The GDA 2528 Oxygen gas sensor has a range of 0-25% vol Oxygen. It has an electrochemical gas sensing unit which is temperature compensated and easily replaceable.
The GDA 2526 Ammonia (NH₃) gas sensor is a 2 wire 4-20 mA Loop Powered device. It has an electrochemical sensing unit which is temperature compensated and easily replaceable.
The GDA 3100 Refrigerant Gas Detector uses the latest in NDIR techniques for detecting a wide range of refrigerant gases and is immune from cross sensitivity to other gases