USI 10 Year Tamper Proof Sealed Battery Smoke & Fire Smart Alarm (MDSK300S) | Universal Security Store
OCH_LCO on Twitter: "Please notify the OCH Call Center if your Smoke Alarm has been removed or tampered with. Smoke Alarms need to work at all times. #OCHFireSafety @OttFire @OttFirePrevent #firesafety https://t.co/lKMIzTlxkf" /
First Alert Part # PRC710B - First Alert Low Profile Photoelectric Smoke/Co Combo Alarm With Tamper Proof And Sealed Lithium Battery - Combination Detectors - Home Depot Pro
Universal Security Instruments Hardwired 10 Year Tamper Proof Permanent Power Sealed Battery 3-in-1 Universal Smoke Sensing & Carbon Monoxide Combination Alarm, Model MIC1509S,white - - Amazon.com