X10 Pro Signal Test Receiver

TEST EQUIPMENT FOR SIGNAL STRENGTH OR NOISE LEVELS: These devices help installers test the design and setup of any X10 system for reliability. The Transmitter (XPTT) - sold separately - sends a continuous X10 command signal transmission from the location where it is plugged in. The Receiver (XPTR) measures the strength of X10 command signals throughout the home. These devices simply plug-in and are recommended for testing all X10 PRO installations.