Smoke Detector Recommendations

[Brad Babiak]

I recently attended a landlord training put on by the city of Cincinnati.  I found out the proper code for smoke alarms is inside each bedroom, within 5 feet on the outside of each bedroom, kitchen, laundry room, and one on each floor.  I am now in need for 50 alarms.

I am looking for an alarm that fits the following criteria: 1) 10 year battery (so tenants don't take it down when beeps for low battery, 2) Photoelectronic and not Ionization.  They said ionization are known for being touchy and going off when there is not really smoke or a fire.  3) Semi cost effective.  Wondering if there is a good brand that comes in a 5 or 10 pack.  4) Not hard wired for easy installation.  5) Hush function.  6) Semi tamper proof so tenants cannot easily deactivate.

I know this may be a lot but wanted to seek any advice or best practices.