{"title":"Our Top Sellers","description":"","products":[{"product_id":"coster-rfg-651","title":"Coster RFG 651","description":"\u003cp\u003eAPPLICATION:\u003c\/p\u003e\n\u003cp\u003eMonitor, by means of remote sensors, the concentration of gas in the air, and, when this exceeds the threshold level, activate the operational relay and the external alarms. Complies with CEI EN 50194 and CEI EN 50244 (methano e LPG); CEI EN 50291 and CEI EN 50292 (CO) regulations. Essential sensors:  1 sensor for methane, LPG or carbon monoxide. \u003c\/p\u003e\n\u003cp\u003eFEATURES: Power supply: 230 V ~ or 12 V–. Consumption: 6 VA. DIN 105 x 115 modular enclosure. Protection IP 40. Adjustable alarm threshold: Methane = 0.5...1.25 %. Propane = 0.22...0.56 %. CO = 0.02...0.05 %. Pre-alarm (63 %)alarm and fault sensors alarm. Voltage-free SPDT output; rating 250 V ~, 5 (1) A for control N.O. or N.C. valves.\u003c\/p\u003e\n\u003cp\u003eTYPICALLY SHIPS IN 1-2 WORKING DAYS\u003c\/p\u003e","brand":"Gas Detection Warehouse","offers":[{"title":"Default Title","offer_id":54280316485980,"sku":"CST-RFG-651","price":325.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0904\/5514\/6844\/files\/RFG651.jpg?v=1747225769"},{"product_id":"coster-rfg-652","title":"Coster RFG 652","description":"\u003cp\u003eAPPLICATION:\u003c\/p\u003e\n\u003cp\u003eMonitor, by means of remote sensors, the concentration of gas in the air, and, when this exceeds the threshold level, activate the operational relay and the external alarms. Complies with CEI EN 50194 and CEI EN 50244 (methano e LPG); CEI EN 50291 and CEI EN 50292 (CO) regulations. Essential sensors:  1 or 2 sensor for methane, LPG or carbon monoxide. \u003c\/p\u003e\n\u003cp\u003eFEATURES: Power supply: 230 V ~ or 12 V–. Consumption: 6 VA. DIN 105 x 115 modular enclosure. Protection IP 40. Adjustable alarm threshold: Methane = 0.5...1.25 %. Propane = 0.22...0.56 %. CO = 0.02...0.05 %. Pre-alarm (63 %)alarm and fault sensors alarm. Voltage-free SPDT output; rating 250 V ~, 5 (1) A for control N.O. or N.C. valves.\u003c\/p\u003e\n\u003cp\u003eTYPICALLY SHIPS IN 1-2 WORKING DAYS\u003c\/p\u003e","brand":"Gas Detection Warehouse","offers":[{"title":"Default Title","offer_id":54280316584284,"sku":"CST-RFG-652","price":378.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0904\/5514\/6844\/files\/RFG652.jpg?v=1747225664"},{"product_id":"coster-rfg-653","title":"Coster RFG 653","description":"\u003cp\u003eAPPLICATION:\u003c\/p\u003e\n\u003cp\u003eMonitor by means of remote sensors, the concentration of gas in the air, and, when this exceeds the threshold level, activate the operational relay and the external alarms. \u003c\/p\u003e\n\u003cp\u003eFEATURES:\u003c\/p\u003e\n\u003cp\u003ePower supply: 230 V ~ or 12 V–. Consumption: 6 VA. DIN 105 x 115 modular enclosure. Protection IP 40. Adjustable alarm threshold: Methane = 0.5...1.25 %. Propane = 0.22...0.56 %. CO = 0.02...0.05 %. Pre-alarm (63 %)alarm and fault sensors alarm. Voltage-free SPDT output; rating 250 V ~, 5 (1) A for control N.O. or N.C. valves.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eComplies with CEI EN 50194 and CEI EN 50244 (methano e LPG); CEI EN 50291 and CEI EN 50292 (CO) regulations. Essential sensors:  1,2 or 3 sensor for methane, LPG or carbon monoxide.  TYPICALLY SHIPS IN 1-2 WORKING DAYS\u003c\/p\u003e","brand":"Gas Detection Warehouse","offers":[{"title":"Default Title","offer_id":54280316649820,"sku":"CST-RFG-653","price":412.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0904\/5514\/6844\/files\/RFG653.jpg?v=1747225496"},{"product_id":"coster-srs150","title":"Coster SRS150 (Methane)","description":"\u003cp\u003eGAS SENSOR FOR RFG 442\/8, RFG 651\/2\/3 AND RFG 361\u003c\/p\u003e\n\u003cp\u003eMonitor the concentration of combustible gas (Methane) in the air and activate a voltage output to the electronic detector.\u003c\/p\u003e\n\u003cp\u003eHousing in plastic material.\u003c\/p\u003e\n\u003cp\u003eWall mounting.\u003c\/p\u003e\n\u003cp\u003eComplies with CEI EN 50194 and CEI EN 50244 regulations.\u003c\/p\u003e\n\u003cp\u003eTYPICALLY SHIPS IN 1-2 WORKING DAYS\u003c\/p\u003e","brand":"Gas Detection Warehouse","offers":[{"title":"Default Title","offer_id":54280316813660,"sku":"CST-SRS-150","price":96.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0904\/5514\/6844\/files\/SRSSensor2_b1fe8d73-b6cf-4d88-9b3c-18d34a1ba21f.jpg?v=1747225131"},{"product_id":"coster-srs250","title":"Coster SRS250 (LPG)","description":"\u003cp\u003eGAS SENSOR FOR RFG 442\/8, RFG 651\/2\/3 AND RFG 361\u003c\/p\u003e\n\u003cp\u003eMonitor the concentration of combustible gas (LPG) in the air and activate a voltage output to the electronic detector.\u003c\/p\u003e\n\u003cp\u003eHousing in plastic material.\u003c\/p\u003e\n\u003cp\u003eWall mounting.\u003c\/p\u003e\n\u003cp\u003eComplies with CEI EN 50194 and CEI EN 50244 regulations.\u003c\/p\u003e\n\u003cp\u003eTYPICALLY SHIPS IN 1-2 WORKING DAYS\u003c\/p\u003e","brand":"Gas Detection Warehouse","offers":[{"title":"Default Title","offer_id":54280316911964,"sku":"CST-SRS-250","price":96.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0904\/5514\/6844\/files\/SRSSensor2.jpg?v=1747225048"},{"product_id":"coster-srs350","title":"Coster SRS350 (CO)","description":"\u003cp\u003eGAS SENSOR FOR RFG442\/8, RFG 651\/2\/3 AND RFG 361\u003c\/p\u003e\n\u003cp\u003eMonitor the concentration of Carbon Monoxide (CO) in the air and activate a voltage output to the electronic detector.\u003c\/p\u003e\n\u003cp\u003eHousing in plastic material.\u003c\/p\u003e\n\u003cp\u003eWall mounting.\u003c\/p\u003e\n\u003cp\u003eComplies with CEI EN 50194 and CEI EN 50244 regulations.\u003c\/p\u003e\n\u003cp\u003eTYPICALLY SHIPS IN 1-2 WORKING DAYS\u003c\/p\u003e","brand":"Gas Detection Warehouse","offers":[{"title":"Default Title","offer_id":54280317043036,"sku":"CST-SRS-350","price":96.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0904\/5514\/6844\/files\/SRSSensor.jpg?v=1747224911"},{"product_id":"s4s-gaswarden-boiler-room","title":"S4S Gaswarden Boiler Room Gas Alarm Package","description":"\u003cp\u003e\u003cspan\u003e\u003cu class=\"x-el x-el-span c2-69 c2-4n c2-3 c2-ab c2-q c2-6b c2-ac c2-ae\"\u003e\u003cstrong class=\"x-el x-el-span c2-69 c2-4n c2-3 c2-ab c2-q c2-4r c2-ac\"\u003eThe S4S Gaswarden Boiler Room Package\u003c\/strong\u003e\u003c\/u\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Package includes: \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e- Gaswarden Control Panel x 1, \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e- Methane (NG) sensor x 1, \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e- Carbon Monoxide (CO) x1, \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e- Amber Sounder\/Beacon x 1.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• 24VDC or 115\/230VAC\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Continuous sensor status monitoring\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Pre-calibrated Sensors\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Digital display\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Simple network connection and setup\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Menu options\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe S4S Gaswarden gas leak detection system features remote sensors connected to the main control unit via a 3 core cable network. The control unit is an advanced design using the latest technology and provides a high integrity system whilst offering a significant cost saving over conventional gas alarm systems.\u003cbr\u003eStandard sensors for use in commercial and light industrial applications such as laboratories, workshops, boiler plant rooms etc are available for monitoring toxic, flammable, oxygen or refrigerant gases. Each gas sensor continuously monitors the atmosphere for any hazardous conditions, on detection of gas the sensor will indicate the gas level status A1, A2, A3 by LED indication and sounder. Information received by the control panel from the sensor is then displayed, indicating the zone, gas type and alarm status. Alarm levels that are exceeded are then able to activate user selectable relays and appropriate control actions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong class=\"x-el x-el-span c2-69 c2-4n c2-3 c2-ab c2-q c2-4r c2-ac\"\u003eNote: Delivery 10-15 days from acceptance of order\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Gas Detection Warehouse","offers":[{"title":"Default Title","offer_id":54280317174108,"sku":"S4S-GSW-BRP","price":1075.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0904\/5514\/6844\/files\/S4S-Gaswarden-gas.png?v=1764235948"},{"product_id":"coster-rfg-448-230vac","title":"Coster RFG 448 (230VAC)","description":"\u003cp\u003eGas leak detector for up to 3 remote sensors for central heating plant or similar application.\u003c\/p\u003e\n\u003cp\u003eSuitable for detecting methane, LPG or CO leaks.\u003c\/p\u003e\n\u003cp\u003eCapable of serving up to 3 external methane (SRS150), LPG (SRS250) or CO (SRS350) sensors.\u003c\/p\u003e\n\u003cp\u003e4 relay outputs for controlling gas shut-off valves and\/or alarms. \u003c\/p\u003e\n\u003cp\u003e4 DIN rail module\u003c\/p\u003e\n\u003cp\u003eTechnical  Data Power supply 230 Volt AC Hardware 1 RS-485 port 2 Device configuration keys 4 Digital outputs (first one also NC) 1 NO+NC relay 3 NO relay 3 Sensor-related alarm signalling LED 1 Run LED 1 LED fault\/error signalling TYPICALLY SHIPS IN 1-2 WORKING DAYS\u003c\/p\u003e","brand":"Gas Detection Warehouse","offers":[{"title":"Default Title","offer_id":54280318976348,"sku":"CST-RFG-448-230","price":380.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0904\/5514\/6844\/files\/RFG44.jpg?v=1747219327"},{"product_id":"s4s-guardian®-pro-chlorine-package","title":"S4S Guardian® Pro - Chlorine Package 1 Channel","description":"\u003cp\u003eA fixed gas alarm system that meets the requirements for economical and reliable monitoring of Chlorine (Cl2) gas in swimming pool plant rooms.\u003c\/p\u003e\n\u003cp\u003ePackage includes:\u003c\/p\u003e\n\u003cp\u003e1 x S4S Guardian® Pro Control Panel\u003c\/p\u003e\n\u003cp\u003e1 x S4S Guardian® Point Chlorine Sensor (0-5ppm)\u003c\/p\u003e\n\u003cp\u003e1 x Amber Beacon\/Sounder\u003c\/p\u003e\n\u003cp\u003eSystem is pre-calibrated and tested.\u003c\/p\u003e\n\u003cp\u003eOutputs -\u003c\/p\u003e\n\u003cp\u003eAlarm level 1 activates Relay 1 at 0.3ppm Cl2\u003c\/p\u003e\n\u003cp\u003eAlarm level 2 activates Relay 2 at 0.5ppm Cl2\u003c\/p\u003e\n\u003cp\u003eRelay 3 is preset to be used as a muteable sounder relay\u003c\/p\u003e\n\u003cp\u003eRelay 4 is preset as a Fault output\u003c\/p\u003e\n\u003cp\u003eAll contacts rated 3A – 230v AC\u003c\/p\u003e\n\u003cp\u003e*This system is non-expandable. If you may require additional sensors please look at the S4S Guardian® Pro Multi Channel Package.\u003c\/p\u003e\n\u003cp\u003e*Typically ships in 7-10 working days.\u003c\/p\u003e","brand":"Gas Detection Warehouse","offers":[{"title":"Default Title","offer_id":57570023145820,"sku":null,"price":1199.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0904\/5514\/6844\/files\/Imageforbrochure.jpg?v=1778169316"}],"url":"https:\/\/gasdetectionwarehouse.co.uk\/collections\/best-selling-products.oembed","provider":"Gas Detection Warehouse","version":"1.0","type":"link"}