All about the ark Tamo Pro illumination moduleUpdated 4 days ago
All about the ark Tamo Pro Illumination module
There are currently 2 versions of the ark Tamo Pro. The illumination module is different in each version.
You can identify which version you have by looking at the below descriptions and photos.
1. The Rev C version of the ark Tamo Pro has a sealed illumination module. You will notice there is a green circuit board that is situated underneath the setting dials. Please follow the relevant instructions further down in this article for Changing the Illumination Module in a Rev C Tamo Pro.

2. The Rev D version of the ark Tamo Pro has an illumination module with a user replaceable battery. The base of the module is visible between the code cover and the hinge. Please follow the relevant instructions further down in this article for Changing the Battery in a Rev D Tamo Pro.

Changing the Illumination Module in a Rev C Tamo Pro
Illumination Module
The ark Tamo Pro Rev C key safe is equipped with an integrated illumination module which is powered by a cell battery. The battery is designed to last up to 5 years with normal use (up to 4 times per day). However, with more frequent use, the battery life may be shorter. While the mechanical parts of the key safes are covered by a 5-year warranty (upon successful product registration), the illumination modules are covered for 2 years.
To activate the lights, pull down and release the clear/reset button in the middle of the key safe.
Should you experience any issues with the illumination module, please contact our customer service team on 0330 363 0303 or email us at [email protected]
However, rest assured that the key safe will remain secure, and it will still function correctly. The illumination module only powers the lights, the key safe is mechanical and will continue to operate even when the battery goes flat.
You will notice that the lights begin to fade as the battery depletes until the lights eventually stop working altogether when the battery is completely flat. The key safe will continue to operate.
Illumination Module Technical Data & Features:
Light activation duration: 20 seconds
Battery type: CR2477 button cell (integrated and non-replaceable)
LED light integrated with the module
No charging required
Replacement illumination modules are available from our website.
Please see instructions below on how to change the illumination module.

This is what a replacement illumination module for a Rev C Tamo Pro looks like.

Changing the Battery in a Rev D Tamo Pro
The battery can be easily changed by anyone, with no special skills required.
The battery is a CR2032 coin cell battery and we recommend using a high quality replacement such as Renata.
Remove and immediately recycle or dispose of batteries from equipment not used for an extended period of time according to local regulations.
Always completely secure the battery compartment. If the battery compartment does not close properly, stop using the product, remove the batteries, and keep them away from children.
You can either view this video showing how to change the battery, or follow the instructions below.


