Little Bird
Load Cell - 5kg, Straight Bar
This straight bar load cell (strain gauge) converts applied force or weight into a proportional electrical signal, with a maximum capacity of 5kg. It uses fo...
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This straight bar load cell (strain gauge) converts applied force or weight into a proportional electrical signal, with a maximum capacity of 5kg. It uses four strain gauges arranged in a Wheatstone bridge configuration for accurate, stable readings — ideal for building digital scales, weight monitoring systems, and force-sensing applications.
The aluminium-alloy bar construction keeps it lightweight and corrosion resistant. Pair it with an HX711 amplifier breakout board to easily interface with an Arduino or similar microcontroller.
Key Features
- Capacity – 5kg maximum load
- Type – Straight bar (single-point) load cell
- Material – Aluminium alloy
- Configuration – Four strain gauges in a Wheatstone bridge
- Wire Colour Code – Red = E+, Green = O+, Black = E−, White = O−
Ideal For
- DIY digital scales and weighing platforms
- Weight and load monitoring in automated systems
- Presence detection via surface strain measurement
- Arduino and microcontroller-based force sensing projects
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout board carries a small or fine-pitched component and brings its connections out to standard, breadboard- and header-friendly pins. Describing a part as a breakout means it can be wired into a project without soldering directly to the component's tiny contacts.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- Strain gauge
- A strain gauge is a sensor element whose electrical resistance changes when it is stretched or compressed. It is commonly used to measure force, weight, pressure or bending, and because its resistance change is small it usually needs precise differential measurement electronics such as a high-resolution ADC.
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Sensors & Input
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