CP-S Synchroscope indicator show the status of phase difference and frequency difference between two power generator or power system. When the voltage and frequencies in between power generator and network is consistency, rotation of LED Roulette will be slowed down until the SYNC LED is on. Both system can be synchronized and connect the generator to the power network. FEATURES M4 screw connections with clamps make this easier Clamping the connecting wires. Housing use matiral match UL94V-0 standard All fastenings suitable for shaking and shock resistance.