Are You Being Electronically Spied on Without Your Knowledge? This is the perfect solution for anyone who is concerned that they might be a subject of covert surveillance. Rest assured that no one's listening in on your private conversations or keeping watch on your comings and goings. The Professional Digital RF Detector can detect and help you to pinpoint wireless transmitters within range. What makes this RF detector superior to most others on the market is its ability to differentiate between different types of transmitter. It uses a separate channel frequency pre-selector to locate Bluetooth and WiFi sources and processes a demodulated signal to identify the transmission protocol being used. This means that a user can find and detect more types of transmitter, at a greater range, and with more detailed information than with a typical bug sweeper. Detects - Bluetooth, Wi-Fi, DECT, GSM, and RF. Weight 1.00. Unit Size 2.75 x 4.75 x .75. Operation up to 20 hours. Power 2xAAA. Frequency range, Antenna #1: 40MHz - 4Ghz. Antenna # 2: 2.44 GHz Main antenna 50MHz - 12GHz Wider coverage, particularly at lower frequencies, has made it possible to increase the detection distance of a conventional VHF/UHF bug by 2-3 times, while saving perfect sensitivity at the higher bands (GSM, Wi-Fi, Bluetooth, etc.) Anntena 2 1.4-2.48 GHz and 4.9-5.875 GHz This is the first time when an affordable RF detector gets the microwave log-periodic directed antenna supplied in the standard set. 2-4 times longer distance to all sources above 2GHz (Wi-Fi 2.4GHz, Wi-Fi 5GHz, Bluetooth, Wi-Max, LTE High, etc.). The directionality provides easy pinpointing of a wireless source. Now you not only know that there is a Wi-Fi source, but can quickly pinpoint it. Increased sensitivity to Bluetooth/Wi-Fi signals allows the operator to detect wireless sources at distance of 50 cm- 2 m