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Yes, I've copied and pasted this description from a previous deal for teh same item. not as good as the $15 viewed from Stafford Bunnings but still pretty good.
Yes, this is yet another post on the Click LCD digital door viewer, but now it's at a guilt-free price of $20!
Buy some now as early Christmas presents. Your friends and family will absolutely love you for it*.
Excellent for kids or old parents who find it hard to look through a peephole that's high up.
That was at Bunnings Rothwell QLD.
The installation instructions are on the back of the pack:
http://img534.imageshack.us/img534/6328/clickviewerinstructi…
It's a drop-in replacement so if you already have a viewer, you shouldn't need to drill anything. The display sticks to the door with double sided tape. Well technically it's held there by the door viewer tube, the double sided tape just prevents it from rotating and damaging the ribbon cable. You could probably just use blutack if you don't want to use the included double-sided tape.
*no promises there
I shall send you my description copyright claim shortly. :)