Voltage tester MODECO MN-17-140 100–250 V, probe length 135 mm

MODECO MN-17-140 is a handheld voltage tester designed to detect AC voltage in the 100–250 V range. The compact instrument has a 135 mm insulated probe for contact testing and a clear visual indication of voltage presence. Its portable design suits electricians, maintenance staff and other professionals who need quick verification of live circuits, sockets and wiring during installation, troubleshooting or routine checks.

Advantages

The tester combines a narrow 135 mm probe with an ergonomic body that enables access to recessed terminals and confined spaces. The wide detection range of 100–250 V covers common household and most industrial low-voltage AC systems. Visual indication provides an immediate, easy-to-read confirmation of live voltage without complex settings. Battery-free operation or low power consumption reduces maintenance needs and supports frequent on-site checks.

Suitable for

• Quick verification of live sockets and outlets
• Checking wiring and terminal blocks during installations
• Troubleshooting electrical circuits in residential and commercial settings
• Routine maintenance and safety inspections

Key specifications

• Voltage detection range: 100–250 V AC
• Probe length: 135 mm (insulated tip for contact testing)
• Handheld, compact form factor for easy portability
• Clear visual indication of voltage presence
• Designed for quick contact testing of live conductors and outlets

How to use

Hold the tester by the insulated handle and place the 135 mm probe tip in contact with the conductor or terminal to be tested. Ensure a reliable contact point and observe the visual indicator to determine the presence of AC voltage within the 100–250 V range. Follow standard safety procedures: de-energize circuits when possible before working on them, use appropriate personal protective equipment, and verify readings with a secondary test method if required.

Usage recommendations

Use the tester for preliminary live-checks and quick troubleshooting. Verify instrument operation on a known live source before and after testing, avoid exposure to moisture and extreme temperatures, and store the tester in a dry place. For measurements outside the specified range or for non-contact voltage detection, use a device specifically rated for those tasks.