Profile: PDA Electronics Ltd specializes in producing detection and location equipment and electronic countermeasure products. Our products include mobile phone detector, survellance unit, cellular phone detectors, 2G & 3G mobile phone detector, directional antenna system and networked surveillance systems. GSM185 mobile phone detector detects the presence of active GSM phones. It features quad-band operation, multiple range settings, digital filtering for signal isolation, LED received signal strength indication and cadenced vibration alert for covert operation. The SA918 antenna system is designed to enhance the detection capabilities of the GSM196 mobile phone detector. The lightweight assembly (approx 600grams) allows operators to more accurately pin point the location of an operational phone. The detection characteristics also allow the unit to reject unwanted signal reflections from other sources.