Calibration Verification Check Box 

The Socket and See CB400AU truly is the ultimate installation testing calibration verification check box. By using the CB400AU you can be assured that your test equipment is operating correctly ensuring that your certification is always accurate. This unit works with all leading makes of Loop, Insulation/Continuity and RCD Testers, both multi function and single operation.

Product Features

Non-trip RCD testing method.
Continually validate instruments through regular self-calibration checks.
Reduces expensive calibration costs.
Null facility to remove lead resistance.
Six Insulation check levels (Plus checks installation testing correct output).
Five Continuity check levels (Plus checks installation testing correct output).
Three Loop check levels.
Five checks covering 30mA and 100mA RCD’s.
Checks RCD over current test.
Tough drop-proof watertight case.
Full calibration documentation.

Included Accessories

Socket & See CB400AU
IEC Plug to 3 Pin Power Lead
Pair of 4mm Test Leads
Calibration Certificate

Product Specifications