Wireless Outdoor Sounder

FW2-Neptune is a wireless two-way self-powered outdoor siren. It features fully supervised communication, highly reliable operation and optimal wireless performance, including visual and audio notifications. FW@-Neptune can be configured Over-The-Air.


Communication Protocol Freewave2™ two-way ISM GFSK with 5 frequencies & LBT
Frequency Band 868MHz or 916MHZ
Identification Unique ID serial number – 24 bit
Range 500m open space
Sound Pressure Level 105dB
Siren Tone yelp
Frequency Range 2700 ± 500 Hz
Indications Flash LED during transmission (Arm/Disarm) and Activation
Flash Light Power LED (90 Lumens)
Current Consumption Standby Average: 110uA, External power 9-12 VDC standby 3mA, Alarm 0.83A
Power Supply 9V-15V / 2A
Siren Alarm Period 2 min/15 min (programmable)
Arm/Disarm Indication LED Flash : Arm-1 Disarm-3 LED Flash with Beeps : Arm-1 Disarm-3
Supervision Sync signal every 1 min
Tamper Switch Normally Closed
Battery Battery pack Lithium 3.6V / 13Ah
Battery Life Up to 5 years (Based on 2 min Piezo operation/month)
Low Battery Level / Indication 3.1V / LED Flash @ Arm/Disarm
LED Indicator LED is ON during ALARM and TROUBLE
Operation Temp -40°C to +70°C
IP Rating IP 55
Dimensions / Weight 310mm x 205mm x 75mm / 1.2 Kg (Without Battery)
Compliance EN50131 Grade 2 Class IV

Declaration of Conformity

Installation Instructions