The size of the knockout is ½ inch and there is only one hole. Every Cannon Safe model comes with a knockout. If you decide to use it for any reason please be careful not to alter the hole in any way as it may void your warranty and damage the integrity of the safe.
The knockouts are small enough that they will not be an issue if a fire event occurs. As added protection though, Stack-On offers an installation kit which includes seal that expands for extra protection.
The only Cannon Safe model that comes with a built-in power supply is the Cannon 1965 premium model. However, all Cannon Safes come with knockouts in the back to allow for the wiring of electrical systems to use with lights or dehumidifiers. When using the knockouts be careful not to make them any bigger. This [...]
When the indicator beads turn pink, the silica gel is saturated and needs to be reactivated. To reactivate the beads, place the entire unit (do not disassemble) in the oven at 325 Fahrenheit for at least 3 hours. Let the unit cool enough to handle, then return to the safe. Note: the indicating beads will [...]
An alternative option to an electric dehumidifier is our silica gel dehumidifier, which does not need electricity to operate. If you prefer the electrical option, Cannon Safes come with knockouts in the back to allow for the wiring of electrical systems to use with lights or dehumidifiers. When using the knockouts be careful not to [...]
Lock-out mode lasts five minutes. Refrain from pushing buttons while the battery connects or the timer will reset.