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

Product ID: 70091936

Details

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

🔬24-bit high precision ADC HX711

⚖️50kg max load per sensor

🛠️4 half-bridge strain gauges included

₨270

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Description

⚡️ Elevate your DIY scale game with pro-grade precision!

PRO GRADE BUILD - Durable polycarbonate and stainless steel materials engineered for longevity.
PRECISION MEETS POWER - Each load cell supports up to 50kg for ultra-accurate weight sensing.
VERSATILE USAGE MODES - Three wiring configurations to tailor your project’s sensitivity and accuracy.
ARDUINO READY INNOVATION - Perfect for DIY smart scales and biometric projects—join the maker elite.
PLUG PLAY AMPLIFICATION - Integrated HX711 module ensures seamless, high-resolution data conversion.

This Geekstory kit includes 4 half-bridge load cells each rated for 50kg and a 24-bit HX711 amplifier module, delivering high-precision weight measurement ideal for Arduino-based digital scales and biometric projects. Built with durable materials and flexible wiring options, it’s the go-to solution for makers seeking reliable, professional-grade sensor performance.

Specifications

Asin	B079FTXR7Y
Best Sellers Rank	#111,854 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #14 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) 4.1 out of 5 stars
Item Weight	80 g
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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₨270

Duties & taxes included

In stock

Sold byAmazon SeychellesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Seychelles.

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TrustScore 4.5 | 7,300+ reviews

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