We were alerted by Moshe Katz, who runs an IT company in Wimbledon and whose father escaped Lithuania before the Holocaust.
He cleaned and packed the equipment and arranged for it to be shipped immediately.
Another donor has also volunteered to cover the cost of sending it to Lithuania.
Mr Katz said: “Within a week the shul had a terrific system - the cameras are already up and running.
“Thank you to the JC for your swift help and support and thank you to the donors for making this possible.”