GM78, Hand Held Measuring Amplifier
- Easy to use
- Scalable display and decimal point
- Works on mains or battery power
- Auto power-off with timer
- High contrast OLED display
- Shows physical units and mV/V
- Tare function
- Integrated charger
- Selectable physical units
- Max value memory
- Control signal activation
- Supports 4- and 6-wire measurements
- Optional ±5V analog output
The GM 78 is a versatile, handheld strain gauge measuring device, featuring a freely scalable OLED display with a range of -3.5mV/V to +3.5mV/V for precise strain gauge signal measurement.
Its compact design is optimized for both battery (Li-Ion) and USB-C power supply operation, providing flexibility for various applications, including research and development, process control, automotive engineering, and environmental technology.
The device includes advanced features such as an energy-saving timer for automatic shutdown, maximum value memory, signal reversal, and support for 4- and 6-wire measurements. A 100% control signal input allows easy calibration of up to three sensors. The GM 78 is also available with optional analog output for expanded functionality.
| Input Type | Strain Gauge |
| Excitation | 4 V DC |
| Interface | USB |
| IP Rating | IP40 |
- Research and development
- Process measuring and control technology
- Automotive engineering
- Energy and environmental technology
- Mechanical engineering
GM78 Datasheet Datasheet |
- [Discontinued ]
- Portable Indicator
- Strain Gauge Input
- Range of Mathematic Functions
- Protection Class: IP40
- Accuracy: 0.2% F.S.
- Accumulator or Battery Power Supply
| Input Type | Strain Gauge |
| No. of Inputs | 1 |
| Excitation | 4 V DC |
| IP Rating | IP40 |
- Portable Indicator
- Strain Gauge Input
- Range of Mathematical Functions
- Data Logger up to 3000 Meas. Values
- Protection Class: IP40
- RS-232 or USB Interface
- 10 Parameter Sets
- Mains, Battery or Accumulator Power Supply
| Input Type | DC Voltage, DC Current, Strain Gauge |
| No. of Inputs | 1 |
| Excitation | 5 V DC, 12 V DC |
| Interface | RS-232, USB |
| IP Rating | IP40 |
- The 7280 has been discontinued and is replaced by the 7281 Portable Indicator
| Input Type | DC Voltage, DC Current, Strain Gauge |
| No. of Inputs | 1 |
| Excitation | 5 V DC, 12 V DC |
| Interface | RS-232, USB |
| IP Rating | IP40 |