The Nestera Automatic Door Opener can be set to open and close dependent on light levels or at specific times, so you don't have to wake up when your chickens do! It also includes a manual open and close function. Designed and manufactured using high-grade electronics housed in a weatherproof casing, this door opener is very simple to fit, set up and operate and includes all fixings, batteries and operating instructions. It also features extra large buttons so you can programme the unit with your gloves on in the winter. Capable of lifting 3.3lb, the unit is extremely reliable and includes a 3-year warranty. Suitable for fitting to all Nestera plastic chicken coops with sliding doors and other coops with vertical doors. PACK CONTENTS 1 x Nestera Automatic Door Opener, 1 x User Manual, 4 x 1" A2 Stainless Steel M4 Bolts, Washers and Nyloc Nuts