UNI-T UT12D is a non-contact AC voltage detector (NCV tester) used to quickly check the presence of AC voltage without touching live wires. It is commonly used by electricians, technicians, and maintenance workers for safety inspection.
Key Features
- Non-contact voltage detection – Detects AC voltage without direct electrical contact
- Dual voltage range detection:
- Low voltage: approximately 24V–1000V AC
- High voltage: approximately 90V–1000V AC
- Safety design – Helps identify live wires before repair work
- LED indicator + buzzer alarm – Gives visual and audible warning when voltage is detected
- Sensitivity adjustment – Allows detection based on working environment
- Compact pen-style design – Easy to carry in a tool box or pocket
- Built-in flashlight – Useful for dark areas
- Low battery indication
- Auto power-off – Saves battery life
Technical Specifications
- Detection Voltage: 24V–1000V AC
- Frequency Range: 50Hz/60Hz
- Safety Rating: CAT III 1000V / CAT IV 600V (depending on version)
- Power Supply: 2 × AAA batteries
- Operating Temperature: Around -10°C to 50°C
- Weight: Lightweight portable design
Applications
- Checking live electrical wires
- Testing switches and sockets
- Finding AC cables behind walls
- Electrical maintenance and troubleshooting
- Home and industrial electrical safety checks