Sniff It 2: * Detects AC voltage without making contact * Variable sensitivity, from 5 to 600 Volts AC * Light flashes and beeper chirps when AC voltage is present * Flashes and beeps faster as AC voltage is approached * Economical, non-contact probe is safe and simple to use * Pocket-sized * Power beeper reminder * Powered by 1 A23 battery (included) * Tests for AC voltage on: outlets, light bulb sockets, extension cords, appliances, power tools, circuit breakers, AC motors, video surveillance camera power, telephone and cable, light switches and house trailer siding * Detects power line voltage: 120, 220, 480 and 600V * Detects control voltage: 12 and 24V * Identifies the "hot" side of AC receptacles * Finds and traces electrically "live" wires or objects inside walls * Determine if metal surfaces are "live" or "ground" * Detect presence of high voltage electric fields * Detect "ringing" telephone lines * 1-year warranty