--- product_id: 55107522 title: "Arctic Hayes PHCO520 SleepSafe Carbon Monoxide Alarm Tester Spray 400 ml, Blue" brand: "arctic hayes" price: "21557CFA" currency: XOF in_stock: true reviews_count: 8 category: "Arctic Hayes" url: https://www.desertcart.sn/products/55107522-arctic-hayes-phco520-sleepsafe-carbon-monoxide-alarm-tester-spray-400 store_origin: SN region: Senegal --- # Up to 7 reliable tests per can Fire Brigade recommended for safety 400ml aerosol capacity Arctic Hayes PHCO520 SleepSafe Carbon Monoxide Alarm Tester Spray 400 ml, Blue **Brand:** arctic hayes **Price:** 21557CFA **Availability:** ✅ In Stock ## Summary > 🛡️ Stay ahead of danger—test your CO alarms like a pro! ## Quick Answers - **What is this?** Arctic Hayes PHCO520 SleepSafe Carbon Monoxide Alarm Tester Spray 400 ml, Blue by arctic hayes - **How much does it cost?** 21557CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/55107522-arctic-hayes-phco520-sleepsafe-carbon-monoxide-alarm-tester-spray-400) ## Best For - arctic hayes enthusiasts ## Why This Product - Trusted arctic hayes brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Simple & Effective:** No complicated setup—just spray, seal, and wait for your alarm to respond. - • **Compact & Ready to Use:** 400ml aerosol designed for quick, hassle-free testing anytime, anywhere. - • **Multiple Tests, One Can:** Perform up to 7 accurate tests per can—never second guess your alarm’s readiness. - • **Trusted Safety Standard:** Endorsed by fire safety professionals to keep your home and workplace secure. - • **Precision Testing in a Can:** Easily verify your CO alarm’s sensor functionality with every spray. ## Overview The Arctic Hayes SleepSafe Carbon Monoxide Alarm Tester Spray is a 400ml aerosol designed to functionally test carbon monoxide sensors with up to 7 tests per can. Recommended by the Fire Brigade, it ensures your CO alarms are always operational, providing peace of mind for home and workplace safety. ## Description Arctic Hayes SleepSafe Carbon Monoxide Alarm Tester Spray is simple and easy to use and specially designed to test the SleepSafe range of carbon monoxide alarms. It ensures your carbon monoxide alarms are always in working order to protect your home or workplace. As recommended by the fire brigade, alarm batteries and sensors should be tested regularly. Comes in 400 ml aerosol can. Review: It works but be patient! - Works by putting CO alarm in a sealable sandwich bag, close off most of the bag, leave room for the little tube from the can and then a 3 second spray then fully seal. Be patient though! It can take a few seconds for your CO alarm to detect and go off! Review: It does what it says on the tin - It took 2 three second bursts into the bag before my carbon monoxide alarm triggered. Follow the instructions and be patient. ## Features - Pressurised container: May burst if heated. - 400ml aerosol can - Easy to use - Up to 7 tests per can - Functionally tests the sensor in carbon monoxide alarms - Can be used to test flue gas analysers - Recommended by the Fire Brigade, tests should be carried out regularly ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B071D7XKTD | | Best Sellers Rank | 51,944 in DIY & Tools ( See Top 100 in DIY & Tools ) 91 in Carbon Monoxide Detectors 1,097 in Home Security Systems | | Brand | Arctic Hayes | | Colour | Blue | | Compatible Devices | Carbon Monoxide Alarm | | Compatible devices | Carbon Monoxide Alarm | | Country of Origin | United Kingdom | | Customer Reviews | 4.0 out of 5 stars 112 Reviews | | Global Trade Identification Number | 05012804500247 | | Included Components | 1 x Arctic Hayes SleepSafe Carbon Monoxide Alarm Tester Spray 400 ml | | Item Type Name | 1 x Arctic Hayes SleepSafe Carbon Monoxide Alarm Tester Spray 400 ml | | Item Weight | 0.1 Kilograms | | Item weight | 0.1 Kilograms | | Manufacturer | Arctic Hayes | | Manufacturer Warranty Description | No guarantee. | | Model Number | PHCO520 | | Number of Items | 1 | | Part Number | ARCPHCO520 | | Product Style | Compact | | Sensor Type | Carbon Monoxide Sensor | | Sensor type | Carbon Monoxide Sensor | | Style | Compact | | Unit Count | 1.0 count | ## Product Details - **Brand:** Arctic Hayes - **Colour:** Blue - **Compatible devices:** Carbon Monoxide Alarm - **Global Trade Identification Number:** 05012804500247 - **Item weight:** 0.1 Kilograms - **Manufacturer:** Arctic Hayes - **Number of items:** 1 - **Sensor type:** Carbon Monoxide Sensor - **Style:** Compact ## Images ![Arctic Hayes PHCO520 SleepSafe Carbon Monoxide Alarm Tester Spray 400 ml, Blue - Image 1](https://m.media-amazon.com/images/I/51U4ENe2DyL.jpg) ## Questions & Answers **Q: Does this canister contain carbon monoxide or some form of substitute?** A: I read on the product's label: "SleepSafe Test Gas contains a controlled amount of Carbon Monoxide in helium, sufficient to test CO Detectors ..." ## Customer Reviews ### ⭐⭐⭐⭐⭐ It works but be patient! *by N***X on 19 January 2026* Works by putting CO alarm in a sealable sandwich bag, close off most of the bag, leave room for the little tube from the can and then a 3 second spray then fully seal. Be patient though! It can take a few seconds for your CO alarm to detect and go off! ### ⭐⭐⭐⭐⭐ It does what it says on the tin *by A***R on 8 June 2026* It took 2 three second bursts into the bag before my carbon monoxide alarm triggered. Follow the instructions and be patient. ### ⭐ Completely empty when it arrived. *by O***E on 5 February 2026* Arrived very lightweight and completely empty. The lid was in place so shipping could not have caused the problem. Waste of my time sending it back via the Post Office. I am not alone with my comments about it being empty on arrival. ## Frequently Bought Together - Arctic Hayes PHCO520 SleepSafe Carbon Monoxide Alarm Tester Spray 400 ml, Blue - Arctic Hayes PH043A SleepSafe Smoke Alarm Tester Spray 150 ml, Blue - Smoke Sabre - smoke detector test aerosol --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/55107522-arctic-hayes-phco520-sleepsafe-carbon-monoxide-alarm-tester-spray-400](https://www.desertcart.sn/products/55107522-arctic-hayes-phco520-sleepsafe-carbon-monoxide-alarm-tester-spray-400) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-07-10*