PSA Centrii Wireless Alarm Outdoor Siren/Strobe

The PSA Centrii INTWS901 is a wireless outdoor siren with a built-in strobe, designed for the CENWAST1 alarm system. Mounted on an outside wall, it shows that the property is protected. If the alarm is triggered, the siren and flashing strobe alert the street and nearby neighbours.

The unit communicates with the alarm system by radio, so no signal cable is needed back to the panel. Its lithium backup battery keeps it working through a mains outage, and it can be managed from a smartphone app as part of the wider system.

Key features

• Loud siren rated at up to 115dB, plus a flashing strobe lens
• LED status signals: alternating flashes when arming or disarming and rapid flashes during an alarm
• A tamper switch sets off the alarm if someone tries to remove or interfere with the unit
• Volume and alarm duration are both adjustable
• Weather-resistant IP56 ABS housing in white and blue
• Wireless link on 433MHz FHSS, with a receiving range of up to 80m in open space
• 3.7V/2200mA lithium battery for backup power

Installation notes

Main power is DC 12V. An optional 6V 1A solar supply can also be connected. Rated for -25°C to +55°C and humidity up to 95% (non-condensing). The unit measures 288 x 250 x 56.5 mm. Standby draw is under 12mA, rising to under 350mA when the alarm sounds.