{"product_id":"rki-s2-series-gas-sensor-transmitter","title":"RKI S2 Series Gas Sensor\/Transmitter","description":"\u003cp\u003eThe RKI S2 Series is a plug-in, field-replaceable gas sensor\/transmitter built around catalytic bead, infrared, MOS, galvanic, or electrochemical sensing elements to cover combustible gas (LEL), hydrogen-specific detection, oxygen, and a wide range of toxic gases including AsH3, Cl2, ClO2, HCN, NH3, NO2, PH3, and SO2. Standard 4-20mA output pairs with RKI Beacon controllers, PLCs, or any compatible DCS.\u003c\/p\u003e\n\u003cp\u003eCombustible, hydrogen-specific, oxygen, H2S, and CO2 versions are available in an explosion-proof housing with flame arrestors (Class I Division 1 Groups B, C, D) or a non-explosion-proof housing for Class I Division 2 installations; toxic sensor versions are rated for Division 2 service. An optional stainless steel junction box suits corrosive environments, and units are rated for indoor or outdoor mounting. A no-sensor base unit is also available for facilities specifying their own detector separately. Sensor service life runs 2-3 years for flammable sensors, 3-5 years for toxics, and 5+ years for O2, CO2, and IR sensors. The configurations listed here cover the most commonly ordered sensor types and housings; additional gas ranges and calibrations are available by quote.\u003c\/p\u003e","brand":"RKI Instruments","offers":[{"title":"LEL 0-100% Catalytic, Explosion-Proof (UL)","offer_id":48206584578238,"sku":"65-2405RK","price":506.25,"currency_code":"USD","in_stock":true},{"title":"LEL 0-100% Catalytic, Explosion-Proof, Stainless Steel J-Box","offer_id":48206584611006,"sku":"65-2405RKSS","price":581.25,"currency_code":"USD","in_stock":true},{"title":"O2 0-25% Capillary, Explosion-Proof (CSA)","offer_id":48206584643774,"sku":"65-2322RK","price":547.5,"currency_code":"USD","in_stock":true},{"title":"H2S 0-100 ppm, Explosion-Proof (CSA)","offer_id":48206584676542,"sku":"65-2331RK","price":645.0,"currency_code":"USD","in_stock":true},{"title":"CO 0-300 ppm, Explosion-Proof (CSA)","offer_id":48206584709310,"sku":"65-2336RK","price":645.0,"currency_code":"USD","in_stock":true},{"title":"AsH3 0-1.5 ppm, Non-Explosion-Proof","offer_id":48206584742078,"sku":"65-2340RK-ASH3","price":660.0,"currency_code":"USD","in_stock":true},{"title":"PH3 0-1 ppm, Non-Explosion-Proof","offer_id":48206584774846,"sku":"65-2340RK-PH3","price":660.0,"currency_code":"USD","in_stock":true},{"title":"HCN 0-15 ppm, CT-7 Sensor, Non-Explosion-Proof","offer_id":48206584807614,"sku":"65-2341-HCN-15","price":903.75,"currency_code":"USD","in_stock":true},{"title":"SO2 0-10 ppm, CT-7 Sensor, Non-Explosion-Proof","offer_id":48206584840382,"sku":"65-2341-SO2-10","price":903.75,"currency_code":"USD","in_stock":true},{"title":"Cl2 0-10 ppm, CT-7 Sensor, Non-Explosion-Proof","offer_id":48206584873150,"sku":"65-2341-CL2-10","price":903.75,"currency_code":"USD","in_stock":true},{"title":"NH3 0-75 ppm, CT-7 Sensor, Non-Explosion-Proof","offer_id":48206584905918,"sku":"65-2341-NH3-75","price":903.75,"currency_code":"USD","in_stock":true},{"title":"NO2 0-15 ppm, CT-7 Sensor, Non-Explosion-Proof","offer_id":48206584938686,"sku":"65-2341-NO2","price":903.75,"currency_code":"USD","in_stock":true},{"title":"IR Methane (CH4) 0-100% LEL, Explosion-Proof","offer_id":48206584971454,"sku":"65-2394RK-CH4","price":821.25,"currency_code":"USD","in_stock":true},{"title":"IR CO2 0-5,000 ppm, Explosion-Proof (UL)","offer_id":48206585004222,"sku":"65-2396RK-02","price":821.25,"currency_code":"USD","in_stock":true},{"title":"IR CO2 0-5,000 ppm, Non-Explosion-Proof","offer_id":48206585036990,"sku":"65-2397RK-02","price":738.75,"currency_code":"USD","in_stock":true},{"title":"H2-Specific MOS 0-2,000 ppm, Explosion-Proof (UL)","offer_id":48206585069758,"sku":"65-2445-2000","price":645.0,"currency_code":"USD","in_stock":true},{"title":"H2-Specific 0-100% LEL, Explosion-Proof (UL)","offer_id":48206585102526,"sku":"65-2451RK","price":622.5,"currency_code":"USD","in_stock":true},{"title":"TC Hydrogen 0-10% Vol, Explosion-Proof","offer_id":48206585135294,"sku":"65-2462RK","price":945.0,"currency_code":"USD","in_stock":true},{"title":"LEL, No Sensor, Base Unit","offer_id":48206585168062,"sku":"65-2405-NS","price":330.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/S2_series.jpg?v=1785127743","url":"https:\/\/envirotechonline.com\/products\/rki-s2-series-gas-sensor-transmitter","provider":"EnviroTech Services","version":"1.0","type":"link"}