Uni-T UT18D Voltage and Continuity Tester

The Uni-T UT18D is a professional voltage and continuity tester designed for diagnosing electrical installations in demanding conditions. It measures AC/DC voltage from 6 V to 690 V, frequency from 40 Hz to 400 Hz, and performs continuity testing with audible and LED indicators. Additional features include phase rotation testing, single-wire voltage detection, RCD testing, polarity detection, and a self-test function.

• Voltage range: 6–690 V AC/DC with ±(1.5% + 5) accuracy
• Frequency measurement: 40–400 Hz with ±(3% + 5) accuracy
• Continuity test: 0 Ω – 100 kΩ with buzzer and LED indication
• Phase rotation test: 57–400 V AC, 3-phase, 50–400 Hz
• Single-wire voltage detection: 100–690 V, 50–400 Hz
• RCD test: 230 V, 50–400 Hz
• Safety: CAT IV 600 V, IP65 rated for dust and water resistance
• Display: Large backlit LCD (73.5 × 35.5 mm)
• Additional features: Flashlight, silent mode, auto standby, low battery indicator
• Power: 2 × AAA batteries (included)

Ideal for electricians and maintenance professionals, the UT18D combines robust construction with versatile functionality for safe and efficient electrical testing.