$249.00

A USB current sensor with many output options

Want to know how many amps your motor is pulling? Want to know how much juice you are giving your batteries? Count some Coulombs? You need a current sensor-our AutoBlock AMP can do all of this and more:

  • measures current flow up to 1000 AMPS in BOTH DIRECTIONS
  • HIGH RESOLUTION - down to less than 1/10 of an Amp.
  • FAST - sampling at up to 60 TIMES PER SECOND.
  • Hall-effect sensor is galvonically ISOLATED from the high voltage system
  • Communication via USB or directly drive "tachAmmeter" or Fuel gauge.

    • We designed the AutoBlock AMP to provide many options for you to communicate with your system. Use a standard USB cable for a digital link to some sort of USB host, or display instantaneous current flow on a repurposed tachometer (we like to call it a "TachAmmeter") and estimated state of charge with a fuel gauge. You can program the specifics of these outputs through the USB connection.

    Setup and operation:

    The AutoBlock AMP is easy to install and use. The large 1" hole allows many sized wires to pass through. Use the optional cable mount to attach to a cable or simply bolt it or wire-tie to something using the two 1/4" holes.

    A basic setup of the AutoBlock AMP is shown here. A large gauge cable passes through the AutoBlock AMP and secured using the optional cable mount. The magnetic field created by electricity flowing through this cable is measured by a Hall-effect sensor inside the AutoBlock AMP. This analog signal is filtered, scaled, calibrated and finally converted to digital. This digital signal is sent via USB to the computer 60 times a second using our "Open-API packet structure"

    If a USB connection is not needed, the AutoBlock AMP can be directly powered with a 12 (or 5 volt) power source. In this case, display of instantaneous current flow and time-dependent current flow can be displayed by other means:

    Connecting to a "TachAmmeter"

    First of all - what is a "TachAmmeter"? This is our play-on-words to describe using an analog tachometer gauge to display instantaneous amp flow. Our AutoBlock AMP can provide the correct signal needed to make a standard tachometer display amp flow. Only this time, we multiply by 100 and not 1000 as shown on some gauges.

    Connecting to a Fuel gauge

    Our AutoBlock AMP can keeping track of how much current has passed through a particular cable over a certain time period. By keeping track of the current leaving a battery pack and integrating over time, we are able to get a pretty close estimation of how much energy is left in a battery pack. The AutoBlock AMP can then display the SOC on your car's original fuel gauge.

    AutoBlock AMP available for PRE-ORDER. Ship date has not been set, as we are still in the late stages of development and testing.