The Gunson Gastester is a digital exhaust carbon monoxide (CO) analyser with a pulse pump, accurately measuring CO levels for testing and setting carburettors (leaded or unleaded petrol) and petrol injection systems on any vehicle. The digital display clearly shows the CO volume percentage, allowing the engine to be tuned for optimal performance and cleaner, more efficient running. Ideal for checking CO after carburettor, ignition, and air filter maintenance, as well as tuning pre-cat classic cars, motorbikes, and single-cylinder engines. The system is easy to use: a metal exhaust probe is held in place with a pair of retaining springs, and a flexible pipe connects the probe to the Gastester. The kit includes everything needed for accurate CO testing and is supplied with full instructions.
