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The Mauch 072 HS-050-HV is a high-voltage, 50A current measurement sensor board based on the Allegro ACS-50U Hall sensor. It is optimised for batteries up to 14S and gives accurate current and voltage data for Pixhawk 1 and APM flight controllers.
The listing says it ensures reliable UAV power monitoring, with high-quality 12AWG wiring for low-resistance current flow and stable, noise-free current measurement.
It is a compact board that suits high-voltage UAV power monitoring.
50A current measurement: Hall-effect technology.
Allegro ACS-50U: a reliable current sensor.
Voltage sensing for up to 14S: optimised for high-voltage packs.
Flight controller telemetry: accurate power data.
Pixhawk 1 and APM: designed for these controllers.
12AWG wiring: low resistance.
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.
High-voltage UAVs up to 14S with moderate current
Pixhawk 1 and APM power monitoring
Battery telemetry and logging
Flight-time estimation
Replacing a sensor board
The specification list gives a Hall-effect sensor, an Allegro ACS-50U sensor model, a maximum current of 50A, voltage optimised for up to 14S LiPo, a DF-13 6-pin flight controller interface, compatibility with Pixhawk 1 and APM and two 10cm 12AWG red current wires.
The page does not say whether an external BEC is needed; check the Mauch documentation to confirm the power arrangement for your set-up.
Model: Mauch 072 HS-050-HV
Sensor: Allegro ACS-50U (Hall effect)
Maximum current: 50A
Voltage: optimised for up to 14S LiPo
Interface: DF-13 6-pin
Compatible: Pixhawk 1, APM
Current wires: 2 x 10cm 12AWG (red)
1 x Mauch 072 HS-050-HV sensor board, 2 x 10cm 12AWG
Builders of high-voltage Pixhawk 1 or APM aircraft with modest current draw.
Up to 50A.
Up to 14S LiPo.
Allegro ACS-50U.
Pixhawk 1 and APM.
DF-13 6-pin.
Two 10cm 12AWG red wires.
| Brand | Mauch |
|---|---|
| Compatible Flight Controllers | Pixhawk 1, APM |
| Current Sensing | 50 A |
| Input Voltage | Up to 14S LiPo |
| Interface Type | DF-13 6-pin |
| Max Current | 50.000000 A |
| Sensor Model | Allegro ACS-50U |
| Selling unit | PCS |
