Bests & Worsts Reviews from Amazon

Unfortunately, uses 9 volt battery (got tired of buying those expensive batteries, so I bought rechargeable NiMH 9v charger right here on amazon,{Caution Lithium Ion batts will NOT work ionization type smoke detectors / I've already made that mistake}.....very inexpensive for 2 bats and charger, BTW)…..so, since I'm a landlord and have 3 apartments here in Brooklyn that mandates I supply smoke detectors and this one fits the bill. I have it in my own apartment and it works quite well; just keep about 8 to 10 feet away from cooking stove and at a height where you can push the reset button! Ionization detectors are far more accurate at detecting "fire" smoke as they are not infra red operated! Kidde is a superb brand that I've been using for years and now I can just buy ONE when I need to replace every 7-10 years instead of a card of 2 or 3 like at Costco or big box store! Very inexpensive for what it is and trust me when I say I've bought too many of these that they almost seem disposable. BTW,...ALL of the smoke detectors now made have a lifetime of 7-10 years before you have to toss them! DEFINITELY WORTH THE COIN! UPDATE: 2/8/20....all of these are still working like gangbusters AND the price is now all of $4. Yep, NOT a typo $3.84 to be exact! Now that really IS a no brainer! Hey folks,...I spend a fortune in time, energy and money on stuff that I buy and use here on amazon so, if this review was HELPFUL,....well you know what to do! Thanks fellow consumers! UPDATE: 5/16/21.....apparently these have gone up in price to approx. $11.00,.....don't you just love human nature's ability to pique the "greed" factor out in so many of our fellow human beings?? I willl certainly buy as few things as possible from this point forward. I am really NOT predisposed to pay for private Taj-Mahal reflecting pools on private islands OR expensive divorces. Are You?? I guarantee this addendum will not make it past amamzon big brother censor! You really should be red and bald faced ashamed at what you do with price manipulation. It's not ALL trade embargoes....it's lets get filthy rich at our LOYAL customers' expense, eh Jeff???