Enables user to trace & locate potential services below ground, including electric cable, gas & water pipes. 3 position function select switch. Sensitivity control for accurate pinpointing. Detachable and user replaceable loudspeaker. User replaceable base protector. Moisture & rust resistant. SPECIFICATION: Detection depth effectiveness in optimum conditions. Power Mode:3 metres. Radio Mode:3 Metres. Generator Mode:3 Metres. 8 x AA Batteries (not included). Life - 40 Hours intermittent use. Weight:3kg.