20KG Load Cell Weighing Sensor – Wired Strain Gauge Module
20KG Load Cell Weighing Sensor
A resistive strain gauge load cell rated for up to 20 kg of compression. This straight bar sensor outputs a differential voltage proportional to applied load, making it the go‑to choice for building digital weighing scales, test rigs, and force-triggered automation.
Key Specifications
| Specification | Value |
|---|---|
| Rated capacity | 20 kg |
| Output sensitivity | 1.0 ±0.15 mV/V |
| Input resistance | 1000 ±10 Ω |
| Output resistance | 1000 ±10 Ω |
| Recommended excitation | 5–10 V DC |
| Insulation resistance | ≥2000 MΩ |
What You Can Build With This
- Digital kitchen or postal scale with an HX711 ADC and Arduino
- 20 kg capacity industrial parts-counting scale
- Force-sensitive occupancy detection for shelving or inventory bins
- Real-time grip-strength measurement tool for physiotherapy studies
Compatibility
Pairs directly with the HX711 24-bit ADC module, which handles excitation and signal conditioning. Works with any 5 V logic microcontroller – Arduino Uno, Nano, Mega, ESP32, Raspberry Pi Pico, and STM32 boards. Single-point mounting suits surface plates up to 20 kg.
Wiring Notes
Red wire is excitation+ (E+), black is excitation- (E‑), white is signal+ (S+), and green is signal- (S‑). Use the HX711 breakout board’s E+/E‑/A+/A‑ channels; keep wires twisted and away from switching noise sources for stable readings.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We’ve spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with Arduino?
Yes, it works with any Arduino board when paired with an HX711 amplifier module. The amplified digital signal is read via a two‑wire interface (data and clock).
Do I need an amplifier to use this load cell?
Absolutely. The raw output is only a few millivolts, so an HX711 or similar instrumentation amplifier is required to boost the signal to a readable range for microcontrollers.
What is the maximum load before damage?
The sensor’s safe overload limit is 150% of rated capacity (30 kg). Exceeding this may permanently deform the metal spring element and ruin accuracy.
📦 Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items