ASEC Digital Door Lock AS3300 Series with Oval Knob and Optional Holdback

No keys to lose. No locksmith to call. Just push the code and you're in.

The ASEC AS3300 Series Digital Door Lock with Oval Knob is one of those products that quietly makes everyday life easier. Whether it's a back door that half the household uses, a rental property where tenants change, or an office where you're tired of cutting keys – this lock solves the problem without any fuss.

Why people choose the AS3300

The big thing here is how simple the code change is. You don't need to take the lock off the door, dig out the instructions, or call anyone. The code resets directly on the door in a matter of seconds. That matters when a contractor's been on site, when someone moves out, or whenever you just want a fresh start on your security.

With over 4,000 possible code combinations and 14 buttons, there's no realistic risk of someone guessing their way in. 

The optional holdback function is a genuinely useful touch. When you need the door to stay open – during deliveries, move-in days, or busy periods – you can hold the latch back without propping or wedging anything. It resets to normal operation automatically.

Solid where it counts

Designed for light-to-medium duty use, the AS3300 is rated for both internal and external doors. It handles door thicknesses from 35mm to 65mm, and the handing is fully reversible, so it fits left-hand and right-hand hung doors without any adapters. The 8mm spindle and supplied 60mm latch mean it slots into standard door prep without modification in most cases.

The Satin Chrome finish on the oval knob is clean and neutral – sits equally well on timber, UPVC or composite doors, and doesn't show fingerprints the way a polished finish would.

A practical fit for:

• Residential front and back doors
• Rental and HMO properties where regular code changes are essential
• Internal office and commercial doors
• Anywhere you want keyless convenience

In the box: ASEC AS3300 digital lock body, oval knob, 60mm latch and strike plate

Backset         60mm
Case Depth Required     85mm
Door Thickness         35mm to 65mm
Spindle         8mm
Width             41mm