Scale Indicator

The digital display unit ("indicator head") that reads weight from a load cell and outputs it via serial, USB, or Ethernet to the ticketing software.

## What is a scale indicator?

A **scale indicator** is the brain of an industrial scale. It takes the raw analog signal from the load cells, applies calibration, displays the weight, and outputs it to downstream systems.

## Common indicators

- **Rice Lake 720i / 1280**
- **Cardinal 225 / 825**
- **Fairbanks FB3000 / FB1100**
- **Avery Weigh-Tronix E1310 / ZM510**
- **Mettler Toledo IND570 / IND780**

## Connectivity

- **Serial RS-232 / RS-485** (most common).
- **USB** (modern indicators).
- **Ethernet / TCP** (Rice Lake 1280, Mettler IND780).

## How WeighPay handles indicators

WeighPay supports 200+ indicator protocols out of the box. Plug-and-play onto Windows or Android scale workstations.

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