Thomas Jacks Ltd are a distributor and as such only supply trade customers. We do not sell direct to the public. If you are a retailer and would like to sell our products please contact us on 01789 264100.

Thomas Jacks Ltd will not send any items to members of the public and therefore do not drop-ship. If you are a retailer and would like to sell our products please contact us on 01789 264100.

We are always happy to try and help out people if they would like to view a product before buying. We have a 22 metre dark tunnel so you won't have to wait until it is dark, all we would ask is for you could phone us and make an appointment - please remember that we do not sell direct to the public.

Check that there is a fully working battery in the unit. If it is a rechargeable battery then make sure that it is charged. Ensure the battery cap has located correctly and is screwed down properly.

Make sure that the eyepiece and the lens are screwed in properly.

You can providing you leave the lens cap on. There is a tiny hole in the lens cap to enable this but we would not advise it because it will shorten the life of the tube.

There is a MPR (Mobile Player Recorder) available which is best used with the Ranger Digital and comes as a kit (28041VK).

These are called blemishes and in the instruction manual there will be an imaging target sheet. Compare the blemishes on your night vision device to that and if you are unsure the unit can be sent back to us and we will check it for you.

Yes you can add a (DSA) Day Scope Adapter to the unit. We have 2 types, one for Yukon and one for Cobra Optics. You can view these in the weapon sights if you are looking to buy the full system (night vision monocular and DSA) or if you have the night vision device already you can find the DSA in night vision accessories.