The Nash Siren R3 Alarm has an intelligent Sensing microchip technology eliminates false indications, giving you the ultimate insight into what is happening in your swim.
This Nash Siren R3 Receiver features an anti-theft warning alarm.
This Nash Siren S5R Receiver has high output adjustable volume.
The Nash Siren S5R Alarm has a Super sensitive bite indication.
The Nash Siren S5 Alarms - Super sensitive bite indication available in Red, Blue, Purple and White.