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Dual Battery Monitor with Alarm - Flush Mounted

was $144.00

now $134.00 inc GST

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DOL_NLBMDAF - Dual Battery Monitor with Alarm - Flush Mounted

Due to popular request, National Luna has increased it's range of battery management products by introducing recessed versions of the Single and Dual battery monitors.

The recessed versions of these accurate monitors are ideal for panel-mounting in caravans, trailers, solar installations, boats or campers. Both single and dual battery monitors are accurate lead-acid voltage displays with easy-to-read colour bar-graph displays. The monitors use digital technology and are programmed to follow typical non-linear lead-acid battery curves.

National Luna Dual Battery Monitor with Alarm (suit all types of Dual Battery Systems and can also be used to measure 2 x 12v batteries in a 24v system)

National Luna Dual Battery Monitors are ideal for monitoring 2 lead-acid batteries in a single installation such as dual-battery systems in 4x4's and campers. The digital technology used in the dual monitors allows the non-linear characteristics of lead-acid batteries to be accurately followed.

A feature of one of the National Luna dual battery monitors is the independent negative - allowing this particular model to be used in vehicles with 24V systems. Dual battery monitors can be used independently, or in combination with any dual-battery system.


  • Simple installation
  • Accurate digital technology
  • Easy to read display
  • Low-battery alarm
  • Over-charge alarm
  • Display sleep mode
  • Ultra low power consumption
  • Polarity protected
  • 3.5 metre cable supplied
  • Suitable for any 12V lead-acid application


Physical size 110mm (l) x 66mm (w) x 20mm (h) (Single Monitor)
121mm (l) x 66mm (w) x 20mm (h) (Dual Monitor)
Mounting holes 4 x 3.5mm mounting holes
Power supply 8Vdc - 15Vdc (display range: 11.4V - 14.2V)
Low-voltage warning
DC voltage below 11.4V
Over-charge warning DC voltage above 14.65V
Cable 3.5 metre
Power consumption
Single monitor - 8mA (sleep mode) , 18mA Average
Dual monitor - 8mA (sleep mode) , 34mA Average

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