UNI-T Digital Voltmeter Tester UT18B UT18D AC DC Voltage Continunity 690V LCD Display 3 Phase Sequence RCD Electrical Tester
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Specifications
- Brand Name
- UNI-T
- High-concerned chemical
- None
- DIY Supplies
- Electrical
- Origin
- Mainland China
- Voltage range
- 6-24V DC
- Battery Included
- No
- Dimensions
- 272mm * 85mm * 31mm
- Operating Temperature
- 0-40°
- Display Type
- Digital Only
- Power Supply
- Battery
- Certification
- CE, FCC
- Model Number
- UT18A/B/C/D
- Phase rotation test:
- 57-400V AC(3 phase)
- Continuity test:
- RCD test
- Polarity detection:
- Positive Negative
- No power test:
- Work light
- Voltage indication:
- LED
- Low battery indication:
- Around 2.5V
- LCD display (voltage):
- 6V~690V
- LCD display (Frequency):
- 40Hz~400Hz
Product Description
Specifications | Range | UT15B | UT15C |
LED AC/ Standard carton measurement 440mm × 395mm × 455mm (0.079CBM Per standard carton) Standard carton gross weight 17kg DC voltage indication (V) | 12V | 0~12V | 0~12V |
24V | 17V±2V | 17V±2V | |
50V | 35V±5V | 35V±5V | |
120V | 80V±15V | 80V±15V | |
230V | 165V±20V | 165V±20V | |
400V | 300V±30V | 300V±30V | |
690V | 510V±40V | 510V±40V | |
Phase rotation test | Operating Voltage: 0V~690V | √ | √ |
Frequency: 50Hz~60Hz | |||
Single lead (L2) voltage detection | Operating Voltage: 0V~690V | √ | √ |
Frequency: 50Hz~400Hz | |||
Continuity test | Resistance: 0~100kΩ | √ | √ |
Beeper and LED light Indicator | |||
Polarity detection | Positive & Negative | √ | √ |
Features | |||
Water-proof (IP65) | √ | √ | |
Auto range | √ | √ | |
Work light | √ | √ | |
Low battery indication | Short circuit two leads, LED and beeper off when the bettery is low | √ | √ |
LCD AC/DC voltage display | 24V~690V | ±(3%+5) | |
General Characteristics | |||
Power | 1.5V battery (R03) × 2 | ||
Display | UT15C- 23mm × 12mm | ||
Product color | Red and grey | ||
Product net weight | 210g | ||
Product size (W x H x D) | 275mm × 51mm × 30mm | ||
Standard accessories | Batteries | ||
Standard individual packing | Blister, English manual | ||
Standard quantity per carton | 30 pcs | ||
Pros & Cons
Pros
- Multi-functional testing for voltage, phase rotation, RCD, and continuity
- Wide voltage measurement range up to 690V for versatile use
- LCD digital display for clear, easy-to-read results
- CE and FCC certified for safe professional and personal use
Cons
- Batteries are not included in the package
- Only operates within 0-40°C, not suitable for extreme temperatures
- Conflicting measurement range details between product specs and description
- Bulky dimensions of 272mm * 85mm * 31mm for portable use
Common Questions
What voltage ranges can this digital voltmeter tester measure?
It measures LCD display voltage from 6V to 690V, 3-phase AC voltage from 57-400V, and 6-24V DC voltage.
What additional testing functions does this tester have besides voltage measurement?
It also performs phase rotation tests, RCD tests, continuity tests, and polarity detection.
Is a battery included with this electrical tester?
No, batteries are not included with the product.
What certifications does this tester hold?
This tester has CE and FCC certifications for safety and compliance.
What is the operating temperature range for this tester?
It can operate safely at temperatures between 0°C and 40°C.
Product information last updated on November 20, 2025