HX711 Weight Pressure Sensor

HX711 Weight and Pressure Sensor Amplifier Module

The HX711 is a dedicated 24-bit ADC amplifier for load cell and strain gauge measurements, designed to connect a Wheatstone bridge load cell to any microcontroller over a simple two-wire interface (DOUT, CLK). With an input range of +/-20mV and 24-bit resolution, it resolves sub-gram weight differences when paired with appropriate load cells. The module operates from 2.7V to 5.25V and the output rate is selectable between 10Hz and 80Hz via a RATE pin.

• 24-bit resolution — reads load cells with sub-gram precision
• 2-wire serial interface — DOUT and CLK, no SPI or I2C pins required
• +/-20mV input range — matches standard load cell output
• Gain 64 or 128 (channel A), gain 32 (channel B)
• 10Hz or 80Hz output rate
• 2.7V–5.25V supply

Which load cells are compatible with the HX711?

Any strain gauge load cell with a Wheatstone bridge output is compatible: single-point cells (used in kitchen scales), S-beam cells (for tension and compression), and bar cells (for platform scales). Connect the cell’s E+ (excitation positive), E- (excitation negative), S+ (signal positive), and S- (signal negative) wires to the corresponding HX711 module terminals.

Best for

Arduino kitchen scales, force measurement jigs, filament spool weight monitors, industrial hopper scales, plant pot soil weight logging, and any project measuring load or pressure with a Wheatstone bridge sensor.

Why Kunkune

Shipped from UK stock. 60-day returns, no minimum order. Fast Royal Mail delivery.

For a ready-to-build platform scale, the HX711 with 4×50kg load cells includes everything needed for a 200kg capacity scale.

Buying in bulk? For orders of 10+ units, contact us for trade pricing.