UNI-T UT533 insulation resistance meter multimeter

The UNI-T UT533 is an insulation resistance tester that combines a classic true RMS digital multimeter with an insulation tester capable of voltage measurements up to 1000 V. It measures AC and DC voltage, AC/DC current, resistance, capacitance, frequency and temperature, making it suitable for industrial and laboratory work as well as electrical installations at home.

Insulation resistance can be measured up to 2 GΩ with test voltages from 50 to 1000 V. This allows cables, motors and electrical equipment to be checked effectively, spotting potential damage before it leads to a failure. The RMS function delivers accurate readings even on distorted signals.

The large backlit display with 5999 counts stays easy to read in low light. A dual display shows two readings at the same time, which simplifies comparing results. Functions such as HOLD, MAX/MIN and automatic power-off add convenience and safety during use. The meter complies with CAT III 1000 V and CAT IV 600 V safety standards and features double-insulated housing.