The HL5 is a mini water-leak detection unit. Its pocket-size makes it suitable for water specialists and plumbers. This instrument provides visual and audio indication of leaks and provides wireless transmission of leak-noise to headphones with a maximum distance of 20 metres. This enables greater freedom of movement for the user.

The HL5 possess 3 optimised filter settings ie low, high and broadband. It comes with a built-in LED, thus allowing it to function at night as well. Its frequency range is a wide bandwidth of 40Hz to 4000Hz. Most importantly, the HL5 is extremely easy to use.