- Acoustical signaling: piezo transducer
- Optical signaling: ultra bright LED
- Inner metal shield
- Tamper protection against opening and removing from mounting surface
- Supply voltage (±15%) 12 V DC
- The intensity of sound 120 dB
- Operating temperature range -35…+55 °C



BR 11790
US 5119
IN 4581
VN 4331
CN 2291
MY 1768
AR 1546
SG 1512
