PASS Calibration Checkbox

No matter what type of electrical test equipment you're using, it is extremely important to ensure that your tester's accuracy is maintained in the period between official calibration procedures by a certified laboratory.

This portable, lightweight and extremely useful calibration checkbox is the easiest, cheapest and most convenient way to check your electrical test equipment for safety and ensure that drift has not occurred due to damage to the tester.

Compatible with all electrical test equipment, including multimeters, multifunction testers, RCD testers, voltage testers and much more, this checkbox can be used to test continuity from 0.5 to 10Ω and insulation from 0.5 to 50mΩ. With direct access to a socket, this calibration checkbox can also be used to test RCD and earth loop impedance.

We highly recommend using this checkbox both before and after testing procedures to ensure that your tester is in correct working order.

Calibration Checkbox Key Features

• Extremely small, portable design
• Clearly labelled colour coded ports
• Tests insulation, continuity, RCD and earth loop impedance
• Check your test equipment for ongoing accuracy
• Compatible with a wide range of electrical test equipment, including both analogue and digital meters