SR-740 PG2 is a two-way wireless outdoor siren (IP55). It provides the perfect security solution for home owners with a PowerMaster wireless intrusion alarm system who are looking for an affordable and easy to install outdoor siren. It excels in offering cabling-free installation and optional extended time between battery changes.

SR-740 PG2 uses Visonic's ground-breaking PowerG technology, which combines several field-proven, advanced technologies and the highly reliable AES encryption method. The combination of technologies delivers an extended transmission range, far greater than the industry standard - enabling a very large distance between the siren and the control panel. It also provides an extended battery life that makes it easy and affordable to maintain.

The siren's two-way, fully supervised communication with the control panel provides visual and audial notifications of intrusions, fire alarms, low battery and communication disruptions.

SR-740 PG2 Features:
Sleek design and robust weatherproof housing (IP55) with high power strobe light
Differentiated alarm sounds for intrusion and fire
Loud 105 dBA Piezo siren @ 1 meter
Transmission range is far greater than the industry standard - enabling repeater-free installations even in large premises
Prolonged battery life (8 years with typical use)
Battery type: Four 3.6V/3.5AH Lithium independent cells
Visible signal quality indication shown on the device
PowerG two-way Frequency Hopping Spread Spectrum FHSS-TDMA technology - provides robustness and reliability closer than ever to wired systems
Employs the proven AES-128 (128 bit key) advanced encryption algorithm for correct message identification and protects the alarm system from code grabbing and other attacks
Continuously measures communication quality and automatically sets transmission power to the minimum required for reliable communication
Configured from the panel – no hardware switches and no need to re-open the siren once closed
Easy, cabling-free installation
Double tamper protection (wall and cover)
Choice of red, blue, orange or white (transparent) lens with large screen-print area for company logo and information
Compatible with PowerMaster intrusion alarm systems and PowerG receivers