M550/M650 Solar Marine Light Remote Programming

NexSens M550 and M650 Solar Marine Lights purchased with CB-Series data buoys will most often arrive pre-programmed for use. However, the IR remote may be used to change configuration settings using the codes provided in the table below. Note that activation commands need to be sent with the remote facing the side of the beacon. If no response to the below commands is elicited, try changing the angle of the remote with respect to the beacon.

NexSens M550 1-3NM Solar Marine Light product page

Figure 1: NexSens M550 1-3NM Solar Marine Light

NexSens M650H 4 Nautical Mile Solar Marine Light product page

Figure 2: NexSens M650H 4 Nautical Mile Solar Marine Light


Beacon Commands

Command TypeRemote Input
(M550 Beacon)
Remote Input
(M650 Beacon)
Activate RemoteHold PWR button for 2 secondsHold PWR button for 2 seconds
Unlock CodeN/APWR 753 √ (must be sent before the first command)
Power OnHold PWR button for 4 seconds*Set desired flash code
Power OffHold PWR button for 6 secondsPWR 000 √
Check Battery Status PWR 810 √  or  iPWR 810 √
Check Battery Response3 flashes – Good (>70%)
2 flashes – Charge (14-70%)
1 flash – Low (<14%)
10 flashes – Good (>4.2V)
7 flashes – Charge (3.9-4.2V)
5 flashes – Low (<3.9V)
4 flashes – Bad (Replace)

*For the M650 beacon, the effective intensity setting  determines which flash codes will be sustainable given the solar recharge capability. For example the 066 Flash Code will not be accepted with the default 25cd intensity setting and must be reduced to at least 15cd for it to be applied. Once the intensity is reduced via the display interface at the base of the beacon it will be possible to then set the code.


Solar Marine Light Manuals & Quick Start Guides

Different flash codes may be programmed if desired. Reference the manuals below for a complete list of available flash codes and instructions for setting the code. Reference the quick start guides for confirming beacon battery status and mounting to NexSens CB-Series data buoys.