Siren Marine Battery Sensor F/Siren 3Battery Sensor for Siren 3Monitor battery voltage with the Wireless Battery Sensor, and never worry about a dead battery again Attach the Battery connector to one of the boat&rsquos batteries and plug the other end into the Wireless Module Link the module to the Siren 3 Pro and receive alerts if the battery volt..

Siren Marine Entry Sensor F/Siren 3Entry Sensor for Siren 3Receive instant notifications if there is unauthorized entry on the boat Perfect for securing lockers, doors, and hatches Install the Wireless Module on one side of the door or locker and the Openclose Magnet on the other side Link to the Siren 3 Pro and receive alerts when the door or lock..

Siren Marine External Gps Antenna F/Siren 3 Pro Includes 10' CableExternal gPS Antenna for Siren 3 Pro Includes 10 cableOptimize gPS tracking of your boat with the External gPS Antenna When you remotely mount the External gPS Antenna, the Siren 3 Pro will override the use of the internal gPS antenna*compatible with the Siren 3 Pro ONLYSpecification..

Siren Marine High Water Sensor F/Siren 3High Water Sensor for Siren 3The Wireless High-Water Sensor detects if there is water in the bilge and sends an alert to the Siren Marine App if water has risen above the preset level Mount the Water Probe at the desired height in the bilge and plug the other end into the Wireless Module Link the module to th..

Siren Marine Temp Sensor F/Siren 3Temp Sensor for Siren 3Monitor the temperature of the cabin, engine room, bait locker, or fridge Place the Wireless Module in the area that needs to be monitored, link the module to the Siren 3 Pro, and receive alerts if the temperature exceeds or drops below a preset level The optional temperature probe can be use..