CRC 02105 2.5 oz Aerosol Can smoke detector tester. Simulates smoke - provides a true, functional test for smoke detectors. Aerosol spray extends user reach up to 4 feet - Allows testing to be done while standing safely on the floor. Convenient package. Makes testing easy, increasing the likelihood that detectors will be tested on a regular basis. No harmful residue - Smokeless aerosol assures that detectors will remain in proper working order after each test without build-up of carbon residue. Plastic safe - Will not damage plastic housing or internal circuitry. Non staining - Will not discolor painted ceilings, walls or smoke detectors. No class I or class II ozone depleting chemicals - Offers superior performance while complying with the EPA regulations on the use of CFCs. M.S.D.(L.) material safety data label - Provides instant access to current safety information should an accident or OSHA inspection occur. Helps comply with OSHA hazardous communications standard 29 CFR 1910.1200. Smoke Test conveniently tests the functional ability of a smoke detector. Smoke Test can be sprayed while standing on the floor eliminating the need to climb ladders or chairs. Smoke Test is ideal for residential or commercial detectors and is safe and easy to use. A short 3 second burst of Smoke Test is all it takes. In addition, Smoke Test checks for obstructions or debris which clog detector vents and prevent smoke from properly entering the sensing chamber. This important safety test is not accomplished by pushing a test button. Recommended to test the functional ability of commercial or residential smoke detectors. NSF certified. RoHS compliant. Packaged - water-white liquid, dispensed - smoky mist appearance. Alcohol odor. SMOKE TEST also checks for obstructions or debris, which clog detector vents and prevents smoke from properly entering the sensing chamber.