# Kwikset SmartCode Electronic Deadbolt with SmartKey

## Kwikset SmartCode Electronic Deadbolt with SmartKey

You can set the combination to your door using any of the following numbers

• 12
• 34
• 56
• 78
• 90

What is the temperature range that this unit will operate?

mine worked today and it’s below zero. The electronics are mostly on the inside.

What a strange device.

These are popular down here in Florida. After you get past the understanding that one button controls 2 numbers (and describing it to the people who use it), they work well. They do eat batteries for lunch though, so plan to change them twice a year and have a backup method for getting in when they die and lock you out, which they WILL do, it’s just a matter of time.

Lots of other companies use modified versions of these for their own products (like smart home companies).

BTW, I think the idea of one button controlling 2 numbers feels like a marketing scam but the math makes it a little more palatable. It makes it feel like you have 10 numbers to use for the combo, but in reality you only have 5 buttons. The device allows you to set a 4 to 8 number (button) combo. Most people only use a 4 digit combo that I see, so the user thinks they have 10000 (10^4) combinations for 4 digit codes made up of 10 numbers, but in reality the user only has 5^4 or 625 combinations. Still a decent deterrent though, but nowhere near preventable. An 8 digit code of 10 numbers should be 10^8 or 100M possible combinations, but it’s ‘only’ 5^8 or 390k+ different combinations.

Long story short, even the worst combination is still 625 different combinations, and that would take a while to go through, but if someone wanted in bad enough it wouldn’t take long (maybe 30 minutes to try all 625 combinations). Life pro tip: Make your combinations at least 6-8 numbers that isn’t your phone number.

I looked through all the linked info and didn’t see anything about a temperature rating. As @specialbuddy mentioned, the mechanics/electronics are inside so they stay warm.

Bought this the last time around. I live in San Diego, so I can’t comment on weather. I am surprised at how long the batteries last. I went a good 1.5 years before replacing them. The low battery LED wasn’t flashing, but I was getting a little uneasy rolling the dice on batteries for so long!

Buttons are still good after so many uses too. I expect this deadbolt to last a long time.

Thanks for the info. Bummer looks like the brass model is sold out

I have these on my house. About 5 years old. They work great. As far as trying all combinations to unlock a door. It’s way faster and easier to kick the door in or smash the glass and unlock from the inside.

I upgraded mine with a Z wave card and connected them to my Wink system. It’s pretty useful because you can get Push notifications when the batteries get low.

It locks you out after 3 wrong combos and starts beeping. Most devices have something that deters brute force attacks. So even if you managed to hook a robot up to this it would take forever.

I have Schlage Camelot (with a button for each number) and it is fantastic. Solid workhorse and best purchase of year. I paid around \$100 for it and worth every penny. I would not hesitate to buy it vs this model from Kwikset even if Woot gave it away.