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Gateman WV-20 Review

Outside ViewProduct Homepage

Price: ~£100 including bluetooth module and 4 key fobs (mid-2016)

This lock was easy to fit, and only needed one hole to be drilled all the way through the door.

This is a "latch" style, where the bolt goes in to a receptacle attached to the door frame, so no chiseling of the door frame is required. Three different thickness shims are included in case the door does not align with the door frame properly.

Registering Keys

To configure a combination, you have to remove the battery cover, and press the "I" button, then type in the number sequence required, and then press "I" again. Up to 20-digit coes can be used.

To add RFID key fobs to the lock, press the "I" button, then on the outside of the door you touch the RFID fob to the the card symbol, and the lock beeps.
A number flashes up on the combination keypad, which increments every time you put a new fob on the card symbol.
When you have finished adding all the fobs, you press the "I" button again, and the lock beeps again.

The manual does not explain how to remove unwanted/lost keys, and we had to work this out ourselves.
There is no way of removing one key if it is lost or stolen.
They only way to do this is collect all the fobs, and then go through the process above again (which wipes all the previous fobs that were registered).
This means that this lock is not very good for places where it would be difficult for people to all give their keys in at the same time (ie rented accomodation).

Fobs from the Gateman Jet also work with this lock, which may give you some extra design choices.

According to one website, this lock conforms to the ISO 14443a standard for key fobs.

The bluetooth module is optional, and is very low power. On our standard Victorian solid wood door, the phone had to be placed touching the door to the right of the outside keypad before the lock would activate, although this is not a bad problem from a security point of view.

Inside ViewOperating the lock

There is an button to select whether the lock stays unlocked when activated, or locks automatically once the door is closed again, which is useful if you are going in and out a lot and don't want to keep using the key/combination or leave the door ajar.

From the Outside

To use a RFID fob, you press the button and then hold the fob to the card symbol on the lock.

To use the combination, you put your hand flat on the combination area, type the combination, and then put your hand flat on the conbination area again. This process, although seeming odd at first, means that you smudge or obscure the specific numbers you have pressed with your fingers.

To use the bluetooth option, you put your phone close to the lock (without pressing anything) and it activates. Range is limited. I had to put the phone against the wooden door for it to activate, although this could be said it makes the operation more secure.

From the Inside

Either press the "Open/Close" button or twist the knob to physically retract the bolt.


This lock takes 4 AA batteries, which are supposed to last for around a year.

If the batteries run out, there is a flap on the outside that you can open and touch a 9V PP3 battery to and then operate the lock.



  • Very easy to retro fit, as only 1 hole is required to be drilled into the door.
  • 3 different ways of unlocking the door from the outside
  • RFID keys seem to be standard with other Gateman products
  • Noises can be silenced if they get annoying
  • Includes a 80db alarm which is triggered if the inside temperature reaches 60degC


  • Excluding keys is not simple - all keys have to be re-registered from scratch (while skipping the key to be excluded) which could be difficult to schedule for everyone to be available at the same time.
  • Lock can always be unlocked manually from the inside without needing any security method. For proper home security, a secondary lock should be fitted.


Update 2019

This lock has subsequently died after light use for 18 months. Now when trying to use it, it just beeps 4 times, and the unhelpful manual sayd this means "return to installer", which is no use as it is out of warranty, and we installed it ourselves. A replacement (newer but similar) model has been installed, and a review of this will follow shortly.