Feature: Phase sequence detection, live line check, simple power check, live wire identification, phase loss judgment, wire break position search, DC line break point detection, line maintenance. Clamp-type non-contact inductive measurement, no need to open the wire, no need to touch the high-voltage exposed fire wire, directly sandwich the three super-inductive high-insulation clamps to the insulation skin of the three-phase live wire to detect the phase sequence. Non-contact inspection for safe and fast productivity. The dynamic sound and light indicates the positive or negative phase of the phase sequence of the three-phase power supply, which is clear at a glance. The bottom plate of the instrument is equipped with 4 magnets, which can be attached to the metal casing of the equipment during testing, and the operation is convenient and convenient. Specification: Model ETCR1000C Functions Phase detection (Positive phase, reverse phase and phaseloss), Live wire examination, Simple Power detection, Breakpoint location and Line maintenance. Power Supply DC 3V2*AA Alkaline dry battery , Continuously working for 70 hours AC Voltage Range(V) AC 70 - 1000V, 40/65Hz (Sine Wave Continuous Input) Clamp Wire Size External Diameter 1.6-16mm LED Display (Positive Phase Sequence) The four phase-sequence lamps light in order (clockwise). (Negative Phase Sequence) The four phase-sequence lamps light in order (counterclockwise). (Live Power)L1,L2,L3 lamp light up in the voltage setting range. (Phase Loss) L1 or L2 or L3 does not light. (Short Circuit)L1 or L2 or L3 does not light. Buzzing (Positive phase) The instrument emits intermittent short beeps; (Reverse phase) The instrument emits a continuous long beep. Power On Indication Power on indication light turns on; Low power, low battery light on Magnetic force Four magnets on the back of the meter, which are attached to the distribution box and can withstand 800g quality. Auto Power off After 5 minutes, the meter automatically cut off power supply. Meter Dimension Width, height, thickness 70mm*75mm*30mm Clamp Lead Length 0.6m Weight 317g Working Temperature and Humidity -10-55; below 80%rh Storage Temperature and Humidity -20-60; below 90%rh Maximum Measured Voltage AC 1000V Dielectric Strength 5.4kVrms Maximum rated Power 100mVA Safety Provisions EN61010-1: 2001, EN61010-031: 2002, Pollution level 2, CAT 3 (600V), Transient over-voltage 6000V Package list: 1 * Non-Contact Phase Sequence Detector 1 * User Manual Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product.