| Description The Megger 1000-435 is a calibration check box with a resistance of 25 ohms. It is designed specifically for verifying the performance of Megger DET3T and DET4T series earth testers. | 
| Key features Calibration check:- The box allows you to quickly and easily check if your earth tester is performing within its specified accuracy. Accuracy assurance: It confirms the reliability of your earth resistance measurements, ensuring the integrity of your electrical safety checks. Compatibility: It is compatible with DET3T and DET4T series ground resistance meters. To perform a calibration check using the 1000-435:- Connect the Megger earth tester to the 1000-435 calibration check box according to the instructions in the manual for your specific DET3T or DET4T model. Run the test on your earth tester. The tester should read approximately 25 ohms, confirming its accuracy. |