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DC 12V To AC 220V Car Inverter Dual Socket 4USB

UNI-T UT18E voltage and continuity testerUNI-T UT18E voltage and continuity tester is a practical tool for quick diagnostics of electrical installations. It allows you to measure AC/DC voltages up to 1000 volts, test phase sequence, circuit continuity and operation of residual current circuit breakers. It is convenient to use and at the same time provides a clear reading both on the LCD screen and with backlit LEDs.Universal voltage measurement rangeThe UT18E supports up to 8 voltage levels: 6V, 12V, 24V, 50V, 120V, 230V, 400V, 690V and 1000V. It operates in both AC and DC modes, which makes it suitable for various types of installations - from domestic to industrial. The automatic polarity recognition function further helps avoid errors when diagnosing DC circuits.Continuity measurement and RCD testThe tester allows you to check the continuity of a circuit in the range of 0 Ω to 60 kΩ, and the built-in audible signal and LED light indicate that the current is flowing correctly. The UT18E also allows you to test residual current devices (RCDs) at 230 V and 50-400 Hz, which increases the safety of the installation's use.Additional functions to make work easierLCD display indicates voltage in the range of 6-1000 V, and frequency in the range of 40-400 Hz. A built-in flashlight, audible signal, automatic shut-off function and silent mode make the UT18E a convenient tool. The tester is IP65-rated, which means dust and splash resistance - it will work well in construction and industrial conditions. Manufacturer UNI-T Model UT18E Voltage range (AC/DC) 6V ± (1.5%＋1); 12V ± (1.5%＋2); 24V ± (1.5%＋2); 50V ± (1.5%＋3); 120V ± (1.5%＋4); 230V ± (1.5%＋5); 400V ± (1.5%＋5); 690V ± (1.5%＋5); 1000V ± (1.5%＋5) Phase rotation test 100V ac～400V ac (3 phases); frequency 50/60 Hz Continuity test Resistance: 0Ω~60kΩ; sound and light indicator RCD test Operating voltage: 230V (50~400 Hz) Polarity detection positive and negative Self-verification LED or LCD Power failure test 100~1000V Standby current ＜10μA Backlighting Yes Silent mode Yes Overvoltage protection Yes, 1100 V Low battery indicator Yes (approx. 2.4V) LCD display (voltage) 6V~1000V LCD display (frequency) 40 Hz ~ 400 Hz Waterproof IP65 Weight (with batteries) 277 g Dimensions 272 x 85 x 31 mm