Two selectable differential input channels. On-chip active low noise 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 external crystal. On-chip power-on-reset. Simple digital control and serial interface: pin-driven controlsno 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 1.5mApower down less than 1uA. Operation supply voltage range: 2.6 ~ 5.5V Operating Temperature Range:-20 degree ~ +85 degree Connection: Red to E+ Black to E- Green to A+ White to A- Note: Be sure not to directly press on the white cover to prevent damage to the sensor. Colour: green + silver Material: plastic Package Contents: 1 * weight sensor 5KG 1 * HX711 precision AD module 5 * nylon guide posts 2 * acrylic discs 2 * M3x10 screws 1 * 4P cable (color random, don't accept the specified color) 1 * 3.5x1.35mm power cord 1 * display module Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.