Model 520 - Available in Red (520R) or White (520W) Battery Type: RF Battery 3.6 Vdc at 19Ah and Alarm Batteries (2) 3.6 Vdc at 13Ah Battery Life: 12 Months Minimum Battery Replacement: Upon Low Battery Report Tamper Tilt Switch Sounder: Minimum75db at 10 Feet Testing: Follow the 520 CWSI Manual and NFPA 72 or Local Requirements Transmission: Complies with FCC Part 15 Test Transmission: 200 Second Supervisory Polling Compatibility: With CWSI Control Panel, refer to Product Manual
