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 less than 1.5mA, power down less than 1μA Operation supply voltage range: 2.6V to 5.5V Operating temperature range: -20°C to +85°C Wiring method: excitation positive (E+) red, excitation negative (E-) black, signal positive (S+) green, signal negative (S-) white Color: Silver Material: Metal Package Contents: 4 x 1kg load cell weight sensor 4 x HX711 AD modules Only the above package content, other products are not included Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3cm