Profile: Research Electronics International is a manufacturer of electronic countermeasure equipments. Our product line includes borescopes, junction detectors, portable noise & acoustic noise detector and counter measure amplifiers. Our borescope kits are equipped with 0 degree direction-of-view, 90 degree mirror tube, mini-maglite light source, two AA alkaline batteries and lockable metal case with key. The countermeasures amplifier (CMA-100) is a high gain audio amplifier used to detect & identify certain types of surveillance devices attached to building wiring such as telephone wiring, LAN & server systems, AC power and alarm wire.