Engineering Quality and Reliability

The SST Model GT821 Oxygen Deficiency/Enrichment NOVA-Sensor® is a completely self-contained device that measures and displays the concentration of oxygen present in a protected area, performs local control functions, and optionally transmits this information to a central control point. Two alarm relays and a fault relay are included. Each SST NOVA-Sensor includes a high reliability microprocessor based transmitter/controller in the associated explosion proof housing. A digital readout continuously displays operating status and the actual concentration of oxygen. Model available as weatherproof and dust-proof. Suitable for Class I Division 1 Groups B, C, D locations.