{"product_id":"m2a-series-by-rki-instruments","title":"M2A Series by RKI Instruments","description":"\u003cp\u003e\u003cstrong\u003eRKI Instruments\u003c\/strong\u003e M2A series stand-alone explosion-proof transmitter: operates as an independent monitor or as part of an integrated system, connecting by analog or digital signal to virtually any controller, PLC or DCS.\u003c\/p\u003e\n\u003cp\u003eGas options: LEL - H2 Specific, Hydrogen Sulfide (H2S), Hydrocarbons (HC), LEL, Oxygen (O2), Carbon Monoxide (CO), CH4 (0-100% Vol.), CH4 (0-100%  LEL), CO2 (0-5.0% Vol.), CO2 (0-50% Vol.), CO2 (0-100% Vol.), CO2 (0-5000 ppm).\u003c\/p\u003e\n\u003ch3\u003eKey benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOperates with or without a controller; direct digital readout on OLED cold-temperature display\u003c\/li\u003e\n\u003cli\u003eGases: LEL, O2, H2S, CO, CO2 and 100% Vol CH4; toxics NH3, AsH3, Cl2, ClO2, HCN, PH3 and SO2; infrared sensor for combustibles and CO2\u003c\/li\u003e\n\u003cli\u003e4-20 mA and digital Modbus outputs standard\u003c\/li\u003e\n\u003cli\u003e2 fully programmable alarm relays plus fail relay\u003c\/li\u003e\n\u003cli\u003eNon-intrusive calibration via magnetic wand; housing need not be opened, so no need to declassify the area; one-person field calibration\u003c\/li\u003e\n\u003cli\u003eAutomatic zero drift correction for more stable readings\u003c\/li\u003e\n\u003cli\u003eExplosion-proof construction; patented water-repellent sensor cover\u003c\/li\u003e\n\u003cli\u003eUser-friendly push buttons and OLED menus\u003c\/li\u003e\n\u003cli\u003eLong-life sensors (2+ years typical)\u003c\/li\u003e\n\u003cli\u003eSensor construction rated Class I, Div. 1, Groups B, C, D for flammables, CO, H2S, O2 and CO2; Class I, Div. 2 for other toxics\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"4\"\u003e\u003c\/td\u003e\n\u003ctd rowspan=\"2\" colspan=\"2\"\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eCombustibles\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e LEL\u003cbr\u003eH2 Specific \u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e O2\u003cbr\u003eOxygen \u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e H2S\u003cbr\u003eHydrogen Sulfide \u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e CO\u003cbr\u003eCarbon Monoxide \u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e CH4\u003cbr\u003eMethane \u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e HC\u003cbr\u003eHydrocarbons \u003c\/td\u003e\n\u003ctd rowspan=\"2\" colspan=\"2\"\u003e CO2\u003cbr\u003eCarbon Dioxide \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLEL\u003c\/td\u003e\n\u003ctd\u003ePPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\"\u003ePart#\u003c\/td\u003e\n\u003ctd\u003eUL\u003c\/td\u003e\n\u003ctd\u003e65-2640RK\u003c\/td\u003e\n\u003ctd\u003e65-2647RK\u003c\/td\u003e\n\u003ctd\u003e65-2641RK\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e65-2643RK-05\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e65-2645RK-05\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e65-2646RK-05\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e65-2649RK-CH4   65-2658RK-CH4 \u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e65-2649RK-HC\u003c\/td\u003e\n\u003ctd rowspan=\"2\" colspan=\"2\"\u003e65-2660RK-02   65-2660RK-03 65-2660RK-05 65-2660RK-10 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCSA\u003c\/td\u003e\n\u003ctd\u003e65-2640RK-05\u003c\/td\u003e\n\u003ctd\u003e65-2647RK-05\u003c\/td\u003e\n\u003ctd\u003e65-2641RK-05\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003eSensors\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003eCatalytic\u003c\/td\u003e\n\u003ctd\u003eGalvanic cell\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eElectrochemical\u003c\/td\u003e\n\u003ctd colspan=\"4\"\u003eInfrared\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\" colspan=\"3\"\u003eMeasuring Ranges\u003c\/td\u003e\n\u003ctd rowspan=\"3\"\u003e0 – 100% LEL\u003c\/td\u003e\n\u003ctd rowspan=\"3\"\u003e0 – 9000\u003cbr\u003eppmCH4\u003c\/td\u003e\n\u003ctd rowspan=\"3\"\u003e0 – 100%\u003cbr\u003eLEL\u003c\/td\u003e\n\u003ctd rowspan=\"3\"\u003e0 – 25.0% Vol.\u003c\/td\u003e\n\u003ctd rowspan=\"3\"\u003e0 – 100 ppm\u003c\/td\u003e\n\u003ctd rowspan=\"3\"\u003e0 – 300 ppm\u003c\/td\u003e\n\u003ctd rowspan=\"3\"\u003e0 – 100% LEL   0 – 100% Vol. \u003c\/td\u003e\n\u003ctd rowspan=\"3\"\u003e0 – 100% LEL\u003c\/td\u003e\n\u003ctd\u003e-02\u003c\/td\u003e\n\u003ctd\u003e0 – 5000 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e-03   -05 \u003c\/td\u003e\n\u003ctd\u003e0 – 5% Vol.   0 – 50% Vol. \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e-10\u003c\/td\u003e\n\u003ctd\u003e0 – 100% Vol.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e1% LEL\u003c\/td\u003e\n\u003ctd\u003e20 ppm\u003c\/td\u003e\n\u003ctd\u003e1% LEL\u003c\/td\u003e\n\u003ctd\u003e0.1% Vol.\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e1 ppm\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e1% LEL \/ 1% Vol.\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e20 ppm \/ 0.01% Vol \/ 0.1% Vol. \/ 1% Vol.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003eLower Detectable Limit (LDL)\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003e2% of full scale\u003c\/td\u003e\n\u003ctd\u003e0.1% Vol.\u003c\/td\u003e\n\u003ctd colspan=\"6\"\u003e2% of full scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003eMax Current Draw (24VDC)\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003e160 mA with alarm 1 and alarm 2 active and all relays energized\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003e125 mA with alarm 1 and alarm 2   active and all relays energized \u003c\/td\u003e\n\u003ctd colspan=\"4\"\u003e160 mA with alarm 1 and alarm 2   active and all relays energized \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003eResponse Time (T-90)\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003e35 Seconds or less\u003c\/td\u003e\n\u003ctd\u003e90 Seconds\u003cbr\u003eor less\u003c\/td\u003e\n\u003ctd\u003e60 Seconds\u003cbr\u003eor less\u003c\/td\u003e\n\u003ctd\u003e90 Seconds\u003cbr\u003eor less\u003c\/td\u003e\n\u003ctd colspan=\"4\"\u003e30 Seconds or less\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003eLife Expectancy\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e2 to 3 years with normal service\u003c\/td\u003e\n\u003ctd\u003e3 to 5 years with normal service\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003e2 to 3 years with normal service\u003c\/td\u003e\n\u003ctd colspan=\"4\"\u003e5 years plus with normal service\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003eAccuracy\u003cbr\u003e(which ever is greater)\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003e± 5% of reading or ± 2% of full scale\u003c\/td\u003e\n\u003ctd\u003e± 0.5% Vol. O2\u003c\/td\u003e\n\u003ctd\u003e± 5% of\u003cbr\u003ereading or\u003cbr\u003e± 2 ppm H2S\u003c\/td\u003e\n\u003ctd\u003e± 5% of\u003cbr\u003ereading or\u003cbr\u003e± 5 ppm CO\u003c\/td\u003e\n\u003ctd colspan=\"4\"\u003e± 5% of reading or ± 2 % of full scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003eWeather Resistant\u003c\/td\u003e\n\u003ctd colspan=\"10\"\u003ePatented water repellent sensor coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"13\"\u003eAlarms\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003eAlarm Settings\u003c\/td\u003e\n\u003ctd colspan=\"10\"\u003eTwo fully programmable alarm set points, increasing \/ decreasing, latching \/\u003cbr\u003eself-resetting, on delays, off delays, normally energized or de-energized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003eAlarm Indication\u003c\/td\u003e\n\u003ctd colspan=\"10\"\u003eVisual LEDs. Alarm 1, Amber; Alarm 2, Red; Fail, Red\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003eRelays\u003c\/td\u003e\n\u003ctd colspan=\"10\"\u003e5 amp form ‘C’ contacts for alarm 1, alarm 2, and fail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"13\"\u003ePhysical\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003eDimensions\u003c\/td\u003e\n\u003ctd colspan=\"10\"\u003eHeight: 8.5” (215 mm), Width: 5.2” (132 mm), Depth: 4.5” (114 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003eDisplay\u003c\/td\u003e\n\u003ctd colspan=\"10\"\u003eAlphanumeric OLED display. 8 characters per line;\u003cbr\u003e2 lines for gas concentration readout, plus user-friendly calibration and setup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003eEnclosure\u003c\/td\u003e\n\u003ctd colspan=\"10\"\u003eExplosion proof for Class I, Div 1, Groups B, C, D.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003eEnclosure Rating\u003c\/td\u003e\n\u003ctd colspan=\"10\"\u003eNEMA 4X, explosion proof, watertight, cast aluminum with o-ring seal and epoxy powder coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003eControls\u003c\/td\u003e\n\u003ctd colspan=\"10\"\u003eMagnet used for calibration functions. Calibrates without opening the housing.\u003cbr\u003eInternal push-button controls also available for calibration and setup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"13\"\u003eOperating Environment\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003e-40°F to 167°F   -40°C to 75°C \u003c\/td\u003e\n\u003ctd\u003e-4°F to 113°F   -20°C to 45°C \u003c\/td\u003e\n\u003ctd\u003e-40°F to 104°F   -40°C to 40°C \u003c\/td\u003e\n\u003ctd\u003e23°F to 104°F   -5°C to 40°C \u003c\/td\u003e\n\u003ctd colspan=\"4\"\u003e-40°F to 122°F   -40°C to 50°C \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd colspan=\"10\"\u003e5 – 95% RH non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003eLocation\u003c\/td\u003e\n\u003ctd colspan=\"10\"\u003eIndoor or outdoor. Explosion proof for Class I, Div. 1, Groups B, C, D.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd colspan=\"10\"\u003e10 VDC – 30 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"13\"\u003eOutputs\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003eAnalog\u003c\/td\u003e\n\u003ctd colspan=\"10\"\u003eLinear 4-20 mA signal, into 1000 ohms impedance max (24DC), 0 – 500 ohms max (12VDC) corresponding to 0 – full scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003eDigital\u003c\/td\u003e\n\u003ctd colspan=\"10\"\u003eModbus RTU output standard, fully configurable, 2-wire RS-485, 1200 to 19.2k baud\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\" colspan=\"3\"\u003eApprovals\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e65-2640RK\u003cbr\u003eUL\u003c\/td\u003e\n\u003ctd\u003e65-2641RK   UL \u003c\/td\u003e\n\u003ctd rowspan=\"2\" colspan=\"3\"\u003eC CSA US\u003c\/td\u003e\n\u003ctd rowspan=\"2\" colspan=\"4\"\u003eC UL US\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e65-2640RK-05\u003cbr\u003eC CSA US\u003c\/td\u003e\n\u003ctd\u003e65-2641RK-05\u003cbr\u003eC CSA US\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003eControllers\u003c\/td\u003e\n\u003ctd colspan=\"10\"\u003eBeacon 110, Beacon 200, Beacon 410A, Beacon 800 as well as most DCS \/ PLC systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003eWarranty\u003c\/td\u003e\n\u003ctd colspan=\"10\"\u003eOne year material and workmanship\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eO2\u003cbr\u003eOxygen\u003c\/td\u003e\n\u003ctd\u003eH2S\u003cbr\u003eHydrogen Sulfide\u003c\/td\u003e\n\u003ctd\u003eCO\u003cbr\u003eCarbon Monoxide\u003c\/td\u003e\n\u003ctd\u003eToxics See Chart Below\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eCO2\u003cbr\u003eCarbon Dioxide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart#\u003c\/td\u003e\n\u003ctd\u003e65-2666RK   *65-2644RK \u003c\/td\u003e\n\u003ctd\u003e65-2662RK\u003c\/td\u003e\n\u003ctd\u003e65-2663RK\u003c\/td\u003e\n\u003ctd\u003eSee Chart Below\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e65-2661RK-02   65-2661RK-03 65-2661RK-05 65-2661RK-10 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensors\u003c\/td\u003e\n\u003ctd\u003eGalvanic cell\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003eElectrochemical\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eInfrared\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003eMeasuring Ranges\u003c\/td\u003e\n\u003ctd rowspan=\"3\"\u003e0-25% Vol.\u003c\/td\u003e\n\u003ctd rowspan=\"3\"\u003e0-100 ppm\u003c\/td\u003e\n\u003ctd rowspan=\"3\"\u003e0-300 ppm\u003c\/td\u003e\n\u003ctd rowspan=\"3\"\u003eSee Chart Below\u003c\/td\u003e\n\u003ctd\u003e-02\u003c\/td\u003e\n\u003ctd\u003e0 – 5000 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e-03   -05 \u003c\/td\u003e\n\u003ctd\u003e0 – 5% Vol.   0 – 50% Vol. \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e-10\u003c\/td\u003e\n\u003ctd\u003e0 – 100% Vol.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e0.1% Vol.\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e1 ppm\u003c\/td\u003e\n\u003ctd\u003eSee Chart Below\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e20 ppm \/ 0.01% Vol. \/ 0.1% Vol. \/ 1%Vol.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLower Detectable Limit (LDL)\u003c\/td\u003e\n\u003ctd\u003e0.1% Vol.\u003c\/td\u003e\n\u003ctd colspan=\"5\"\u003e2% of full scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResponse Time (T-90)\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003e35 Seconds or less\u003c\/td\u003e\n\u003ctd\u003e60 Seconds or less\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e30 Seconds or less\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Current Draw (24VDC)\u003c\/td\u003e\n\u003ctd colspan=\"4\"\u003e125 mA with alarm 1 and alarm 2 active and all relays energized\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e160 mA with alarm 1 and alarm 2 active and all relays energized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLife Expectancy\u003c\/td\u003e\n\u003ctd colspan=\"4\"\u003e2 to 3 years with normal service\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e5 years plus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003cbr\u003e(which ever is greater)\u003c\/td\u003e\n\u003ctd\u003e± 0.5% Vol. O2\u003c\/td\u003e\n\u003ctd\u003e± 5% of reading or\u003cbr\u003e± 2 ppm H2S\u003c\/td\u003e\n\u003ctd\u003e± 5% of reading or\u003cbr\u003e± 5 ppm CO\u003c\/td\u003e\n\u003ctd\u003e± 10% of reading or\u003cbr\u003e± 5% of full scale\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e± 5% of reading or\u003cbr\u003e± 2% of full scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"7\"\u003eAlarms\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlarm Settings\u003c\/td\u003e\n\u003ctd colspan=\"6\"\u003eTwo fully programmable alarm set points, increasing \/ decreasing, latching \/ self-resetting, on delays, off delays, normally energized or de-energized,\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlarm Indication\u003c\/td\u003e\n\u003ctd colspan=\"6\"\u003eVisual LEDs. Alarm 1=Amber; Alarm 2=Red; Fail=Red\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelays\u003c\/td\u003e\n\u003ctd colspan=\"6\"\u003e5 Amp form ‘C’ contacts for alarm 1, alarm 2, and fail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"7\"\u003ePhysical\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd colspan=\"6\"\u003eHeight: 8.5” (215 mm), Width: 5.2” (132 mm), Depth: 4.5” (114 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd colspan=\"6\"\u003eAlphanumeric OLED display. 8 characters per line; 2 lines for gas concentration readout, plus user-friendly calibration and setup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Rating\u003c\/td\u003e\n\u003ctd colspan=\"6\"\u003eNon explosion proof construction, designed for Class I, Div. 2, Groups B, C, D (no certification)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing J-Box\u003c\/td\u003e\n\u003ctd colspan=\"6\"\u003eNEMA 4X, explosion proof, watertight, cast aluminum with o-ring seal and epoxy powder coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControls\u003c\/td\u003e\n\u003ctd colspan=\"6\"\u003eMagnet used for calibration functions. Calibrates without opening the housing. Internal push-button controls also available for calibration and setup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor\u003c\/td\u003e\n\u003ctd colspan=\"6\"\u003eAluminum \/ Plastic (non explosion proof)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"7\"\u003eOperating Environment\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-4°F to 113°F   -20°C to 45°C \u003c\/td\u003e\n\u003ctd\u003e-40°F to 104°F   -40°C to 40°C \u003c\/td\u003e\n\u003ctd\u003e23°F to 104°F   -5°C to 40°C \u003c\/td\u003e\n\u003ctd\u003e14°F to 104°F   -10°C to 40°C \u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e-40°F to 122°F   -40°C to 50°C \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd colspan=\"6\"\u003e5 – 95% RH non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocation\u003c\/td\u003e\n\u003ctd colspan=\"6\"\u003eIndoor or outdoor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd colspan=\"6\"\u003e10 VDC – 30 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"7\"\u003eOutputs\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog\u003c\/td\u003e\n\u003ctd colspan=\"6\"\u003eLinear 4-20 mA signal, into 1000 ohms impedance max (24DC), 0 – 500 ohms max (12VDC) corresponding to 0 – full scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital\u003c\/td\u003e\n\u003ctd colspan=\"6\"\u003eModbus RTU output standard, fully configurable, 2-wire RS-485, 1200 to 19.2k baud\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControllers\u003c\/td\u003e\n\u003ctd colspan=\"6\"\u003eBeacon 110, Beacon 200, Beacon 410A, Beacon 800 as well as most DCS \/ PLC systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd colspan=\"6\"\u003eOne year materials and workmanship\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"12\"\u003e\u003c\/td\u003e\n\u003ctd\u003ePart Number With J-Box\u003c\/td\u003e\n\u003ctd\u003eGas\u003c\/td\u003e\n\u003ctd\u003eRange\u003c\/td\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003eSensor Type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e65-2670RK-NH3-75\u003c\/td\u003e\n\u003ctd\u003eAmmonia (NH3)\u003c\/td\u003e\n\u003ctd\u003e0 – 75.0 ppm\u003c\/td\u003e\n\u003ctd\u003e0.1 ppm\u003c\/td\u003e\n\u003ctd\u003eCT-7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e65-2670-NH3-1\u003c\/td\u003e\n\u003ctd\u003eAmmonia (NH3)\u003c\/td\u003e\n\u003ctd\u003e0 – 100 ppm\u003c\/td\u003e\n\u003ctd\u003e1 ppm\u003c\/td\u003e\n\u003ctd\u003eCT-7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e65-2670-NH3-2\u003c\/td\u003e\n\u003ctd\u003eAmmonia (NH3)\u003c\/td\u003e\n\u003ctd\u003e0 – 200 ppm\u003c\/td\u003e\n\u003ctd\u003e1 ppm\u003c\/td\u003e\n\u003ctd\u003eCT-7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e65-2670-NH3-5\u003c\/td\u003e\n\u003ctd\u003eAmmonia (NH3)\u003c\/td\u003e\n\u003ctd\u003e0 – 500 ppm\u003c\/td\u003e\n\u003ctd\u003e1 ppm\u003c\/td\u003e\n\u003ctd\u003eCT-7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e65-2648RK-AsH3\u003c\/td\u003e\n\u003ctd\u003eArsine (AsH3)\u003c\/td\u003e\n\u003ctd\u003e0 – 1.50 ppm\u003c\/td\u003e\n\u003ctd\u003e0.1 ppm\u003c\/td\u003e\n\u003ctd\u003eESM -01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e65-2670RK-CL2-3\u003c\/td\u003e\n\u003ctd\u003eChlorine (Cl2)\u003c\/td\u003e\n\u003ctd\u003e0 – 3.00 ppm\u003c\/td\u003e\n\u003ctd\u003e0.01 ppm\u003c\/td\u003e\n\u003ctd\u003eCT-7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e65-2670RK-CL2-10\u003c\/td\u003e\n\u003ctd\u003eChlorine (Cl2)\u003c\/td\u003e\n\u003ctd\u003e0 – 10.0 ppm\u003c\/td\u003e\n\u003ctd\u003e0.1 ppm\u003c\/td\u003e\n\u003ctd\u003eCT-7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e65-2670RK-CLO2\u003c\/td\u003e\n\u003ctd\u003eChlorine Dioxide (ClO2)\u003c\/td\u003e\n\u003ctd\u003e0 – 1.00 ppm\u003c\/td\u003e\n\u003ctd\u003e0.01 ppm\u003c\/td\u003e\n\u003ctd\u003eCT-7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e65-2648RK-HCN\u003c\/td\u003e\n\u003ctd\u003eHydrogen Cyanide (HCN)\u003c\/td\u003e\n\u003ctd\u003e0 – 15.0 ppm\u003c\/td\u003e\n\u003ctd\u003e0.1 ppm\u003c\/td\u003e\n\u003ctd\u003eESM -01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e65-2648RK-PH3\u003c\/td\u003e\n\u003ctd\u003ePhosphine (PH3)\u003c\/td\u003e\n\u003ctd\u003e0 – 1.00 ppm\u003c\/td\u003e\n\u003ctd\u003e0.01 ppm\u003c\/td\u003e\n\u003ctd\u003eESM -01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e65-2648RK-SO2\u003c\/td\u003e\n\u003ctd\u003eSulfur Dioxide (SO2)\u003c\/td\u003e\n\u003ctd\u003e0 – 6.00 ppm\u003c\/td\u003e\n\u003ctd\u003e0.01 ppm\u003c\/td\u003e\n\u003ctd\u003eESM -01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003e*Partial pressure sensor for helium (He) applications: consult factory for details.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eProduct information supplied by the manufacturer (RKI Instruments).\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct codes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLEL - H2 Specific — SKU: 65-2641RK\u003c\/li\u003e\n\u003cli\u003eHydrogen Sulfide (H2S) — SKU: 65-2645RK-05\u003c\/li\u003e\n\u003cli\u003eHydrocarbons (HC) — SKU: 65-2649RK-HC\u003c\/li\u003e\n\u003cli\u003eLEL — SKU: 65-2640RK\u003c\/li\u003e\n\u003cli\u003eOxygen (O2) — SKU: 65-2643RK-05\u003c\/li\u003e\n\u003cli\u003eCarbon Monoxide (CO) — SKU: 65-2646RK-05\u003c\/li\u003e\n\u003cli\u003eCH4 (0-100% Vol.) — SKU: 65-2658RK-CH4-4\u003c\/li\u003e\n\u003cli\u003eCH4 (0-100%  LEL) — SKU: 65-2649RK-CH4-4\u003c\/li\u003e\n\u003cli\u003eCO2 (0-5.0% Vol.) — SKU: 65-2660RK-03\u003c\/li\u003e\n\u003cli\u003eCO2 (0-50% Vol.) — SKU: 65-2660RK-05\u003c\/li\u003e\n\u003cli\u003eCO2 (0-100% Vol.) — SKU: 65-2660RK-10\u003c\/li\u003e\n\u003cli\u003eCO2 (0-5000 ppm) — SKU: 65-2660RK-02\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"RKI Instruments","offers":[{"title":"LEL - H2 Specific","offer_id":39515675394083,"sku":"65-2641RK","price":2000.7,"currency_code":"USD","in_stock":true},{"title":"Hydrogen Sulfide (H2S)","offer_id":39515675459619,"sku":"65-2645RK-05","price":2316.6,"currency_code":"USD","in_stock":true},{"title":"Hydrocarbons (HC)","offer_id":39515675557923,"sku":"65-2649RK-HC","price":2948.4,"currency_code":"USD","in_stock":true},{"title":"LEL","offer_id":39515675361315,"sku":"65-2640RK","price":2000.7,"currency_code":"USD","in_stock":true},{"title":"Oxygen (O2)","offer_id":39515675426851,"sku":"65-2643RK-05","price":2106.0,"currency_code":"USD","in_stock":true},{"title":"Carbon Monoxide (CO)","offer_id":39515675492387,"sku":"65-2646RK-05","price":2316.6,"currency_code":"USD","in_stock":true},{"title":"CH4 (0-100% Vol.)","offer_id":39515675525155,"sku":"65-2658RK-CH4-4","price":3159.0,"currency_code":"USD","in_stock":true},{"title":"CH4 (0-100%  LEL)","offer_id":39515675590691,"sku":"65-2649RK-CH4-4","price":2948.4,"currency_code":"USD","in_stock":true},{"title":"CO2 (0-5.0% Vol.)","offer_id":39515675983907,"sku":"65-2660RK-03","price":2948.4,"currency_code":"USD","in_stock":true},{"title":"CO2 (0-50% Vol.)","offer_id":39515677163555,"sku":"65-2660RK-05","price":2948.4,"currency_code":"USD","in_stock":true},{"title":"CO2 (0-100% Vol.)","offer_id":39515675951139,"sku":"65-2660RK-10","price":2948.4,"currency_code":"USD","in_stock":true},{"title":"CO2 (0-5000 ppm)","offer_id":39515677196323,"sku":"65-2660RK-02","price":2948.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0076\/2960\/2875\/products\/M2A-Series-disp-russmillsafety.com.png?v=1637693250","url":"https:\/\/russmillsafety.com\/en-br\/products\/m2a-series-by-rki-instruments","provider":"RussmillSafety.com","version":"1.0","type":"link"}