FAST HM II Listening Stick

The FAST Aqua HMII is a mechanical listening device developed for pre-locating water leaks before more advanced acoustic or electronic methods are deployed. It allows technicians to quickly assess suspected leak areas by listening directly to structure-borne sound through valves, hydrants and exposed pipework.

Manufactured from steel and aluminium, the HMII is built for regular field use. Its construction includes an aluminium resonance chamber and a stainless steel membrane, which help transmit and amplify leak noise clearly through the rod.

A silicone rubber cover on the earpiece ensures comfortable use during extended listening periods. The listening rods are made from magnetisable stainless steel and are fitted with a tip for secure contact on metallic assets.

A detachable version is available, connecting via an M5 screw thread. This allows flexibility in transport and storage while maintaining a secure connection during operation.

Available in multiple diameters and lengths, the Aqua HMII can be selected to suit different working environments, including deep chambers and standard valve access points.

For water utility teams carrying out routine inspections, step testing or early-stage leak investigation, the FAST Aqua HMII offers a straightforward and cost-effective mechanical solution.

• Mechanical Listening Stick for Leak Pre-Location
Designed for the early identification of water leak noise on live pipework.

• Robust Steel and Aluminium Construction
Built to withstand regular field use in demanding utility environments.

• Aluminium Resonance Chamber
Enhances transmission of structure-borne sound for clearer listening.

• Stainless Steel Membrane
Supports accurate acoustic transfer from the asset to the operator.

• Magnetisable Stainless Steel Rods with Tip
Provide secure contact on valves, hydrants and exposed metallic fittings.

• Comfortable Silicone Earpiece Cover
Improves usability during extended inspection work.

• Detachable Version with M5 Screw Connection
Allows easier transport and adaptable configuration.

• Available in Multiple Lengths and Diameters
Options include 6mm and 8mm diameters with 1.5m and 2.0m lengths to suit access requirements.