50kg Load Cell:
This load sensor, sometimes called a strain gauge, is the same one found in digital bathroom scales (you know, the ones you use in January for your New Year's resolutions, and then forget about a month later).
The sensor is a group of half-bridge strain gauge, there are 3 ways to use it :
1. Use one sensor with an external resistor to form a full-bridge measurement, the range of a sensor range: 50kg. External resistance on the higher requirements.
2.Use two sensors to form a full-bridge measurement, measuring range for the sum of the two sensors: 50kgx2 = 100kg
3.Use four sensors to form a full-bridge measurement, measuring range for the sum of four sensors: 50kgx4 = 200kg

HX711 Weighing Pressure Sensor 24-bit Precision A/D Module
Two selectable differential input channels
On-chip active low noise PGA with selectable gain of 32, 64 and 128
On-chip power supply regulator for load-cell and ADC analog power supply
On-chip oscillator requiring no external component with optional external crystal
On-chip power-on-reset
Simple digital control and serial interface: pin-driven controls, no programming needed
Selectable 10SPS or 80SPS output data rate;Simultaneous 50 and 60Hz supply rejection
Current consumption including on-chip analog power supply regulator: normal operation Operation supply voltage range: 2.6 ~ 5.5V
Operation temperature range: -40 ~ +85°

Package Includes:
8 X 50kg Human Scale Load Cell
2 X HX711 AD Module