• Custom microprocessor controlled for 
highest accuracy and reliability. 
• 3 LED 's for checking correct wiring status. 
• 0 and 180 degree phase angle switch 
permits quick tests and consistent readings. 
• Digital read out of tripping time. 
• Large custom digital display readout 
on all models. 
• Visual indication of reversed phase and 
neutral wring at socket. 
• Resilient case made from modern plastics 
to take everyday knock and brings.