The K8035 Non-Contact Safety Phase Indicator technology permits safe testing of phase rotation without the need to expose live contacts. The unit requires no metal contact ideal for safer and faster testing. Super bright mode gives clear indication even in bright sunlight. K8035 uses a combination of LED and audible tones to indicate phase direction. Green LEDs are used for clockwise direction with an intermittent tone. Red LEDs are used for anti-clockwise direction with a continuous tone. The tester is suitable for a wide range of 3 phase installations from 70V to 1000V AC. It comes with a magnetized back for attachment to a metallic surface for hands-free testing. Accessories: Carrying Case AA Batteries Instruction manual COC