Home Safeguard 25S 2.5-Oz. Smoke Detector Tester Spray Price For: Each Type: Aerosol Smoke Alarm Tester Test System Compatibility: Open & Enclosed Delivery Versa-Tools Kits Part Number Compatibility: VT-Complete; VT-ED8; VT-ED16; VT-KIT1; VT-OD Container Size (oz.): 2.50