Water clear upper cover with 8 Ultra-Bright RED LED, or -BR version with 8 Blue + 8 Red Ultra-Bright LED
4 Selectable Alarm Tone
NC/NO Input Selectable
The ALM-Horn Series include 3 models, -BR with water clear upper cover, Blue + Red LED, ALM-Horn as standard siren, ALM-Horn-WF have WLAN connection complies with the IEEE802.11b/g/n standards, support Modbus TCP protocol & HTML, ALM-Horn-MRTU have RS-485 interface support Modbus RTU protocol.
ALM-Horn series device include 1-channel digital input for any dry contact output such as SA, BA, FA..etc, and 1-channel digital output Each device has 4 kinds of alarm tone, NC/NO input mode select by switchs. The ALM-Horn-WF & -MRTU support Modbus protocol, Which makes perfect integration for monitoring or control in SCADA software, HMI Modbus & Utilitys. ALM-Horn series have High Sound Pressure output, wide input power range & IP43 waterproof.
EFT (IEC 61000-4-4)
±2 kV for Power Line
ESD (IEC 61000-4-2)
±8 kV Contact for each Terminal
2 colors LED, Blue for System status, Red for Alarm status.
Dry Contact: Sink
Dry Contact, ON Voltage Level
Close to GND
Dry Contact, OFF Voltage Level
Open Collector (Sink)
+3.5 VDC ~ +30 VDC
Max. Load Current
Water clear upper cover with 8 RED UltraBright RED LED
-BR: With 8 Blue + 8 RED UltraBright LED
LPiezo Transducer Pressure Level
120 ±5 dB @10cm/3.0 KHz (W/O waterproof membrane)
SW1,2: Include 4 kinds of alarm Tone, SW4:Input Mode (NO/NC) select