Uni-T UT15B is a rugged tester for quick checks of AC/DC voltage and circuit continuity in the field and in the workshop. Thanks to LED indication, automatic range selection, and IP65 protection, it handles everyday work in demanding conditions and makes installation diagnostics easier without complicated setup.
This Uni-T UT15B voltage and continuity tester is designed for electricians and maintenance staff who need fast, easy-to-read results. The instrument shows values via clear LED levels for common voltage thresholds up to 690 V and automatically selects the range, so you can focus on the inspection itself.
UT15B combines multiple functions in one compact device:
- AC/DC voltage indication via LEDs (levels: 12 / 24 / 50 / 120 / 230 / 400 / 690 V)
- Continuity test with audible buzzer and LED
- Phase rotation test for quick verification of correct phase sequence
- Single-probe voltage detection (L2) for quick indicative checking
- Polarity detection (positive and negative)
Practical everyday details include a built-in flashlight for working in poorly lit areas and a battery status indicator (activated by shorting the test leads). This model has no LCD display – all important information is provided quickly and simply via LED indicators.
Specifications
- Manufacturer
- Uni-T
- Model
- UT15B
- Product type
- Voltage and continuity tester
- AC/DC voltage indicator (LED)
- Yes
- 12 V range
- 0~12 V
- 24 V range
- 17 V ± 2 V
- 50 V range
- 35 V ± 5 V
- 120 V range
- 80 V ± 15 V
- 230 V range
- 165 V ± 20 V
- 400 V range
- 300 V ± 30 V
- 690 V range
- 510 V ± 40 V
- Phase rotation test
- Yes
- Phase rotation test range
- 0 V~690 V, 50 Hz~60 Hz
- Single-probe voltage detection L2
- Yes
- Single-probe voltage detection range
- 0 V~690 V, 50 Hz~400 Hz
- Circuit continuity test
- Yes
- Continuity test range
- 0~100 kΩ
- Continuity test indication
- Audible signal + LED
- Polarity detection
- Yes
- Polarity detection type
- Positive and negative
- Protection class
- IP65
- Range switching
- Automatic
- Flashlight
- Yes
- Battery status indicator
- Yes
- LCD display
- No
- Power supply
- 2× 1.5 V batteries (R03)
- Weight
- 210 g
- Dimensions
- 275 × 51 × 30 mm
- Color
- Red and gray
