Spytec iProtect 12031 High Frequency Portable Bug Detector with 1 Year Warranty, Detects Analog and Digital Devices Reliable and tested device for different sweeping tasks | Detect both analogue and digital transmissions Allows the operator to locate the source | 10-segment indicator of RF level | Frequency range 306000 MHz Vibrating signal for concealed indication of a high RF level Adjustable sensitivity Durable duralumin case | Powered by 2 AAA batteries | High sensitivity Applications: Searching for active radio transmitting surveillance devices (or RF bugging devices) in premises, vehicles and items.| Room, body-carried, telephone and car bugging devices can also be found by the device.| Detecting of harmful emissions from the GSM-jammers or mini recorder suppressors | Detecting of harmful emissions from microwave ovens, communication antennas and other electronic appliances