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This load cell sensor measures the force applied to a strain gauge mounted on an E-shaped alloy steel beam, and it's rated for 50kg when used as a single sensor. Because it uses a half-bridge structure, the sensor sends its signal through a specific wire, typically the red wire, as the beam stretches or flexes under load, and that signal changes proportionally with the applied force.
The listing notes it can be used in three configurations depending on the target capacity: a single sensor for a 50kg range, two sensors in parallel for 100kg, or four sensors in parallel for a 200kg range, which is exactly how many multi-point bathroom and platform scales are built, using several load cells positioned at the corners of a platform.
Output sensitivity is rated at 1 ± 0.1mV/V, with nonlinearity and repeatability both at 0.03% of full scale, figures that indicate a reasonably accurate and consistent sensor for its price class. Input resistance is 1000 ohms, and insulation resistance is rated at 5000 megohms, both relevant to how the sensor should be wired into a bridge amplifier circuit, typically using a chip like the HX711 to convert the small analog signal into a readable digital value.
The sensor is described as widely used in hopper scales, platform scales, platform balances and belt scales, reflecting its role as a basic building block for DIY and small commercial weighing equipment. It measures 34mm by 34mm by 8mm and weighs about 20g, with a 35cm cable.
Anyone building a DIY bathroom scale, a small platform scale, or a weight-sensing project for automation or inventory tracking will find this load cell a low-cost, well-documented starting point, particularly given its support for scaling up capacity by using multiple sensors together.
50kg for a single sensor, scalable to 100kg or 200kg using two or four sensors in parallel.
A half-bridge strain gauge load cell.
1000 ohms.
A bridge amplifier chip, such as the HX711, though this isn't included with the sensor itself.
Hopper scales, platform scales, platform balances and belt scales.
| Brand | Generic |
|---|---|
| Selling unit | PCS |
