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The Mauch 074 HS-100-HV sensor board is a precision 100A current and voltage monitoring solution for professional UAV systems. It is optimised for batteries up to 14S and uses an Allegro Hall sensor to deliver accurate power data to Pixhawk and APM flight controllers.
The listing describes an Allegro ACS-100U based current sensing design, high-quality 12AWG wiring for minimal power loss and a clean signal output for precise telemetry and logging.
The board needs an external BEC, which also powers the flight controller, GPS and telemetry modules, so you can choose the power configuration that suits your aircraft.
100A current measurement: Hall-effect sensing.
Voltage sensing: optimised for high-voltage 14S LiPo batteries.
Allegro ACS-100U: a reliable current sensor design.
12AWG wiring: low resistance, minimal power loss.
Pixhawk and APM compatible: DF-13 6-pin interface.
Clean signal output: precise telemetry and logging.
A current and voltage sensor board sits in the main battery line, between the battery and the rest of the aircraft. A Hall-effect sensor measures the current without adding a large resistor to the path, and a voltage divider scales the battery voltage down to a level the flight controller can read. The board then sends both values to the flight controller as analogue signals, which it uses for battery-level warnings, failsafe decisions and flight logs.
The sensor board itself does not power the flight controller. It needs a separate regulator (a BEC) that supplies the flight controller, GPS and telemetry modules. Choose a BEC whose input range matches your battery, and connect the sensor's signal cable to the power-monitor port of the flight controller.
For accurate readings, set the voltage divider and amps-per-volt values in the flight controller's battery monitor to match the board, and check the reported voltage and current against a multimeter and a known load. A wrong scale factor can make a battery look fuller than it is. Solder the heavy-gauge wires carefully and protect the joints with heat-shrink.
Pixhawk 1 and APM based UAVs
High-voltage 14S propulsion systems
Industrial drone power monitoring
Telemetry and data logging
Setups with a separate BEC
The specification list gives a current range of up to 100A, an Allegro ACS-100U Hall sensor, voltage measurement optimised for up to 14S LiPo, two 10cm 12AWG red input wires, a DF-13 6-pin flight controller interface, a 10cm connection cable and compatibility with Pixhawk 1 and APM.
An external BEC is needed for operation. This product page showed the item as out of stock when it was read, so check availability before ordering.
Model: Mauch 074 HS-100-HV
Current range: up to 100A
Sensor: Allegro Hall sensor ACS-100U
Voltage: optimised for up to 14S LiPo
Input wiring: 2 x 10cm 12AWG red wires
Interface: DF-13 6-pin
Cable length: 10cm
Compatible: Pixhawk 1, APM
Power: external BEC required
1 x Mauch 074 HS-100-HV sensor board, 2 x 10cm 12AWG
Builders of high-voltage Pixhawk 1 or APM aircraft who need a 100A sensor.
Up to 100A.
Up to 14S LiPo.
Allegro ACS-100U.
Yes, an external BEC is required.
Pixhawk 1 and APM.
Two 10cm 12AWG red wires.
| Brand | Mauch |
|---|---|
| Compatible Flight Controllers | Pixhawk 1, APM |
| Current Sensing | 100 A |
| Input Voltage | Up to 14S LiPo |
| Interface Type | DF-13 6-pin |
| Max Current | 100.000000 A |
| Sensor Model | Allegro ACS-100U |
| Selling unit | PCS |
