Siren Marine Wired Canvas Snap Cover Sensor [SM-ACC-SNAP] Marine Navigation & Instruments | Transducers The RH-1 loud horn is

The RH-1 loud horn is for the hearing impaired or installation with extreme ambient noise levels

and has a single push call button so you can quickly send out your distress message

Thermal Resolution: 320 x 240 resolution for clear

Voice over IP (VoIP) adapter

Siren Marine Wired Canvas Snap Cover Sensor [SM-ACC-SNAP] Marine Navigation & Instruments | Transducers The RH-1 loud horn isWired Canvas Snap Cover Sensor The canvas snap sensor is ideal for boats that have a canvas cover or part cover, and replaces a canvas snap for entry alert. When the normally closed alarm circuit is opened, it triggers an entry alert to the boat owner and can also be rigged to sound an audible alarm. A snap cover sensor is a perfect solution for stopping unwanted access to the boat and expensive parts. Specifications: Dimensions: 1. 25in (body) 12in