ADVERTORIAL
FINALLY, A SHABBOS ALARM SWITCH YOU CAN TRUST
Elvey Security Technologies introduce the Gramma Switch
for activating home-alarm systems on Shabbat, endorsed by
the Johannesburg Beth Din.
After years of painstaking research and fine-tuning, Elvey Security Technologies have developed an alarm switch that can be used according to the halachic principles of Shabbat.
UNDERSTANDING THE HALACHA OF GRAMMA: The Gramma Switch is
based on well-established Jewish law, which permits indirect labour on Shabbat in specific cases of great need as defined by halacha. This law is