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Hummingbird Wireless Battery Monitor Kit

Original price $295.95 - Original price $295.95
Original price
$295.95 - $295.95
Current price $295.95

Hummingbird Electronics' RF Battery Monitor allows the user to monitor up to 16 remote battery’s without having to run wires to them. There is no costly installation required making it perfect to monitor a large fleet of batteries or a single application like a caravan, boat, fridge and anything else that runs on a battery.

Powerful Performance

The RF Battery Monitor measures battery voltage of up to 16 remote batteries and displays it on a remote colour screen. Alarm levels can be set so that the unit warns the user with a screen colour change and an optional buzzer. Both minimum and maximum alarm voltages can be set by using the keypad in conjunction with an on-screen menu. Each battery can be given a name that is relevant to its application.

It uses long-range remote frequency technology meaning that communication is reliable in all configurations. Ultra-low power voltage transmitters can be left permanently connected to batteries and do not need to be switched off when not in use. Both 12 and 24V batteries can be monitored simultaneously.

The RF Battery Monitor is the perfect application for monitoring battery operating parameters across your entire vehicle fleet. It gives you the power to monitor and quickly identify unwelcome battery conditions as well as avoid impromptu downtime ultimately extending the life of your batteries.

Installation is as simple as attaching the red and black terminals on the transmitter to the battery that needs to be monitored and plugging the receiver into a cigarette lighter socket. The receiver can also be permanently powered if desired.

The receiver is mounted with a flexible windscreen-mount, but can also be attached using any standard camera mount including those available from RAM.

RF Battery Monitor Transmitter

The RF Battery Monitor transmitter uses a long-range RF technology meaning that communication is reliable in all configuration of car and trailer. Ultra-low power voltage transmitters are able to be left permanently connected to batteries and do not need to be switched off when not in use. Both 12V and 24V batteries can be monitored.

The standard kit comes with one RF Transmitter


  • Uses RF technology to transmit voltages
  • Buzzer for under or over voltage
  • Changes colour for under or over voltage
  • User-adjustable limits per battery
  • Optional local battery monitoring
  • Multi-voltage – simply plug into your cigarette lighter plug
  • Cigarette lighter connection
  • Precision 100mV measurement
  • Ultra-low power transmitter can be left connected to batteries 


Input Voltage Minimum 9V; Maximum 36V
Mounting System Windshield Mount
Power Consumption Screen: Typical 0.2W (10mA @ 12V; 7mA @ 24V)
Power Consumption Transmitter: Typical 0.5mA (50 Microamps)
Acquisition Time, Power Up 30 Seconds to acquire RF Devices
Resolution 100mV
RF Frequency 433 MHz
Range 100m Line of Sight
Operating Temperature -20℃ to 55℃, to 95% relative humidity
Weight (g) 160
Height (mm) 17
Length (mm) 74
Warranty 1 Year

Customer Reviews

Based on 1 review
Paul Langley

Great service
Part delivered very promptly.
Very happy