Piggyback factory water temp sensor for new gauge

[Roadrunner]

This may be more effort than it's worth, but though I'd ask anyway.
Since installing the Adaptronic there's zero info through the OBD that I was using to monitor water temp. I was expecting this so have been sizing up options for gauges.
One option is directly replace the NB water temp gauge with a speedhut water temp gauge (looks very similar to the factory gauge and with a warning light, so ideal)

But would it be possible to wire the speedhut sensor wires straight to the water temp screws on the back of the cluster circuit board?
Saves having to run a new sensor and wires and using this will be the exact same coolant temp that the ecu is seeing.
I would need to work out which speedhut wires are signal, power and earth which shouldn't be too hard. There's three screws holding the factory gauge in place to the printed circuit which have I believe, signal, earth and power (ign)

Thoughts?

[Nevyn72]

Thoughts?

Calibration? ie. Speedhut uses different voltage and/or current values......

Better to use the supplied sender despite the hassle of finding somewhere to mount it.

[Roadrunner]

Ahh that's the advice I needed. Just looked up sensor voltage differences and yeah, that's going to be a bag of hurt trying to make that work.

Thanks

[greenMachine]

I have just shelled out for a set of three Speedhut gauges (WT, OT, OP) for the GM2, and I am planning on separate sensors, plus a real oil pressure warning light. Part of the deal will be a remote oil filter, which will supply some ports, and a remote mounted op switch/factory op sensor. I have had a lot of grief over the years with problems that could have/ should have been picked up early, before disaster happened, and I would like to avoid that in the future.