ALARM SIGNS - 4 Pack 3" x 5" Commercial & Home Security Signs, Surveillance Video CCTV Warning! Deterrence Decals SAFETY TIPS - # 1.) "DON'T POST YOUR ALARM COMPANY SIGNS" (Relay Attack): Don't! give burglars any information about your alarm company, Police officials have determined that burglars can bypass or hack your wireless system (See "Relay Attack"). Instead, just post general deterrent signs. 2. "REAL MONITORING and EQUIPMENT": Burglars Google the alarm signs to check if the sign and monitoring services are real. Be sure to only purchase deterrent signs form brands that also sell "REAL" alarm/surveillance Equipment and Monitoring services. 3. "AlarmPolice and SolarAlarm QUALITY DETERRENT SIGNS": Burglars soon learn that SolarAlarm Alarm/Surveillance products are "REAL" and compatible with most major security devices. 4. "COMPATIBLE WITH": ADT, Brinks, GW Security Inc., SimpliSafe, PiSECTOR, Swann, Sabre, Samsung, Netgear, UniquExceptional, Masione, WALI, Kodak, Fortress Security Store, Skylink, Zebora, Funlux, ZOSI, Amcrest, UOKOO, D-Link, R-Tech, Nest, Uniden, Esky, Toughsty, GERI, Zmodo, ROCAM, ,Best Vision Systems, VIMTAG, Canary, Wolo, Secure, and many more! 5. "STAKES POST" (Not Incuded): Check out ASIN#: B00IPUI16C for GenuineBrands 36" 100% Aluminum Stakes