The alarm system was installed in 500 households in the township, in the north of Johannesburg.
The Mameza community alarms was launched last year to help eliminate crime and violence. The alarm is said to be connected to the police, notifying households if there are any intruders in their homes. The alarm also has a silent panic button to notify police, local patrols and neighbours if there might be any suspected crime taking place. The alarms were distributed to RDP houses and shack owners.