Right now there are 18 deals from Amazon Resale, formerly Amazon Warehouse Deals, in Electronics › Security & Surveillance › Accessories › Access-Control Keypads. These are inspected returns and open-box items that Amazon sells and ships itself. WarehouseHunter puts each one next to its current new price, so you can see what you save at a glance.

Brands with the most offers here: Kwikset, HID, Mighty Mule, Seco-Larm, System, Universal, Yale. Every item is a one-off, so the stock moves all day and new deals keep arriving.