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Weight Sensor - 5KG Load Cell

SKU: J8OM94R29J
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4.7 (126 reviews)
The Weight Sensor – 5KG Load Cell is a strain-gauge-based force and weight measurement sensor designed to measure loads up to 5 kilograms. It converts mechanical deformation caused by an applied weight or force into a small differential electrical signal that can be amplified and processed by a microcontroller or digital weighing system. The sensor contains precision strain gauges arranged...
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The Weight Sensor – 5KG Load Cell is a strain-gauge-based force and weight measurement sensor designed to measure loads up to 5 kilograms. It converts mechanical deformation caused by an applied weight or force into a small differential electrical signal that can be amplified and processed by a microcontroller or digital weighing system.

The sensor contains precision strain gauges arranged as a Wheatstone bridge and bonded to an aluminium alloy structure. When a load is applied in the correct direction, the metal body deforms slightly, causing a change in the resistance of the strain gauges. This produces a small differential output voltage proportional to the applied load. Typical 5 kg bar-type load cells have rated outputs around 1.0 to 1.2 mV/V, though exact specifications vary by model.

Because the raw output signal is only a few millivolts at full load, the load cell is commonly used with an HX711 24-bit ADC and load cell amplifier module. This combination allows easy interfacing with Arduino, ESP32, STM32, Raspberry Pi, RP2040, and other development platforms for digital weighing scales, kitchen scales, force measurement systems, inventory monitoring, and IoT-based weight monitoring projects.

Key Features

  • Maximum weighing capacity of 5kg
  • Strain-gauge-based weight sensing technology
  • Converts mechanical force into an electrical signal
  • Full Wheatstone bridge configuration on common 4-wire versions
  • High sensitivity and stable output
  • Low non-linearity
  • Good repeatability
  • Compact aluminium alloy construction
  • Lightweight and durable sensor body
  • Four-wire electrical connection
  • Suitable for compression and platform weighing applications
  • Easy interfacing with the HX711 load cell amplifier
  • Suitable for digital weighing scale projects
  • Low power consumption
  • Easy calibration using known reference weights
  • Compatible with popular microcontrollers and development boards

Shipping & Returns

Orders placed before 3 PM IST will be shipped on the same day (excluding Sundays and Public holidays) through our shipping partners. In rare cases, the pickup may get delayed during Public holidays / Bandh / Environmental disturbances.

Specifications

Specifications:

Sensor Type: Strain Gauge Load Cell
Measurement Type: Weight / Force
Maximum Capacity: 5kg
Equivalent Capacity: Approximately 11lb
Sensor Construction: Strain Gauge Wheatstone Bridge
Output Type: Differential Analog Signal
Rated Output: Typically 1.0 to 1.2mV/V, Model Dependent
Recommended Excitation Voltage: Typically 5V DC
Maximum Excitation Voltage: Typically 10V DC, Model Dependent
Typical Non-Linearity: Approximately 0.05% Full Scale
Typical Hysteresis: Approximately 0.05% Full Scale or Better, Model Dependent
Typical Repeatability: Approximately 0.05% Full Scale
Safe Overload: Approximately 120% of Rated Capacity
Ultimate Overload: Up to Approximately 150% on Some Models
Input Impedance: Approximately 1000Ω to 1130Ω, Model Dependent
Output Impedance: Approximately 1000Ω
Insulation Resistance: Typically ≥2000MΩ
Operating Temperature: Approximately -20°C to +55°C or +65°C, Model Dependent
Body Material: Aluminium Alloy
Number of Wires: 4
Mounting Hole Size: M4 or M5, Depending on Sensor Model
Typical Dimensions: Approximately 55mm to 80mm Length, Depending on Model
Recommended Signal Interface: HX711 Load Cell ADC / Amplifier
Compatibility: Arduino UNO, Nano, Mega, ESP32, STM32, Raspberry Pi, RP2040, PIC, AVR and other controllers through a suitable load cell amplifier.

Additional Resources

Load Cell.PDF

FAQ

1. What is the 5KG Load Cell Weight Sensor used for?

The sensor is used to measure weight or applied force up to 5kg. It is commonly used in digital weighing scales, kitchen scales, small platform scales, robotics, automatic filling systems, and IoT weight-monitoring projects.

2. Can the 5KG Load Cell be connected directly to an Arduino?

The load cell produces a very small differential analog signal, so it is normally connected to an HX711 load cell amplifier and ADC module before interfacing with an Arduino or other microcontroller.

3. How does a 5KG Load Cell measure weight?

The load cell contains strain gauges attached to its metal body. When weight is applied, the body deforms slightly, changing the resistance of the strain gauges and producing an electrical signal proportional to the applied load.

4. Is the 5KG Load Cell compatible with ESP32 and STM32?

Yes. When used with a suitable amplifier and ADC module such as the HX711, the sensor can be interfaced with ESP32, STM32, Arduino, Raspberry Pi, RP2040, PIC, AVR, and many other controllers.

5. Does the 5KG Load Cell require calibration?

Yes. Calibration is required to convert the raw sensor readings into accurate weight values. A known reference weight is typically placed on the weighing platform and used to calculate the calibration factor.