# Need suggestions for accurate alternatives to FSR

#### Daedalus357

Joined Sep 4, 2017
1
I am creating a bottle weight measurement system. The bottle must be in a hanging state so that it is easy for the customer to replace, thus I cannot use a conventional scale for this application. I have tried using a Force Sensitive Resistor (FSR), however the readings will vary by nearly 100 points each time I remove and reconnect the bottle (even without liquid!).

I am looking for cheap, but accurate alternatives to a FSR. I have tried looking into Load Cells, however they are on the scale of over $100, even for smaller newton ratings. Specifically I need something similar to this: https://www.adafruit.com/product/166 edit: forgot to mention that I need to be able to ship to Japan... I'm not in the US or UK #### BR-549 Joined Sep 22, 2013 4,938 " The bottle must be in a hanging state so that it is easy for the customer to replace, thus I cannot use a conventional scale for this application. " What does that mean? What is the size and weight of bottle.......need much more details. Photos...schematics....etc. #### DickCappels Joined Aug 21, 2008 5,952 As previously pointed out on this forum the load cells used in small scales like the gram scale I have a gram scale for the kitchen that cost only$10 cannot be very expensive. Perhaps buying and taking apart bathroom and gram scales will lead you to the maker of inexpensive sensosrs like the one at the link below.

https://www.sparkfun.com/products/10245

#### Raymond Genovese

Joined Mar 5, 2016
1,658
I am creating a bottle weight measurement system. The bottle must be in a hanging state so that it is easy for the customer to replace, thus I cannot use a conventional scale for this application. I have tried using a Force Sensitive Resistor (FSR), however the readings will vary by nearly 100 points each time I remove and reconnect the bottle (even without liquid!).

I am looking for cheap, but accurate alternatives to a FSR. I have tried looking into Load Cells, however they are on the scale of over $100, even for smaller newton ratings. Specifically I need something similar to this: https://www.adafruit.com/product/166 edit: forgot to mention that I need to be able to ship to Japan... I'm not in the US or UK You have given us so little information, it is tough to know how to respond and I hope that you will come back and re-engage. For example, what is the weight and accuracy that you need? 1. View weight as present or absent (I know you probably don't want that) with a simple micro-switch 2. As mentioned, load cells can be had for much less than$100. Here is one with an HX-711 for \$13

3. Go analog with a Push/Pull guage

#### LesJones

Joined Jan 8, 2017
2,363