There are two DMK Box hardware models. Model 11A-GPS includes a GPS receiver, but is otherwise identical to Model 11A. The DMK App is available in one universal version for iOS.
The DMK AEM14 will input voltages from analog engine sensors and tachometer and output NMEA 2000 engine data. It is also a USB to NMEA 2000 gateway and can translate other NMEA 2000 data to output through the USB Port. The device can work alongside existing gauges or wired directly to engine sensors.
Analog Inputs The AEM14 has inputs for 4 configurable analog senders, (oil pressure, temp, ect.) plus one tachometer sender, plus three separate voltages. (Battery 1, Battery 2, and Alternator)
Tachometer Input The tachometer input on this device can be configured to either take tachometer inputs from an alternator, ignition coil, or magnetic pickup. This input is highly configurable, reliable, and robustly engineered.
Gateway Connectors The device has connections for USB and NMEA 2000.
A yacht installer wires a DMK Box to a vessel's existing DC power source and instrument bus.
When an instrument sentence in one of the supported protocols arrives at the DMK Box, it is wrapped in a UDP packet and sent to connected devices on port 1703.
iOS devices establish a connection to a DMK Box by setting up an ad hoc Wi-Fi connection through the iOS Settings interface.
When the DMK App runs on a connected iOS device, it listens for UDP packets on port 1703.
As the DMK App receives each UDP packet, it identifies the protocol, then updates its instrument views for any sentences it knows how to parse.