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WhisperPower Battery Monitor Pro with 500A Shunt (12V / 24V)

Part No. WP 40290311

£236.64 You pay £236.64 Incl VAT You pay £197.20 Excl VAT

RRP £249.10 £207.58

Save £12.46 (5.0%) Save £10.38 (5.0%)


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Brand WhisperPower
Model WBM-Pro
Voltage Supply voltage range 9V to 35V DC. Input voltage range for auxiliary battery 2 to 35V DC, for main battery 0 to 35V DC
Amps Supply 7mA at 24V DC, 9mA at 12V DC.
Cut Out Required Fits a 52mm (2") diameter hole
Diameter Overall: 64mm
Depth 78.5mm Overall
Length Shunt: 87mm
Width Shunt is 45mm
Height Shunt is 17mm (base), 35mm (including fasteners)
Protection Rating IP20 (front of gauge only IP65)
Operating Temperature -20°C to +50°C

The WhisperPower WBM-Pro battery monitor is designed to provide a wide range of data relating to one or two battery banks. It is dash mounted and very easy to use and set up - featuring a plug and play installation. The gauge is black and grey in colour and is constructed from ABS. Battery Monitor Pro features a backlit LCD screen which displays the following battery readings:

  • Voltage
  • Current
  • Consumed amp hours
  • Remaining battery capacity
  • Battery time remaining

This critical battery information can be quickly accessed through the easy to use interface. All the data provided can help you keep an eye on the condition of the battery or batteries and helps you know when to recharge your battery and when you may need to replace your battery. It also features various programmable alarms to alert you of certain conditions occurring.

Whisper Power WBM-Pro is supplied with a 500 amp battery shunt which is installed in the circuit to act as a resistor. This helps measure and regulate the power going in and out of your batteries.

  • Battery capacity range: 20Ah to 9990Ah


  • Voltage reading accuracy: ±0.01V (between 0V and 35V)
  • Current reading accuracy: ±0.1A (between 0A and 200A), ±1A (between 200A and 9999A)
  • Capacity reading accuracy: ±0.1Ah (between 0Ah and 200Ah), ±1Ah (between 200Ah and 9990Ah)
  • State of charge reading accuracy: ±0.1%
  • Time remaining reading accuracy: ±1 minute (between 0 hours and 24 hours), ±1 hour (between 24 hours and 240 hours)
  • Temperature reading accuracy: ±0.5°C (between -20°C and +50°C)
  • Voltage measurement accuracy: ±0.3%
  • Current measurement accuracy: ±0.4%

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