UNI‑T UT18C Voltage & Continuity Tester

The UNI‑T UT18C is a professional‑grade voltage and continuity tester designed for electricians and service technicians. It handles AC/DC voltages from 12 V up to 690 V, supports phase‑rotation testing, continuity checks (0‑100 kΩ), RCD testing, and meets the safety rating CAT IV 600 V / IP65 for harsh environments. :contentReference[oaicite:1]{index=1}

Key Features

• Wide voltage range: Measures AC/DC voltage at 12 V / 24 V / 50 V / 120 V / 230 V / 400 V / 690 V. :contentReference[oaicite:2]{index=2}
• Phase‑rotation (three‑phase) test: Works from ~57 V to 400 V, 50–400 Hz. :contentReference[oaicite:3]{index=3}
• Continuity & resistance test: Range 0‑100 kΩ with buzzer + LED indicator. :contentReference[oaicite:4]{index=4}
• RCD (Residual Current Device) test support: Test at ~230 V / 50–400 Hz. :contentReference[oaicite:5]{index=5}
• Single‑lead voltage detection (L2): Detects voltage from 100 V to 690 V, 50–400 Hz. :contentReference[oaicite:6]{index=6}
• Safety & durability: Rated CAT IV 600 V, IP65 water/dust‑resistant. :contentReference[oaicite:7]{index=7}
• Additional features: Auto standby (<10 µA), over‑voltage warning (713–788 V), silent mode option, built‑in work light. :contentReference[oaicite:8]{index=8}

Specifications (Selected)

• Voltage measurement accuracy: For example: 230 V → 180 V ± 14 V. :contentReference[oaicite:9]{index=9}
• Display/Indicators: LED indicators for predefined voltage levels; back‑lighting and LCD element for some ranges. :contentReference[oaicite:10]{index=10}
• Dimensions & weight: ~272 × 85 × 31 mm; net weight ~280 g. :contentReference[oaicite:11]{index=11}
• Power supply: 2 × AAA (R03) 1.5 V batteries. :contentReference[oaicite:12]{index=12}
• Operating environment: –15 °C to +45 °C typical for UT18 series. :contentReference[oaicite:13]{index=13}

Why Choose It?

• Designed for professional electrical work—especially in industrial or commercial settings with three‑phase systems and safety rating CAT IV 600 V.
• Combines multiple test functions (voltage, phase‑rotation, continuity, RCD) into one compact instrument—ideal for service engineers, maintenance techs or electricians.
• Rugged construction with IP65 rating means it can handle dusty or damp environments. Built‑in work light and silent mode add convenience on the job site.

Keywords

UNI‑T UT18C, voltage tester, continuity tester, phase sequence tester, CAT IV 600V, IP65 electrical tester