{"product_id":"oxygen-deficiency-and-enrichment-safety-alarm-with-horn-strobes","title":"Oxygen Deficiency and Enrichment Safety Alarm with Horn Strobes","description":"\u003cp\u003eThe \u003cstrong\u003eOxygen Deficiency and Enrichment Safety Alarm with Horn Strobes\u003cspan style=\"color: rgb(234, 8, 8);\"\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003cspan style=\"color: rgb(234, 8, 8);\"\u003e(\u003c\/span\u003e\u003cem\u003e\u003cspan style=\"color: rgb(234, 8, 8);\"\u003eformerly known as the RAD-0002-ZR)\u003c\/span\u003e \u003c\/em\u003eis a 0–23% room oxygen monitor designed to protect personnel from hazardous oxygen depletion and oxygen enrichment conditions. The device continuously measures ambient oxygen levels and provides high-visibility audible and visual alerts when oxygen concentrations fall below or rise above safe thresholds.\u003c\/p\u003e\n\u003cp\u003eThis device is primarily used in laboratories, pharmaceuticals, cryogenics, process cooling, freezers, manufacturing and research facilities.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProvides 24\/7 protection for you and your staff against oxygen deficiency\/enrichment\u003c\/li\u003e\n\u003cli\u003e90db audible and visual alarm on the sensor and remote display (90db)\u003c\/li\u003e\n\u003cli\u003e3 user-configurable alarms meet \u003ca title=\"osha codes\" href=\"\/pt\/blogs\/articles\/oxygen-deficiency-monitor\"\u003eall OSHA codes\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe remote display can be mounted up to 300 feet away\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLong-life zirconium oxide sensor, lasts up to 10+ years!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(247, 9, 9);\"\u003e\u003cstrong\u003e*A surge protector is required for safeguard and longevity of the monitor*\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eAdd-On Options\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.co2meter.com\/collections\/restaurants-food\/products\/co2-storage-safety-alarm-sensor-horn-strobe\" title=\"Single Sensor CO2 Monitoring System and Horn Strobe\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/www.co2meter.com\/collections\/restaurants-food\/products\/central-display-unit-gas-safety-alarms\"\u003eCentral Display Unit for Gas Safety Alarms (RAD-CDU-HS1)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca title=\"Oxygen Deficiency Alarm Display Add-On\" href=\"https:\/\/www.co2meter.com\/products\/oxygen-deficiency-safety-alarm-display-add-on\"\u003eRAD-0022-ZR: Display Add On\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca title=\"Power Monitor Unit\" href=\"https:\/\/www.co2meter.com\/products\/power-monitor-gas-safety-alarms\"\u003eRAD-PMU: Power Monitor Unit\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pt\/products\/sv-1029-solenoid-shut-off-valve\" title=\"Solenoid Safety Shut-Off Valve\"\u003eSV-1029 - Solenoid Shut-Off Safety Valve\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pt\/products\/oxygen-depletion-safety-alarm?variant=14366762991651\" title=\"strobe kit\"\u003eCM-HS2: Dual Horn Strobe Add On Kit\u003c\/a\u003e. Plug flashing strobes into both the sensor and remote display to give a more visual and audible alarm. Used in high-noise environments or where required by an inspector.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertificate of Calibration\u003c\/strong\u003e - Available on request in comments at purchase. For factory recalibration \u003cstrong\u003e\u003ca href=\"\/pt\/products\/certificate-calibration\" title=\"order certificate of calibration\"\u003eorder part no. CAL-0001 here\u003c\/a\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"specifications\"\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasurement Range:\u003c\/strong\u003e 0-23% display\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay Resolution:\u003c\/strong\u003e 0.1%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e Better than 2% FS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Dependence:\u003c\/strong\u003e Not pressure dependent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResponse Time:\u003c\/strong\u003e O2: \u0026lt;2min by 90%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eO2 Deficiency Alarms (default):\u003c\/strong\u003e AL1 19.5%, AL2 16.5%, and AL3 12%.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eO2 Enrichment Alarms (default): \u003c\/strong\u003eAL1 22%, AL2 24%, and AL3 25%. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSound Alarm:\u003c\/strong\u003e 90db @ 10cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlarm Response Time:\u003c\/strong\u003e \u0026lt; 60 seconds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarm-Up Time:\u003c\/strong\u003e 600 seconds (10 min) for full operating temperature range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -58°F to 122°F (-50°C to 50°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor Life Expectancy:\u003c\/strong\u003e 10+ years\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.5lbs (Monitor only)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSEU: \u003c\/strong\u003e6.5 x 5.0 x 2.5 in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRDU: \u003c\/strong\u003e5.5 x 3.5 x 1.75 in.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply: Output:\u003c\/strong\u003e 12VDC, 2000mA.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Input:\u003c\/strong\u003e 100~240 VAC, 50\/60Hz, 0.6A (25 ft. Ethernet cable - included)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Consumption:\u003c\/strong\u003e 3 Watts\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e6 VDC battery backup connections\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelays:\u003c\/strong\u003e Peak Current \u0026lt; 2A @ 30 VDC or 250 VAC, SPDT\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e4-20mA output\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(247, 9, 9);\"\u003e\u003cstrong\u003eA surge protector is required for safeguard and longevity of the monitor\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 year on the device - \u003ca href=\"\/pt\/pages\/terms-conditions\" title=\"CO2Meter Terms and Conditions\"\u003eSee CO2Meter Terms + Conditions.\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"documents\"\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/Data_Sheet_RAD-0002-ZR-HS2_O2_enrichment-1-20.pdf\" title=\"Data sheet for the RAD-0002-ZR-HS2 Oxygen Deficient and Enrichment Safety Alarm with Horn Strobes\"\u003e\u003cimg alt=\"Datasheet Oxygen Safety Alarm\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/CO2METER_PDF.png?1094\"\u003e\u003cstrong\u003e\u003cspan style=\"color: red;\"\u003e Data Sheet - RAD-0002-ZR-HS2 (pdf)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"chrome-extension:\/\/efaidnbmnnnibpcajpcglclefindmkaj\/https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/DS_RAD-0002-ZR-Oxygen_Deficiency_Depletion_Safety_Alarm-co2meter.pdf?v=1775765496\"\u003e\u003cimg alt=\"Datasheet Oxygen Deficiency Safety Alarm\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/CO2METER_PDF.png?1094\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/DS_RAD-0002-ZR-Oxygen_Deficiency_Depletion_Safety_Alarm-co2meter.pdf?v=1775765496\" title=\"Oxygen Deficiency Depletion Safety Alarm Datasheet Discontinued\"\u003e\u003cstrong\u003e\u003cspan style=\"color: red;\"\u003e Datasheet - RAD-0002-ZR Discontinued (pdf)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/MAN-RAD-0002-ZR-Oxygen-O2-Deficiency-Safety-Alarm-CO2Meter-Rev01.05.pdf\"\u003e\u003cimg alt=\"Manual Oxygen Deficiency Safety Alarm\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/CO2METER_PDF.png?1094\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/MAN-RAD-0002-ZR-Oxygen-O2-Deficiency-Safety-Alarm-CO2Meter-Rev01.05.pdf\" title=\"Oxygen Deficiency Depletion Safety Alarm Manual\"\u003e\u003cstrong\u003e\u003cspan style=\"color: red;\"\u003e Manual (pdf)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/RAD-0002-ZR-Installation-Guide_Revised-2025.pdf?v=1742842075\"\u003e\u003cimg alt=\"Installation Guide Oxygen Deficiency Safety Alarm\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/CO2METER_PDF.png?1094\"\u003e\u003cstrong\u003e\u003cspan style=\"color: red;\"\u003e Installation Guide (pdf)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/Resetting-Your-RAD-0002-ZR.pdf?v=1683747050\"\u003e\u003cimg alt=\"How to Hard Reset the RAD-0002-ZR\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/CO2METER_PDF.png?1094\"\u003e\u003cstrong\u003e\u003cspan style=\"color: red;\"\u003e How to Hard Reset the RAD-0002-ZR (pdf)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/RAD-0002_ZR_FAQs_11_2022.pdf\"\u003e\u003cimg alt=\"Datasheet Oxygen Deficiency Safety Alarm for Low Temperature\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/CO2METER_PDF.png?1094\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/RAD-0002_ZR_FAQs_REV0726.pdf?v=1784044962\" title=\"FAQs for O2 Monitor\"\u003e\u003cstrong\u003e\u003cspan style=\"color: red;\"\u003eFAQs (pdf)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/RAD-0002-ZR-Safety-Monitor-AC-DC-Transformer-2023.pdf?v=1683748311\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/CO2METER_PDF.png?1094\" alt=\"24VDC Hard wiring instructions\"\u003e\u003cstrong\u003e\u003cspan style=\"color: red;\"\u003e Hard Wiring Your Oxygen Deficiency Safety Alarm (pdf)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/CO2Meter-5-RAD-0002-ZR-to-Solenoid-Valve.pdf?v=1683747981\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/CO2METER_PDF.png?1094\" alt=\"24VDC Hard wiring instructions\"\u003e\u003cstrong\u003e\u003cspan style=\"color: red;\"\u003e Connecting Multiple Monitors to Solenoid Valve (pdf)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/Connecting_ZR_CM-1026-5_strobe_tower_110VAC-2023.pdf?v=1683749347\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/CO2METER_PDF.png?1094\" alt=\"24VDC Hard wiring instructions\"\u003e\u003cstrong\u003e\u003cspan style=\"color: red;\"\u003e Connecting Monitors to CM-1026-5 Tower (pdf)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/Connecting_ZR_CM-1026-6_strobe_tower_24V_2023.pdf?v=1683749347\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/CO2METER_PDF.png?1094\" alt=\"24VDC Hard wiring instructions\"\u003e\u003cstrong\u003e\u003cspan style=\"color: red;\"\u003e Connecting Monitors to CM-1026-6 Tower (pdf)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/RAD_External_Relay_Connection_1_3.pdf?v=1750705204\"\u003e\u003cimg alt=\"Safety Alarm fan circuit\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/CO2METER_PDF.png?1094\"\u003e\u003cstrong\u003e\u003cspan style=\"color: red;\"\u003e Exhaust Fan Relay Wiring Diagram (pdf)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/Relay_Wiring_Diagram_for_SV_REV2.pdf?v=1765227289\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/CO2METER_PDF.png?1094\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/Relay_Wiring_Diagram_for_SV-1029-W.pdf\" title=\"SV-1029 Wiring Diagram\"\u003e\u003cstrong\u003e\u003cspan style=\"color: red;\"\u003e SV-1029, SV-1030 Wiring Diagram (pdf)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/Oxygen_OSHA_Warning_Signage.zip?v=1671110540\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/assets\/zip.gif\" alt=\"\"\u003e\u003cstrong\u003e\u003cspan style=\"color: red;\"\u003e Oxygen Safety Signage (Included with Purchase) (zip)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/RAD-0002-ZR-O2-Deficiency-Testing-Procedure.pdf?v=1683747735\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/CO2METER_PDF.png?1094\" alt=\"\"\u003e\u003cstrong\u003e\u003cspan style=\"color: red;\"\u003e RAD-0002-ZR Testing Procedures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.youtube.com\/playlist?list=PLrSaPBRnDkbKPRNE9Mc1cniLOdN-w5nON\" target=\"_blank\"\u003e\u003cimg alt=\"RAD-0002-ZR Oxygen Deficiency Safety Alarm Playlist\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/assets\/youtube.gif\"\u003e\u003cstrong\u003e\u003cspan style=\"color: red;\"\u003e RAD-0002-ZR Playlist: Unboxing, Installation, and Calibration\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/youtu.be\/UFlqNQsjYCs\" target=\"_blank\"\u003e\u003cimg alt=\"How to create your own CAT-5 Cable\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/assets\/youtube.gif\"\u003e\u003cstrong\u003e\u003cspan style=\"color: red;\"\u003e How to Create Your Own CAT-5 Cable\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Oxygen Concentration Levels \u0026amp; Effects Chart\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/Oxygen_Concentration_Levels_and_Effects.jpg\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0019\/5952\/files\/CO2METER_PDF.png?1094\" alt=\"O2 Industrial Gas Safety Monitor Manual\"\u003e\u003cstrong\u003e\u003cspan style=\"color: red;\"\u003eOxygen Concentration Levels \u0026amp; Effects Chart\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"accessories\"\u003e\n\u003ch2\u003eAccessories\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.co2meter.com\/collections\/restaurants-food\/products\/central-display-unit-gas-safety-alarms\"\u003eCentral Display Unit for Gas Safety Alarms (RAD-CDU-HS1)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca title=\"Oxygen Deficiency Alarm Display Add-On\" href=\"https:\/\/www.co2meter.com\/products\/oxygen-deficiency-safety-alarm-display-add-on\"\u003eRAD-0022-ZR: Display Add On\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca title=\"Power Monitor Unit\" href=\"https:\/\/www.co2meter.com\/products\/power-monitor-gas-safety-alarms\"\u003eRAD-PMU: Power Monitor Unit\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pt\/products\/sv-1029-solenoid-shut-off-valve\" title=\"Solenoid Safety Shut-Off Valve\"\u003eSV-1029 - Solenoid Shut-Off Safety Valve\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pt\/products\/oxygen-depletion-safety-alarm?variant=14366762991651\" title=\"strobe kit\"\u003eCM-HS2: Dual Horn Strobe Add On Kit\u003c\/a\u003e. Plug flashing strobes into both the sensor and remote display to give a more visual and audible alarm. Used in high-noise environments or where required by an inspector.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertificate of Calibration\u003c\/strong\u003e - Available on request in comments at purchase. For factory recalibration \u003cstrong\u003e\u003ca href=\"\/pt\/products\/certificate-calibration\" title=\"order certificate of calibration\"\u003eorder part no. CAL-0001 here\u003c\/a\u003e.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"CO2Meter","offers":[{"title":"RAD-0002-ZR-HS2: Oxygen Deficiency and Enrichment Safety Alarm with Horn Strobes","offer_id":49030524764416,"sku":"RAD-0002-ZR-HS2","price":2720.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/RAD_0002-ZR_HS2__Oxygen_Deficient_Safety_Alarm-co2meter.jpg?v=1784471352","url":"https:\/\/alotechparts.com\/pt\/products\/oxygen-deficiency-and-enrichment-safety-alarm-with-horn-strobes","provider":"Alo Tech Solutions","version":"1.0","type":"link"}