Looking for a trusty sidekick to tell you when an electrical signal is present? Reach for this voltage tester from FLUKE. It features innovative dual sensitivity. First, you'll see blue LED light that indicates when you're between 2.54 and 12.7cm from the charge source. This switches to red when you're on the spot. As the gadget has an integrated flashlight at the tip of its probe, it's easy to use in dimly lit areas. This is a reliably easy-to-use option – all you need to do is bring it close to the voltage source and it will take things from there.

• Comes supplied with one AAA battery
• Broad voltage detection range between 90 and 600V AC for versatile use
• LED bulb has up to 100,000 hours of operating life for long-term performance
• Pen-style design makes it comfortable to handle during use

• Residential distribution boards
• Consumer electronics
• Communications industry

CAT IV 600V safety rated

This tester works in a temperature range between 0°C to +50°C, so it's suitable for demanding conditions.