Recommended lock for EL100 interface

[mrsgoggins]

I am looking for a simple lock to keep the two leaves of my entrance gates together when closed. Security isn't a concern, it is just to stop the gates moving and being pushed apart by the children.

I understand I will need the EL100 interface to deactivate the lock when I send an open command. What simple locks would people recommend?

The gates are wooden, 5 bar style, and the electrics are the Aria 400.

Thanks.