Wouldn't buy this again as a good digital multimeter will accomplish the same thing if you have one. Simply check all resistances with regularity as you proceed with the installation.
seems to work great.
As an electrical contractor, I've installed several heated floors from various suppliers. Thought I'd try your product in one of my own homes because of the price. The tile installer was quite pleased and so am I.
I didn't find this necessary if you have a multi-meter available.
The unit is simple and effective.
The circuit check eased our minds during installation. Great product.
Thank goodness for this checker. My tile installer opened the wire and stopped got me and I found the open repaired and he got back to work quickly.
Easy to use.
I have only tested the unit so far. It's been A/C weather lately, but the units will definitely get their workouts soon. I would be happy to review them at that time