How accurate can I measure items? If I use more than one cell does the accuracy improve or degrade?

This type of cell, which is 50kg half bridge will provide a typical accuracy of 50 to 100g with a maximum range of 200K for 4 cells. Adding more cells will increase the maximum load and decrease accuracy.

What is the output format from the hx711 ad weight module? is this an i2c output? if so what's the address?

The output is not IIC, it is SPI

Is there a way to get the 80 hz sample rate that the hx711 should provide (according to the datasheet) if the rate pin is set to high?

You need cut the PIN 14 of the chip to get 80 HZ

I just bought these for a project. What two opposing points get pressure applied to measure strain? I suspect it needs the rivets to be clear?

This gauge is used for scales, gauge must rest on it outer ring and the pressure must be applied on the center point.

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4pcs 50kg Load Cell Half Bridge Strain Gauge Human Body Scale Digital Weighting Sensor + 1pc HX711 AD Amplifier Weight Module for Arduino

4pcs 50kg Load Cell Half Bridge Strain Gauge Human Body Scale Digital Weighting Sensor + 1pc HX711 AD Amplifier Weight Module for Arduino

Product ID: 70091936

Details

Blade Material
Stainless
Brand
Geekstory
Color
Green & Silver
Material
Polycarbonate
Size
Small

🔗4 sensors combine for 200kg capacity

🔬24-bit high precision ADC HX711

⚖️50kg max load per sensor

$19.30

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡️ Elevate your scale game with precision that professionals trust!

ROBUST READY - Operates flawlessly from -20°C to +85°C, built for real-world conditions.
MODULAR LOAD MASTERY - Scale from 50kg to 200kg by combining up to 4 sensors seamlessly.
PRECISION MEETS POWER - Harness 24-bit ADC tech for ultra-accurate weight sensing.
PRO GRADE INTEGRATION - Ideal for custom electronic scales, backed by expert support and docs.
PLUG PLAY SIMPLICITY - No programming needed—digital control with easy serial interface.

This 4-piece 50kg half-bridge load cell set paired with a HX711 24-bit ADC amplifier module delivers high-precision weight measurement up to 200kg. Designed for easy integration with digital scales, it features selectable gain, dual input channels, and robust operation across wide temperatures. Perfect for engineers and makers seeking reliable, scalable load sensing with minimal setup.

Specifications

ASIN	B079FTXR7Y
Best Sellers Rank	#136,861 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #16 in Industrial Scale & Balance Parts
Blade Material Type	Stainless Steel
Brand Name	Geekstory
Color	Green & Silver
Customer Reviews	4.1 4.1 out of 5 stars (68)
Item Weight	80 Grams
Manufacturer	Geekstory
Manufacturer Part Number	1
Material Type	Polycarbonate
Model Number	FZ1802AX4+FZ0728
Number of Items	4
Operation Mode	Manual
Size	Small
UPC	702795764395

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