Tenma Voltage Tester, 12-400V AC/DC

The Tenma Voltage Tester is a straightforward, low-cost tool for electricians and DIY enthusiasts, designed to safely detect the presence of voltages from 12V up to 400V, covering both AC and DC circuits. Its automatic voltage and range detection simplifies operation, while full-range polarity detection provides clear information on DC circuits, enhancing safety and diagnostic accuracy.

Featuring a clear LED display, the tester indicates specific voltage levels at common standards: 12V, 24V, 50V, 120V, 230V, and 400V. This immediate visual feedback allows for quick and reliable circuit testing. The unit boasts a CAT III 400V safety rating, making it suitable for use on distribution circuits and permanently installed equipment, such as domestic consumer units and commercial fixed installations.

Constructed for durability and ease of use, it comes with 1.15-metre leads for convenient reach. With an operating temperature range from -10°C to 55°C, this tester is reliable for use in various environmental conditions, from cold garages to warm plant rooms. Its compact and robust design ensures it can be a trusted part of any toolkit.

Key Specifications

• Voltage Range: 12–400V AC/DC
• Detection: Automatic voltage, range, and polarity detection
• Display: Multi-stage LED indicator for specific voltages
• Safety Rating: CAT III 400V
• Lead Length: 1.15 metres
• Operating Temperature: -10°C to 55°C
• Dimensions: 43mm (H) x 33mm (W) x 15mm (D)
• Weight: 210 grams

This essential tool provides a fast, reliable method for verifying the presence and approximate level of voltage, helping to prevent accidents and ensuring circuits are safe to work on.