Uni-T UT18C voltage and continuity tester
The Uni-T UT18C is an advanced voltage and continuity tester designed for diagnosing electrical installations, equipped with a backlit LCD display and LED indicators that ensure quick and easy-to-read results. The device allows for AC/DC voltage measurement up to 690 V, frequency measurement from 40 Hz to 400 Hz, circuit continuity testing with audible and LED indicators, detection of positive and negative polarity, phase sequence testing, and voltage detection with a single probe. The UT18C model also offers an RCD test function, a self-test for operational integrity, and the ability to perform measurements without power in the 100–690 V range. Its rugged design, compliant with IP65 and CAT IV 600 V, a built-in flashlight, silent mode, and compact dimensions make this tester ideal for daily installation and maintenance work.
Included
- Voltage and continuity tester
- 2 AAA batteries
- User manual
Specifications
| Manufacturer | Uni-T |
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| Model | UT18C |
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| Product type | Voltage and continuity tester |
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| Voltage display | LED and LCD |
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| Voltage range | 12 V (8 V ± 1 V), 24 V (18 V ± 2 V), 50 V (38 V ± 4 V), 120 V (94 V ± 8 V), 230 V (180 V ± 14 V), 400 V (325 V ± 15 V), 690 V (562 V ± 24 V) |
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| LCD display | Yes |
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| LCD voltage range | 6–690 V |
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| LCD frequency range | 40–400 Hz |
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| LCD voltage accuracy | ±(1.5% + 5) |
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| LCD frequency accuracy | ±(3% + 5) |
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| LCD screen dimensions | 31 × 20 mm |
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| Phase rotation test | 57–400 V AC, 3-phase, 50–400 Hz |
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| Single-wire L2 voltage detection | 100–690 V, 50–400 Hz |
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| Continuity test | 0 Ω – 100 kΩ |
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| Continuity test accuracy | +50% |
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| Continuity test indication | Buzzer and LED |
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| RCD test | 230 V, 50–400 Hz |
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| Polarity detection | Positive and negative |
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| Self-test | Yes |
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| No-load test | 100–690 V |
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| Overvoltage protection | 713–788 V |
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| Silent mode | Yes |
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| Auto standby | <10 μA |
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| Flashlight | Yes |
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| Low battery indicator | Approx. 2.5 V |
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| Ingress protection | IP65 |
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| Measurement category | CAT IV 600 V |
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| Power supply | 2 × 1.5 V (R03) |
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| Weight | 280 g |
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| Dimensions | 272 × 85 × 31 mm |
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| Color | Red and gray |
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