 Introducing the SM-KT-HE-345 encrypted wireless smoke, heat, and freeze detector from 2GIG. This device will operate over the encrypted 345MHz frequency. This device will monitor three separate programmable loops for smoke, freeze, and heat detection. Its dimensions are 4.7 inches by 1.8 inches and this device is coming in weighing at less than half of a pound. 350 feet open air line of sight range and 70 minute check-ins for constant supervision by the panel. Ladies and gentlemen, the SM-KT-HE-345 encrypted wireless smoke, heat, and freeze detector from 2GIG. Subscribe to our YouTube page and click the Show More tab underneath the video where you can view valuable links pertaining to this product, similar how-to videos, and our low-cost, no-contract alarm monitoring services.