{"product_id":"smc-5100-04-it-gas-sensor","title":"SMC 5100-04-IT Gas Sensor","description":"\u003cdiv\u003e\u003cp\u003eThe SMC 5100-04-IT Gas Sensor is an electrochemical carbon monoxide (CO) sensor module designed to plug into Sierra Monitor’s Sentry IT fixed-gas-detection systems for real-time CO monitoring in industrial environments. It carries factory alarm setpoints of 50 ppm and 100 ppm, enabling early warning when CO concentrations reach these thresholds. For integration, the 5100-04-IT supports multiple outputs: a 4-20 mA analog current, RS-485 Modbus RTU serial interface, or the SMC Sentry digital bus interface, with optional relays (up to 8 A for alarms and a 2 A for trouble signaling). The sensor is available in a standard aluminum enclosure and in a stainless-steel enclosure variant, model 5100-04-IT-SS, for harsher environments. As part of the 5100-IT family, it is used in fixed-gas detectors to provide reliable CO monitoring in industrial facilities, including applications where continuous toxic gas surveillance is critical for safety and compliance.\u003c\/p\u003e\u003c\/div\u003e","brand":"SMC","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":46259849134314,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8039\/3450\/files\/GTG-STOCK-014.png?v=1788727428","url":"https:\/\/gtghardware.com\/products\/smc-5100-04-it-gas-sensor","provider":"GTG Hardware","version":"1.0","type":"link"}