Home / Test Instruments / FID Gas Detectors FID Gas Detectors Sort: Most popularWhat's newPrice low to highPrice high to lowName A to ZName Z to A 2 Products Sort GES Gas-Tec MK4 Hydrocarbon Gas Detector £3,800.00 £4,560.00 (inc. VAT) GES Gas-Tec MK4 Hydrocarbon Gas Detector £3,800.00 £4,560.00 (inc. VAT) View Product GES Gas-Tec MK5 FID Hydrocarbon Gas Detector £4,800.00 £5,760.00 (inc. VAT) GES Gas-Tec MK5 FID Hydrocarbon Gas Detector £4,800.00 £5,760.00 (inc. VAT) View Product