The CheckBox 16 Plus is a convenient installation instrument check point. It is a versatile compact instrument which is designed to provide a convenient checkbox for installation test instruments including Earth Loop Testers, Insulation Continuity Testers and RCCB Testers.
The CheckBox 16 Plus provides a convenient and simple method of confirming the functionality and accuracy of Installation Tester readings as required for NICEIC inspections. The CheckBox 16 Plus checks all Seaward and most other manufacturer's installation test instruments.