Residual Current Device (RCD) Test & GFCI TestTest the reliability of residual current device (RCD) and response action time and test the reliability of GFCI action and response action time. The circuit liquid crystal analyzer has a backlight function and a data HOLD function. Powered by 6 *AAA batteries. Please note that due to the control of air transportation, this product does not contain batteries.
Reliable Customer Service & WarrantyOut of the box you can rest assured of the Circuit Analyzer and just enjoy 3-Year Warranty provided by. If you have any questions, please contact us through Amazon internal information. We attach great importance to the buyer experience and will solve the problem for you in a timely manner.