Works with ADT Tested good and working. DSC WS4916 Wireless Smoke & Heat Detector Sensor w/Built-in Sounder. The item “ADT ALARM DSC WS4916 Wireless Smoke & Heat Detector Sensor withBuilt-in Sounder” is in sale since Friday, May 06, 2016. This item is in the category “Home & Garden\Home Improvement\Home Security\Security Systems”. The seller is “duff-d3″ and is located in Folsom, California. This item can be shipped to United States, to Canada, to United Kingdom, DK, RO, SK, BG, CZ, FI, HU, LV, LT, MT, EE, to Australia, GR, PT, CY, SI, to Japan, to China, SE, KR, ID, to Taiwan, ZA, TH, to Belgium, to France, to Hong Kong, to Ireland, to Netherlands, PL, to Spain, to Italy, to Germany, to Austria, RU, IL, to Mexico, to New Zealand, SG, to Switzerland, NO, SA, UA, AE, QA, KW, BH, HR, MY, TR, CL, CO, CR, PA, TT, GT, HN, JM.