The GPT/GPI-800 Series Safety Tester series offer an economical solution for the most frequently used electrical safety requirement, the AC withstanding test. The GPT/GPI-800 Series provide a reliable and accurate test environment for the operator through a number of safety-oriented features, such as a zero turn-on switch, remote control functions, and a PASS/FAIL signal output. In addition to the basic AC Withstanding test, the GPT-815 also features DC Withstanding testing and the GPI-825/826 feature Insulation Resistance testing. With a 500VA of AC capacity for the GPT-805/815 & GPI-825, there is ample headroom for testing a wide range of electrical equipment and components. The simple and robust GPT/GPI-800 Series can be used effortlessly in almost any real world application.