Wiring diagrams for Digital Matter

Updated
  • Updated on Oct 16, 2025
  • Published on Oct 15, 2025
  • 1 minute(s) read
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Digital Matter Hawk

Watermeter

Connecting a watermeter using Reed switch or H2Q.

Reed switch wiring instructions

  • Green wire → I/O7 DIN1

  • White wire → VIN

Hawk plug-in board model RS-1 with various input and output connections labeled.

H2Q wiring instructions

  • Red wire → I/O7 DIN1

  • Blue wire → GND

  • Black wire (Battery) → GND

Hawk plug-in board model RS-1 with various input and output connections labeled.

Ratiometric

Connecting a Ratiometric using BD sensor 5V, Huba sensor 3.3V or Keller sensor 3.3V.

BD sensor 5V wiring instructions

  • Green wire (Data) → I/O1 AIN1

  • White wire (Power supply 5V) → I/O2 +VBOOST OUT

  • Brown wire (GND) → I/O6 SWGND

Hawk plug-in board model RS-1 with various input and output connections labeled.

Huba sensor 3.3V wiring instructions

  • Green wire (Data) → I/O1 AIN1

  • Brown wire (Power Supply 3.3V) → I/O5 +3.3V Out

  • White wire (GND) → I/O6 SWGND

Hawk plug-in board model RS-1 with various input and output connections labeled.

Keller sensor 3.3V wiring instructions

  • Red wire (Data) → I/O1 AIN1

  • Black wire (Power supply 3.3 V) → I/O5 +3.3V Out

  • White wire (GND) → I/O6 SWGND

Hawk plug-in board model RS-1 with various input and output connections labeled.

4-20mA sensor

Connecting a 4-20mA sensor using BD 18.605G or Ratiometric sensor.

BD 18.605G wiring instructions

  • White wire (Voltage) → I/O2 +VBOOST OUT

  • Brown wire (4-20mA) → I/O9 4-20mA

Hawk plug-in board model RS-1 with various input and output connections labeled.

Attention!

The following information, regarding the 4-20mA sensor combined with Ratiometric sensor, is no longer applicable. We will try our best to provide you with the correct information as soon as possible.

Ratiometric sensor wiring instructions (AdBlue tank)

  • Black wire (Voltage) → I/O2 +VBOOST OUT

  • Brown wire (4-20mA) → I/O9 4-20mA

Hawk plug-in board model RS-1 with various input and output connections labeled.

Ratiometric sensor wiring instructions (Diesel tank)

  • Green wire (Data) → I/O1 AIN1

  • Black wire (Voltage) → I/O5 +3.3V OUT

  • Brown wire (GND) → I/O6 SWGND

Hawk plug-in board model RS-1 with various input and output connections labeled.

Other applications

Connecting a Siemens MAG8000 Modbus or 1-Wire.

Siemens MAG8000 Modbus wiring instructions

  • White wire (GND) → I/O3 RS-485 B

  • Brown wire (Data) → I/O4 RS-485 A

  • Black wire (GND) → GND

  • Red wire (Battery/Power supply 12-24V) → VIN

Hawk plug-in board model RS-1 with various input and output connections labeled.

1-Wire wiring instructions

  • Green wire (Voltage) → I/O5

  • White wire (Data) → I/O 8

  • Brown wire (GND) → GND

Hawk plug-in board model RS-1 with various input and output connections labeled.

Digital Matter Eagle

Connecting the supplied sensor to the gateway.

Supplied sensor wiring instructions

  • White wire (Vs+) → VOUT (right side of the module)

  • Brown wire (Vs-) → 4-20mA 1 (left side of the module)

Digital Matter Falcon

Connecting the BD or HUBA sensor to the gateway.

BD sensor wiring instructions

  • Green → A-IN1

  • Brown → GND

  • White → 3.3V

Energizer batteries installed in a Falcon device with visible connections and indicators.

HUBA sensor wiring instructions

  • Green → A-IN1

  • White → GND

  • Brown → 3.3V

Energizer batteries installed in a Falcon device with visible connections and indicators.

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