Fibaro universal sensor and relay for UFH

Other Devices & Integrations Climate Control & Temperature Sensors
#1

I was thinking of using the Fibaro universal sensor and relay to monitor and control my electric underfloor heating, the universal sensor would be connected to a DS18B20 Digital Thermometer to measure floor temp, I would also use a wall thermostat to measure air temp, the relay would be used to switch the UFH on and off.

The UFH and relay are connected using using mains power through a fused switch, how would I power the universal sensor?

#2

It takes a wide range of DC voltages so any wall wart power supply you’ve got that’s not being used should be fine.

#3

Will it not take power from the mains or the relay?

#4

if you read the manual there you can find the input and output voltages…
like tim says use a simple DC power supply
input is 9-30v DC
output can have max 36V DC / 24V AC
you can connect the powersupply to the mains

#5

The problem I have is that my current setup doesn’t have plug sockets near the fused spur that powers the UFH, I don’t really want to add sockets and have a DC PSU on display.

??? ???

#6

well then take the plug of the adapter and attach the mains input of that to the relais 220v input ?