Why do I need to use a LoudMouth and an ohm meter to check the blue wire during installation?
Although the wire is extremely tough, it can be damaged during installation. The culprit is often another trade, but it can be the sharp edge of a trowel. When you open your SunTouch box, there is a label that shows the resistance of the mat wire (each length is different). You need to measure this value with a digital ohm meter before you begin work and when you are finished, and log the readings in your installation manual. During the job, however, you should hook up the LoudMouth which does not give you a resistance value, but does sound an alarm if that value changes suddenly. These two devices work very well together and give you peace of mind during the entire installation. Warm Your Floor offers a low cost Digital Ohm meter if you do not own one.
