Insulation Check values: 0.5MΩ, 2MΩ, 200M&Omega Insulation 1% (2% @ 200MΩ) Continuity Check values: 0.5Ω, 1Ω, 2Ω Continuity Accuracy: 1% +/- 20mΩ The Socket & See IRC CHECK Calibration Checkbox offers a reliable and straightforward solution for verifying the accuracy of insulation and continuity testers on site. This compact device uses precision-engineered 2% resistors to ensure your tester is calibrated correctly, providing peace of mind during routine checks and maintenance. Effortless Integration and Use Equipped with universal 4mm lead terminals, the IRC CHECK seamlessly integrates with nearly all standard insulation and continuity testers, including multifunction testers. For added convenience, it features a ‘null’ option to eliminate the resistance of the test leads themselves before performing continuity tests. This feature is particularly useful for professionals looking to achieve highly accurate results. Designed for Portability Small and robust, the IRC CHECK is designed to be portable and fits easily into any toolbox or bag. Its durable construction ensures it can withstand the rigours of daily use in a variety of environments, from industrial sites to residential settings. Key Features Precision 2% resistors enhance testing accuracy Universal 4mm terminals compatible with most testers Supports both insulation and continuity checks Null feature to compensate for lead resistance Compact and robust for easy portability Ideal for use with multifunction testers Includes common continuity check values: 0.5Ω, 1Ω, 2Ω Insulation check values include: 0.5MΩ, 2MΩ, 200MΩ Suitable for testing up to 1000V installations Continuity accuracy detailed at 1% +/- 20mΩ Technical Specifications Insulation Checks: Values: 0.5MΩ, 2MΩ, 200MΩ Accuracy: 1% (2% at 200MΩ) Voltage Rating: Up to 1000V Continuity Checks: Values: 0.5Ω, 1Ω, 2Ω Accuracy: 1% +/- 20mΩ Current Rating: 1A What’s Included 1 x Socket & See IRC CHECK Calibration Checkbox