Nukit Tempest Power Loss Alarm Instructions

How to install your Nukit Tempest Power Loss Alarm 

Nukit Tempest Power Loss Alarm is intended to prevent your Tempest air purifier from being moved or disabled without authorization. Installing it is a safe and appropriate classroom STEM or Make-Ed project for all ages.

You should build and test your Nukit Tempest kit before installing Power Loss Alarm board. These instructions are very detailed, but installing the board is really quite easy. 

Lets get started!

Open your Nukit Tempest, and remove the zip-ties securing the cables to the botton panel.

Find the four rubber plugs sealing the accessory board mounting holes.

Remove the four rubber plugs.

Find the brass stand-offs


Find the 3mm screws.

Secure each stand-off, to the bottom panel with a 3mm screw.

Then secure the PC board to the stand-offs with the additional included 3mm screws.

Unplug the 5mm barrel jack from the fans.

Add the included Y connector, so that incoming 12v power now goes to both the PC board, and the fans.

Remove the 19mm rubber plug from the back panel.

Find the 19mm key switch.

Insert into back panel and loosely secure with nut.


Find included wrench and screwdriver, assemble as shown.


Tighten the nut with the wrench. Holding the lock with a pair of vise grip pliers helps, but is not required.

Attach the red and black spade connector to the key switch. They are not polarity-sensitive (either side can be red or black).

Find your 9 volt battery (not included).

Press the 9 volt battery into place so that the connectors are firmly seated.

Before you connect the key switch to the PC board, make sure you have the key, and your 12v power supply ready. Leave the sticker in place over the black cylindrical alarm. The alarm is quite loud without the sticker covering it but the additional volume may be suitable for some applications.

If the alarm does not sound, turn the key switch 90º to the second position.

When the alarm sounds, a red LED will light up.

To turn off the alarm, plug the 12v power supply in. Test a few times. To troubleshoot, make sure the battery is firmly seated and the keyswitch plugged in.

Either using the existing self-adhesive zip-tie pads, or the new included ones, neatly resecure the wires to the botton panel as shown.

Attach the included self-adhesive zip-tie pads to the back panel.

Neatly secure the key switch wires and clip the zip-tie ends.

The final result, should look like this:

Test the alarm a few times by unplugging the 12v barrel jack and plugging it back in again, before reinserting the filter, reattaching the top panel 4-pin connector, and closing the case up. 

You’re ready to go!