The 3153 is manufactured by Hioki E.E. Corporation. It is an electrical safety test instrument series, that is designed for insulation resistance (500/1000 V), and voltage withstand testing of electrical devices (500 VA), and components according to various safety standards.
The device can store up to 10 sets of each test conditions. It also has an electrical discharge function, automated testing support, and interlock protect function. As options, it can be also supplied with a remote control, high voltage scanner, safety test data management software, GP-IB network cable, etc.