Socket & See IRC Check Calibration Checkbox
Verify Your Tester‘s Accuracy with the Socket & See IRC Check Calibration Checkbox
The Socket & See IRC Check Calibration Checkbox is a compact verification device designed to help electricians and electrical contractors quickly confirm the accuracy of their insulation resistance and continuity testers before carrying out testing work.
Whether you‘re performing electrical installation testing, inspection work, or routine maintenance, the Socket & See IRC Check provides a fast and reliable way to verify that your test instrument is operating within expected parameters. By checking your tester against known resistance values, you can increase confidence in your readings and reduce the risk of inaccurate results on site.
Built using precision resistors and housed in a durable enclosure, the Socket & See IRC Check Calibration Checkbox is small enough to keep in your tool bag, making it ideal for daily use on commercial, industrial and domestic installations.
▶ Watch the Socket & See IRC CHECK Calibration Checkbox in Action

Why Use a Calibration Checkbox?
Electrical test equipment can experience drift, damage, or lead resistance issues over time. A calibration checkbox allows you to perform a quick functional check before and during testing, helping ensure your insulation and continuity measurements remain trustworthy.
The Socket & See IRC Check enables users to:
- Confirm continuity tester performance using known resistance values
- Verify insulation resistance measurements before testing installations
- Check test equipment performance between formal calibration intervals
- Identify potential tester or lead issues before carrying out certification work
- Increase confidence in compliance and inspection results
Key Features of the Socket & See IRC Check
- Verifies insulation resistance measurements at 0.5MΩ, 2MΩ and 200MΩ
- Verifies continuity measurements at 0.5Ω, 1Ω and 2Ω
- Compatible with most insulation resistance testers, continuity testers and multifunction installation testers
- Universal 4mm connection terminals for easy tester connection
- Supports test lead nulling for improved continuity testing accuracy
- Manufactured using precision 2% resistors
- Compact, lightweight and durable design
- Suitable for use on site, in workshops and during commissioning work
- Supplied with a Certificate of Conformity
Designed for Professional Electricians
The Socket & See IRC Check Calibration Checkbox is an essential addition to any electrician‘s toolkit. Its rugged construction and portable design make it ideal for carrying between jobs, while the straightforward operation allows quick verification checks without interrupting your workflow.
For professionals who rely on accurate insulation resistance and continuity measurements, the Socket & See IRC Check provides a simple and effective method of confirming tester performance before critical testing tasks.
Technical Specifications:
Insulation Resistance Verification
- Check Values: 0.5MΩ, 2MΩ, 200MΩ
- Accuracy: 1% (2% at 200MΩ)
- Maximum Voltage Rating: 1000V
Continuity Verification
- Check Values: 0.5Ω, 1Ω, 2Ω
- Accuracy: 1% ±20mΩ
- Current Rating: 1A
Applications:
The Socket & See IRC Check is ideal for:
- Electrical Installation Condition Reports (EICRs)
- Electrical installation testing
- Commissioning and verification work
- Maintenance inspections
- Contractor testing kits
- Periodic inspection and testing
- In-house verification of insulation and continuity testers
When accuracy matters, the Socket & See IRC Check Calibration Checkbox provides a convenient way to verify your test equipment and maintain confidence in every measurement.
❓ Frequently Asked Questions (FAQ)
Q1: What is a calibration checkbox?
A. A calibration checkbox is a device used to verify that an insulation resistance tester, continuity tester, or multifunction tester is providing readings within expected values. It allows electricians to quickly check their test equipment before carrying out electrical testing and inspection work.
Q2: What is the Socket & See IRC Check used for?
A. The Socket & See IRC Check is designed to verify insulation resistance and continuity readings using known resistance values. It helps users confirm that their tester is operating correctly between formal calibration intervals and before critical testing tasks.
Q3: Can the Socket & See IRC Check replace tester calibration?
A. No. The Socket & See IRC Check is intended as a verification device and does not replace formal calibration by an accredited calibration laboratory. It provides a quick on-site confidence check that your tester is functioning correctly.
Q4: Which testers are compatible with the Socket & See IRC Check Calibration Checkbox?
A. The Socket & See IRC Check is compatible with most insulation resistance testers, continuity testers, and multifunction installation testers that use standard 4mm test leads.
Q5: What resistance values can the Socket & See IRC Check verify?
A. The IRC Check can verify insulation resistance readings at 0.5MΩ, 2MΩ and 200MΩ, as well as continuity readings at 0.5Ω, 1Ω and 2Ω.
Q6: Why should electricians use a calibration checkbox?
A. Using a calibration checkbox helps electricians identify potential issues with their test equipment before carrying out inspections, EICRs, or installation testing. This can improve confidence in test results and help reduce the risk of inaccurate measurements.
Q7: Can I use the Socket & See IRC Check on-site?
A. Yes. The Socket & See IRC Check has been designed as a compact and robust unit that can easily be carried in a tool bag or test equipment case, making it ideal for on-site verification checks.
Q8: Does the Socket & See IRC Check come with certification?
A. Yes. The Socket & See IRC Check is supplied with a Certificate of Conformity, confirming that the unit has been manufactured and tested to specification.