Model : 5406A Digital RCD (ELCB) Tester Brand : Kyoritsu Dimension : 167 (L) × 186 (W) × 89 (D) mm Custom Microprocessor Controlled For Highest Accuracy and Reliability 3 LEDs for Checking Correct Wiring Status 0 and 180 Degree Phase Angle Switch Permits Quick Tests and Consistent Readings Digital Read-Out of Tripping Time Test of A Large Kind of RCD's : Standard, Selective, AC and DC Sensitive Breakers