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UT18D Voltage and Continuity Tester

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Specifications Range UT18D
Voltage (V) 6V 5V±1V
12V 8V±1V
24V 18V±2V
50V 38V±4V
120V 94V±8V
230V 180V±14V
400V 325V±15V
690V 562V±24V
Phase rotation test 57Vac~400Vac (3 phase)
Frequency: 50Hz~400Hz
Single lead (L2)
voltage detection
Operating voltage: 100V~690V
Frequency: 50Hz~400Hz
Continuity test Resistance: 0Ω~100kΩ (+50% accuracy)
Beeper and LED light indication
RCD test Operating voltage: 230V (50Hz~400Hz)
Polarity detection Positive & Negative
Self-inspection All LED or LCD
Voltage indication LCD
Exceed voltage Voltage range: 713V~788V
Auto standby Standby current<10μA
Slient mode All range
Work light
Low battery indication Around 2.5V
LCD backlight
LCD display (voltage) 6V~690V ±(1.5%+5)
LCD display (Frequency) 40Hz~400Hz ±(3%+5)
General Characteristics
Power 1.5V battery (R03)×2
Display 73.5mm x 35.5mm
Product color Red and grey
Product net weight 280g
Product size (W x H x D) 272mm x 85mm x 31mm
Standard accessories Batteries
Standard individual packing Blister, English manual


UT18D Voltage and Continuity Tester
UT18 series are designed for testing AC/DC voltage, 3-phase voltage, phase sequence, continuity, and more. This series is categorized as CAT IV 600V and meets IP65 standards. These voltage testers are perfect tools for electricians to quickly measure voltage levels in all environments. This series should NOT be used with 110V electrical systems.
  1. Auto power off, the conductor to be measured is greater than 12V
  2. Phase rotation test
  3. Continuity test with buzzer and LED indication
  4. Low battery indication and over-voltage prompt
  5. Flashlight
  6. Test live voltage without batteries
  7. Buzzer and silent modes available
  8. Auto range
  9. Polarity indication


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