This is what i use to watch the temperature, don't laugh it works good!
Just zip tie the probe on your pex pipe coming in and wrap it with a little insulation, then take the remote and set it on top of the fridge or wherever, mine is set so the alarm would go off if the temp gets to 185, batteries last a couple months, and you can tell at a glance what your OWB is doing...
New Maverick Black ET732 Wireless Dual 2 Probe BBQ Smoker Meat Thermometer | eBay
Just zip tie the probe on your pex pipe coming in and wrap it with a little insulation, then take the remote and set it on top of the fridge or wherever, mine is set so the alarm would go off if the temp gets to 185, batteries last a couple months, and you can tell at a glance what your OWB is doing...
New Maverick Black ET732 Wireless Dual 2 Probe BBQ Smoker Meat Thermometer | eBay