Features Multifunctional Testing Capabilities: Detect open phases and phase sequence using LED and buzzer alerts for comprehensive electrical diagnostics Wide Frequency Range: Operates between 20Hz and 400Hz with clear LED indicators, ensuring it meets diverse testing requirements Reliable and Efficient Performance: Provides fast, accurate measurements, making it a dependable tool for both professionals and DIY enthusiasts Durable Construction: Crafted from lightweight, wear-resistant ABS material, ensuring longevity and resilience in various working conditions User-Friendly Design: Features a specialized test clip for easy attachment, allowing for convenient measurements in hard-to-reach areas Features: 1、Multifunction: It can detect the state of the open phase and the sequence of the phases through LED and buzzer 2、Frequency Range: 20Hz to 400Hz, equipped with red, green, yellow LED indicates the buzzer, which can meet the needs of daily work 3、Stable Performance: Fast and accurate measurement, efficient, effective, reliable, easy and safe to use 4、Good Material: Made of ABS material, lightweight, wear resistant and resistant, and have a long service life 5、Convenient to Use: Equipped with a special test clip, insert the test clip on the metal probe of the test lead and tighten it, then it can be conveniently clamped anywhere for measurement Specification: Item Type: 3 Phase Rotation Tester Material: ABS Maodel: SM852B Working Voltage: 60~600V (3 phase alternating current) Purpose: 3 phase alternating current measurement Maximum Withstand Voltage: 2000v/min (pulse voltage 4000v) Measurable Frequency Range: 20Hz~400Hz Continuous Use Time: no more than 60 minutes at 200V ACV, no more than 4 minutes at 600V ACV Package List: 1 x 3 Phase Rotation Tester 3 x Clip 1 x Manual 1 x Portable Cloth Bag Note: betweendiv>1. It is high voltage test equipment. Before use, observe whether the meter is in good condition. If the following conditions occur, stop using it, and perform corresponding inspections and repairs to avoid electric shock and unsafe accidents. A: The appearance is obviously damaged (such as cracks or damage in the shell, broken skin on the test lead); B: It was severely squeezed during transportation; C: It has been idle for a long time under improper conditions (such as in the bathroom or a relatively humid place).between/div>betweendiv>2. Never open the case during the measurement process to avoid electric shock and unsafe accidents.between/div>betweendiv>3. During the measurement Package List 1 x 3 Phase Rotation Tester 3 x Clip 1 x Manual 1 x Portable Cloth Bag