Load Cell 1kg

1kg Straight Bar Load Cell
This sensor is a "Single Point" load cell. It features four internal strain gauges arranged in a Wheatstone Bridge circuit. When you place a weight on one end of the bar, the aluminum flexes microscopically. This stretching and compressing changes the resistance of the strain gauges, which the HX711 then translates into a weight reading.

 
Key Features & Build:
• 1kg Capacity: This is the "high-sensitivity" version of the load cell family. It is perfect for measuring small items like jewelry, letters, or food ingredients where precision is more important than heavy lifting.
• Aluminum Alloy Construction: The bar is stiff enough to support the weight but elastic enough to return to its exact original shape once the weight is removed, ensuring your scale stays calibrated.
• Internal Bridge Circuit: The sensor is pre-wired in a four-wire configuration, designed to cancel out temperature interference and provide a stable signal.

 
Technical Capabilities:
• Sensitivity: Usually rated at 1.0 ± 0.1 mV/V. This means if you provide a 5V excitation, the full 1kg weight will only produce a 5mV change—highlighting why a 24-bit amplifier like the HX711 is necessary.
• Standard 4-Wire Interface:
o Red: Excitation + (Power)
o Black: Excitation - (Ground)
o White: Signal -
o Green: Signal +
• Linearity: The sensor provides a very linear output, meaning the change in voltage from 100g to 200g is the same as from 800g to 900g, making calibration simple.

 
Best For:
The 1kg load cell is the gold standard for digital kitchen scales, postal scales, and precision lab equipment. It is also widely used in IoT weight monitoring (such as checking if a coffee container is getting empty).