4.0 x 120mm 100-500V AC Tester

4.0 x 120mm 100-500V AC Tester

Before working on any circuit, knowing whether it’s live isn’t optional — it’s the difference between a routine job and a serious hazard. This tester is built for exactly that check. The built-in indicator makes it immediately clear when voltage is present, so you can carry out testing and troubleshooting with real confidence rather than guesswork.

It’s built with a durable insulated handle and a precision 4.0mm blade, giving you a comfortable grip along with dependable readings during routine maintenance or installation work. Its compact size means it’s easy to carry in a toolbox or a pocket, ready whenever a quick check is needed.

Benefits

• Detects AC voltage from 100V to 500V
• 4.0mm blade, 120mm overall length
• Built-in voltage indicator
• Durable insulated handle
• Comfortable and simple to use
• Compact, lightweight design
• Suited to professional and experienced DIY use
• Built for long-lasting performance

Specifications

Features a 4.0mm blade, 120mm length, an operating range of 100V to 500V AC, a durable insulated handle and a built-in voltage indicator for dependable electrical testing.

Applications

Useful for testing electrical sockets, switches, terminals, lighting circuits, distribution boards and other AC electrical systems. Widely used for installation, maintenance, fault finding and routine electrical inspections in homes, offices, workshops and commercial buildings.

Best suited for professional electricians and experienced DIY users carrying out electrical work in line with local safety regulations.

Why Choose the 4.0 x 120mm 100-500V AC Tester?

This tester gives you a quick, accurate way to check for AC voltage before you touch a circuit. The insulated handle, built-in indicator and durable build come together to deliver reliable performance and comfortable use that holds up over time. Whether you’re installing new wiring or troubleshooting an electrical circuit, it delivers consistent, professional-quality results.

Choose the 4.0 x 120mm 100-500V AC Tester from Smart Innovation for electrical testing you can count on, built to last.