The Hikvision DS-PMA-WBELL is a compact, high-output two-way wireless warning siren designed for rapid deployment with compatible 433 MHz intrusion alarm control panels.

• Make/Brand: Hikvision
• Model: DS-PMA-WBELL
• Operating Frequency: 433 MHz RF two-way wireless communication
• Wireless Transmission Range: Up to 800 m in open field environments
• Acoustic Output: 105 dB high-decibel alarm output
• Data Security: AES-128 wireless encryption with RF collision prevention
• Power Supply: Micro-USB power input with 3.7V lithium battery backup for over 24 hours standby
• Tamper Protection: Integrated tamper switch alert on enclosure opening or surface removal
• Operating Temperature: -10 °C to +55 °C, humidity up to 95% RH (non-condensing)
• Compatibility: Hikvision 433 MHz wireless intrusion alarm hubs and control systems