UNI-T UT18D Voltage and Continuity Tester
The UNI-T UT18D Voltage & Continuity Tester is a professional-grade electrical tester designed for electricians, maintenance technicians, and industrial users. It quickly tests AC/DC voltage, continuity, polarity, phase rotation, and RCD operation while providing a large backlit LCD display for easy reading.
Rated CAT III 690V and CAT IV 600V with an IP65 dust- and water-resistant enclosure, the UT18D is built for demanding environments. Additional features such as single-lead voltage detection, continuity buzzer, work light, polarity indication, and automatic self-test make it an essential diagnostic tool for electrical installation and maintenance.
Features:
- RCD Test Operating voltage of 230V (50Hz to 400Hz)
- Polarity Detection Positive & Negative
- Self-Inspection Full LED or LCD check
- Exceed Voltage Voltage range from 713V to 788V
- Auto Standby Power-saving mode with standby current < 10μA
- Silent Mode Functional across all ranges
- Work Light Built-in for low-light environments
- Low Battery Indication Triggers at around 2.5V
Specifications:
| Parameter | Value |
|---|---|
| Voltage (V) – 6V | 5V±1V |
| Voltage (V) – 12V | 8V±1V |
| Voltage (V) – 24V | 18V±2V |
| Voltage (V) – 50V | 38V±4V |
| Voltage (V) – 120V | 94V±8V |
| Voltage (V) – 230V | 180V±14V |
| Voltage (V) – 400V | 325V±15V |
| Voltage (V) – 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 |
| Silent Mode | All Range |
| Work Light | Yes |
| Low Battery Indication | Around 2.5V |
| LCD Backlight | Yes |
| LCD (Voltage) | 6V~690V, ±(1.5%+5) |
| LCD (Frequency) | 40Hz~400Hz, ±(3%+5) |
| IP65 | Yes |
| Power | 1.5V Battery (R03) × 2 |
| Display | 73.5mm × 35.5mm |
| Product Color | Red and Grey |
| Product Net Weight | 280g |
| Product Size (W x H x D) | 272mm × 85mm × 31mm |
| Standard Accessories | Batteries |
| Standard Individual Packing | Blister, English Manual |
| Standard Quantity per Carton | 30pcs |
| Standard Carton Measurement | 440mm × 295mm × 455mm |
| Standard Carton Gross Weight | 17.5kg |
Applications:
- Electrical installation
- Residential wiring inspection
- Industrial electrical maintenance
- Three-phase system verification
- Distribution board troubleshooting
- Circuit continuity testing
- AC/DC voltage verification
- RCD safety testing
- Motor installation
- Electrical service and repair
Package Includes:
- 1× UNI-T UT18D Voltage & Continuity Tester
- 1×English Manual