DIY Supplies: Electrical Accuracy Class: 0.1, designed to check the phase sequence. Features LEDs to indicate open phase conditions and supports buzzer indication. Highly reliable, capable of testing AC three-phase voltage from 60V to 600V. Equipped with alligator clips for easy connection to control panel terminals, ensuring reliability and safety. Compact, lightweight, and portable for convenient use. Operating Voltage: 60V~600V AC, three-phase. Withstand Voltage: 2000V/minute (Impulse voltage 4000V). Operating Frequency Range: 20Hz~400Hz. Maximum Continuous Use Time: 60 minutes at 200V AC, 4 minutes at 600V AC. Phase Sequence Indicator: Green LED for correct phase sequence with intermittent beep; Red LED for reverse phase sequence with continuous beep. Test Leads: Double insulated, approximately 80cm cable length. Color Coding: Yellow for U phase (L1/R), Green for V phase (L2/S), Red for W phase (L3/T). Net Weight: 136g. Color: As shown in photo. Material: Plastic. Dimensions: 8 x 6 x 2.4cm. Package Contents: 1 x 3 Phase Sequence Tester, 3 x Alligator Clips, 1 x Pouch, 1 x User Manual. Note: Light shooting and different displays may cause slight color variations between the item and the image. Measurement error allowance: +/- 1-3cm.