1. Auto power off when the conductor to be measured exceeds 12V.2. Phase rotation test. Continuity test with buzzer and LED indication.3. Low battery indication and overvoltage warning.4. Built-in flashlight. Test live voltage without batteries.5. Buzzer and silent modes available. Auto range. Polarity indication.Product Model: UT18D Voltage and Continuity TesterProduct Introduction:Waterproof voltage and continuity testing series products: Ideal for dark, humid, or rainy working environments requiring high testing safety. Sudden transient overvoltage can pose risks to users. With IP65 waterproof rating, built-in lighting, RCD testing, phase rotation testing, and other functions, this series meets maintenance and troubleshooting needs in harsh conditions.The UT18 series is designed for AC/DC voltage testing, 3-phase voltage detection, phase sequence verification, continuity checks, and more. Rated CAT IV 600V and compliant with IP65 standards, these testers are reliable tools for electricians performing voltage measurements in diverse environments. This series is not intended for use with 110V electrical systems.Type: Voltage and Continuity TesterSpecification: UT18DColor: As shownMaterial: ABSPackage Contents:1 x Voltage and Continuity TesterNote: The package includes only the items listed above. Other accessories are not included. Due to light reflection and display differences, the actual product color may vary slightly from the image. Measurement error allowance: +/- 1-3 cm.