Features of this product: ★ Small size, engineers can carry it with them, support Micro Android interface power supply ★ HX711 chip can be built on-site for easy debugging ★ Send data regularly or when weight changes ★ Measurement signal range: 19mV ★ Temperature coefficient: ≤100ppm / ℃ ★ A / D conversion rate: 6.25 ～ 100Hz ★ Comprehensive protection function: with multiple protections such as anti-reverse connection, anti-overvoltage, instantaneous suppression, etc. ★ Operating temperature range: -40 ℃ ～ 70 ℃; Storage temperature range: -60 ℃ ～ 90 ℃   Function Description: ★ Analog-to-digital conversion, digital calibration, peeling, zero setting, anti-shake and other functions ★ Strong anti-interference ability, strong versatility, small temperature drift, high linearity ★ Non-volatile storage of characteristic parameters, parameters are still saved after power off; ★ Display: 4 digital tubes (decimal point can be set, automatic displacement) ★ Keyboard: 4 keys ★ Power supply: 5VDC, all copper high-resistant socket 3.5-1.3, power line power supply DC3.5mm ★ Size: 55 × 35 × 12 (length × width × depth mm) ★ A / D module acquisition speed: 0-100 times / second optional (default 30) ★ Number of sensors: 4 350Ω load cells