The detectors are PROFESSIONAL PIR detectors that offer SUPERIOR reliability. The kit includes a EN50131 compliant Live bell box of a slimline modern design with an integrated LOUD 115db siren, strobe, back up battery, warning / status lights and is fully tamper protected, one of the loudest bell boxes on the market !
The PIR motion detectors are of a new, modern, contemporary design and have a maximum range of 15 meters and feature high quality sealed optics that offers SUPERIOR reliability and accuracy over similar priced PIRs. They have SELECTABLE built in resistors if you wish to wire in double end of line configuration that is supported by this panel but if not standard wiring is also supported.