Equipped with a carrying bag, this digital phase detector is convenient for you to take. With alligators clips, this digital phase detector can easily involve the terminals of the control panel for guaranteeing reliability and safety. It is constructed of ABS material. The length of this product is 8cm, width is 6cm and the height is 2.5cm. The length of the test pen and cable is 80cm. It is designed to check the phase sequence and indicate the phase is open or not. And it can check 60V to 600V AC three-phase voltage. With LED light and the support of buzzer indication to show if the phase is open or not. : Phase Detector Item Name: Phase Detector Material: ABS Model: SM852B Operation Voltage: 60V-600V AC Three Phase Limit Support Voltage: 2000V/Minute (Impulse Voltage 4000V) Operation Frequency Range: 20Hz-400Hz Limit Time for Continuous Use: 60 Minutes Maximum at 60V AC 4 Minutes Maximum at 600V AC Phase Sequence Indicator LED: Green for Correct Phase Sequence, Intermittent Beep Red for Reverse Phase Sequence, Continuous Beep Test Pen and Cable Length: 80cm Test Leads: Red Corresponds to U (R) Phase (L 1, R) Yellow Corresponds to V (Y) Phase (L2, S) Green Corresponds to W (B) Phase (L3, T) Features: Portable, Safe, Wide Voltage Test Size Details: Phase Detector Size: 8cm x 6cm x 2.5cm/3.15" x 2.36" x 0.98" (Approx.) Test Pen and Cable Length: 80cm/31.5" (Approx.) Notes: Due to the light and screen setting difference, the item"s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Phase Detector 3 x Alligators Clips 1 x Carrying Bag 1 x User Manual