobstructed conditions, and the switch itself can handle up to 3000 watts (3kW) - comfortably enough for the vast majority of fans or an oil-filled radiator.
How it compares
Wireless thermostatic switches sit between basic plug-in thermostats and full digital fan controllers in terms of features and price.
- Compared with wired plug-in thermostats, the wireless link avoids running a sensor cable across the grow space, which matters if the socket and the spot you need to monitor aren't close together.
- Compared with app-connected wifi thermostats like the Inkbird ITC-308, this unit is simpler and doesn't need a wifi connection or app, trading remote monitoring for straightforward, no-fuss operation.
- Compared with a full precision fan speed controller like the Rhino 2EC, this is a basic on/off switch rather than variable speed control - it switches equipment on and off rather than ramping fan speed up and down.
A simple, effective step up from manual switching for anyone who doesn't need full variable-speed automation.
Usage guidance
Setup is straightforward once the sensor and switch are in range of each other.
Positioning the sensor
Place the remote sensor at canopy height or wherever the temperature you're trying to control actually matters, keeping it within the 20-metre open-area range of the switch module.
Setting the threshold
Set your desired switch-on temperature on the sensor unit, choosing whether it should trigger above the threshold (for a cooling fan) or below it (for a heater).
Wiring the load
Plug your fan or heater into the front of the switch module, keeping the total load under the 3000W rating.
Technical specifications
- Switching capacity: Up to 3000W (3kW)
- Control type: Wireless RF sensor to plug-in switch module
- Sensor range: Up to 20 metres, open area
- Trigger modes: Switch on above or below set temperature
- Connection: No cabling required between sensor and switch
Who this is for
- Growers who want automatic fan or heater switching without wiring in a sensor cable
- Anyone monitoring temperature somewhere awkward to run a wire to
- Budget-conscious growers who don't need full variable-speed fan control
Best suited to simple on/off temperature control rather than fine-tuned speed regulation.
Our take
This is a genuinely handy bit of kit for anyone who wants automated temperature control without the hassle of running cables or investing in a full digital controller. The 3kW switching capacity and 20-metre range cover the vast majority of home grow setups comfortably.
One we sell a lot of for new growers looking to take manual switching out of their daily routine.
