ALERT Portable, DIY Man-Overboard Alarm System


ALERT Portable, DIY Man Overboard Alarm System ™, combines ALERT2 Receiver, two ALERT418 Transmitters, heavy-duty stand, antenna, cable, and 110volt power converter. Set-up within minutes. No programming needed. No third-party installation required. You are ready for any fall-overboard alert within seconds. In addition to the internal alerting, the unit can be wired to perform engine kill or other external alerting capabilities.


Protect your crew easily and affordably with our ALERT Portable, DIY Man-Overboard Alarm System ™. Combining the fastest man-overboard alerting technology of our ALERT Man-Overboard Alarm System ™ with a highly durable and portable stand, you can take ALERT Man-Overboard Alarm System almost anywhere. On the ship or dockside, your crew is protected within minutes, alerting personnel of a fall overboard situation within seconds!

Built Specifically For These Challenging Times

People are filled with uncertainty and worry, fall overboard doesn’t have to be one of those worries. Ideal for inland and coastal waters, the self-contained system is comprised of an ALERT2 Receiver and two (2) ALERT418 compact water-activated transmitters worn on a work vest. If the deckhand falls into the water, it triggers the ALERT Receiver, which sounds a piercing alarm. It can also be wired to stop engines, set a Chartplotter waypoint, and/or into a ship-wide notification system.

Realizing that the MOB awareness need is greater than ever, and the concern of having third-parties on-premise to install any electronic solution, Emerald Marine Products has packaged it’s ALERT Man-Overboard System to be easily implemented in almost any location. Simply plug the unit to a 110volt outlet or wire to a 12volt system and you are ready to protect your employees. No need for extensive installation, outside contractors, or complicated programming. Watch the video to see how the unit performed on a tugboat when testing out the ALERT system. You can view a video of the unit on board a tug. Click Here.

Now is the time to protect your workers. Don’t let the concerns of COVID-19 stop you from protecting your employees from a fall overboard fatality. We know that MOB’s occur regardless of viruses. As the weather warms up and workers work harder than ever, protecting your employees provides them the confidence they need to do a job well.

The ALERT Portable, DIY Man-Overboard System Consist of;

ALERT2 Receiver

Two (2) ALERT418 Transmitters in spray-tight pouch or clip to attach to inflatable Personal Flotation Device (PFD)

ALERT Portable Stand

6” connection cable

14” Stainless Steel Antenna

110Volt Power Adapter

Other ALERT Portable, DIY Man-Overboard Alarm System Configurations Available;

You can configure the ALERT Portable, DIY Man-Overboard Alarm System anyway you like that works best for your company by purchasing our units separately.

Purchase the Portable Stand(AA105) then select the ALERT Man-Overboard Receiver (ALERT2 or ALERT418) that best fits your man-overboard alerting needs at your location. In addition to the Receiver, you would purchase the appropriate ALERT Man-Overboard Transmitters (ALERT2 in nylon pouch, ALERT2 in a spray-tight pouch or ALERT418 in a spray-tight pouch) that works best for protecting your employees. Intrinsically-Safe Certified Transmitters are also available in model numbers AT201 and AT202.

Additional information

Weight 6 lbs
Dimensions 5.5 × 4.75 × 3.75 in


ALERT2 Receiver (see individual spec’s under its own product page)
Two (2) ALERT418 Transmitters (see individual spec’s under its own product page)
ALERT Portable Stand weight is 2 pounds
ALERT Portable Stand measures 4.75″ long, 5.5″ high and 3.75″ deep.
6″ LMR240 cable with BNC connector attached to ALERT Receiver, and PL-259 connector to attach to the antenna.
14″ stainless steel antenna receiving the 418MHz frequency of the ALERT Transmitters.

ALERT Portable Stand also includes a 110Volt Power adapter (AA102) to connect the unit to any wall power supply. You can also connect to a 12Volt power supply using the green terminal wiring block.