The JA-150A wireless internal siren is designed to sound alarms, exit and entrance delays or to indicate other activations in the alarm system. The siren is equipped with a button with programmable reactions. It is addressable and occupies one position in the alarm.

Specifications
- Power: 230 V, 50 Hz
- Communication protocol: 2 way Jablotron wireless protocol 868 MHz
- Backup-battery: BAT-3V2-CR2/LiFePo4
- Recharge time: min. 24h/máx 72h
- Maximum standby consumption: 0.6W at 230VAC
- Security level: grade 2, EN 50131-1
- IP Rating: IP43
- Operating temperature range: -10º to 40ºC