Arctic Hayes Combustible Gas Leak Detector The Arctic Hayes Combustible Gas Leak Detector is a professional tool for detecting combustible gases including methane and hydrocarbons. With a heated semiconductor gas sensor and microprocessor control it’s precise and consistent. With a 15.5” stainless steel flexible probe it’s easy to get into those hard to reach areas, the tri-colour LED visual leak indicator and variable intensity audible alarm will alert you instantly. Supplied in a protective carry case with batteries, connection hose and full instructions this portable gas leak detector is perfect for engineers, safety inspectors and HVAC professionals. Features Advanced Gas Sensor – Heated semiconductor sensor with microprocessor control. Adjustable Sensitivity