*Due to new regulations, you may receive the Solo A5* The Solo A3 Smoke Detector Test is used to test smoke detectors on whether they are functioning correctly or not. A must have for those who want to ensure they have the best possible emergency exit plan for any smoke related scenario. The A3 replicates smoke quickly through the use of a Dispenser. The formula is fast clearing, non toxic and leaves no harmful residue behind so there is no mess or need to worry. The A3 formula is also non flammable and Detector manufacturer approved. This is the professionals choice for ultimate value in aerosol smoke for testing. Note: This Product is designed to be used with Solo 330/332 Dispensers, and is not for the use of non-professionals. Main Features: Non-Flammable Non-Toxic Fast Clearing Fast Activation No Harmful Residue Technical Specification: UL and ULC Listed Detector manufacturer endorsed Oil-free formulation Weight: 353g Quantity: 250ml Specificatio