jablotron MAESTRO JA-65 Installation Manual page 29

GS-130, GS-133 Gas leak detectors - trigger a Fire alarm when any combustible gas is detected (natural gas, city gas,
propane, butane etc.). The detector has a built in siren and an output relay. The relay, for example, can be wired to an
electrical valve to turn off the gas supply when a leak is detected. Model GS-130 is powered directly form the AC power
network and model GS-133 is powered from the control panel - 150mA/12V.
SA-105, SA-107 indoor sirens - are powerful ordinary piezo sirens with loudness in level of 120dB/1m, power consumption
about 250mA/12V.
OS-300, OS-305 outdoor sirens - are double covered with backup power supply. External housing is made of a highly
resistive polycarbonate. Siren has cover class IP44, built in DC to DC converter for optimal back up battery charging. Both
models have loudness in level of 118dB/1m. Model OS-300 uses a magneto-dynamic sounder, OS-305 a piezo one. The siren
uses balanced loop type trigger input for higher safety and it has a sophisticated tampering protection..
Alarm system JA-65 MAESTRO - 29 - MFM51202