With metal shielding, strong anti-interference, MCU (STC15F104) mandatory positioning, can upgrade secondary development. Two ways can choose differential input. The chip's programmable gain amplifier, optional gain at 32, 64, and 128. The chip's voltage stabilization scheme can be directly connected to external sensors and the chips inside the A/D converter to provide power supply. Chip clock oscillator without any external devices; if needed, external crystals or clock can also be used. Automatic reset circuit. Simple digital control and serial interface communication; all control via input pins, chip registers without programming. Can select 10Hz or 80Hz output rate. 50Hz or 60Hz timing power supply interference suppression. Specifications: Typical operating current: Operating voltage range: 2.6 ~ 5.5 V Low operating temperature range: -20 ~ +85 degrees Celsius Module voltage: 4.8 V to 5.5 V Size: 29 * 17 * 4 mm Color: Red Material: Metal Package included: 1 x Load Cell AD Module 1 x Metal Shield 4 x Pin Header Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture to be slightly different from the real one. The allowed measurement error is +/- 1-3 cm.