> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt # Extra-long force-sensitive resistor (FSR) - Interlink 408 **Type:** Product page · **SKU:** ADA1071 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia) **Page:** https://core-electronics.com.au/extra-long-force-sensitive-resistor-fsr-interlink-408.html ([markdown](https://core-electronics.com.au/extra-long-force-sensitive-resistor-fsr-interlink-408.html.md)) FSRs are sensors that allow you to detect physical pressure, squeezing and weight. They are simple to use and low cost. This sensor is a Interlink model 408 FSR... ## Pricing - **Price:** $41.10 (inc GST) — $37.36 AUD, exc GST - **Quantity discounts:** 10+ $36.25 (exc GST) · 50+ $35.49 (exc GST) ## Availability & dispatch - Out of stock — the product page offers email notification when it returns. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=ADA1071:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart. - **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/ADA1071:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.) - **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there. - **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works) - **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt ## Description FSRs are sensors that allow you to detect physical pressure, squeezing and weight. They are simple to use and low cost. This sensor is a Interlink model 408 FSR with a massive 1/4-inch x 24-inch sensing region. You can press anywhere along the strip and the pressure will be recognized. Note that this sensor can't detect *where* on the strip you pressed (for that, [check out Adafruit's ribbon soft pots](https://core-electronics.com.au/#)). FSRs are basically a resistor that changes its resistive value (in ohms O) depending on how much its pressed. These sensors are fairly low cost, and easy to use but they're rarely accurate. They also vary some from sensor to sensor perhaps 10%. So basically when you use FSRs you should only expect to get ranges of response. While FSRs can detect weight, they're a bad choice for detecting exactly how many pounds of weight are on them. FSRs are made of plastic and the connection tab is crimped on delicate material. The best way to connect to these is to simply plug them into a breadboard or use a clamp-style connector like alligator clips, female header, or a terminal block. It is possible to solder onto the tabs but you must be very fast because if your iron is not good quality or you dally even a few seconds, you will melt the plastic and ruin the FSR! **Don't attempt to solder directly to your FSR unless you are absolutely sure you have the skills to do so.** For a full tutorial with wiring diagrams, code examples and project ideas, please read the FSR tutorial page! ## Technical Details Dimensions: - Length: 24in/609.6mm - Width: 15.33mm/0.6in - Thickness: 0.57mm/0.023in - Weight: 5.03g/0.177oz [The FSR datasheet contains force/resistance graphs, diagrams, etc!](https://core-electronics.com.au/attachments/localcontent/FSR400Series_PD_280626052f6.pdf) ![](https://core-electronics.com.au/attachments/localcontent/rohs_icon_8216055e11.jpg) ## Guides for this product - [How to use Force Sensitive Resistors with a Raspberry Pi and a ADS1015 ADC](https://core-electronics.com.au/guides/raspberry-pi/force-sensitive-pads-raspberry-pi/) ## Videos for this product - [How to use Force Sensitive Resistors with a Raspberry Pi and a ADS1015 ADC](https://core-electronics.com.au/videos/how-to-use-force-sensitive-resistors-with-a-raspberry-pi-and-a-ads1015-adc) ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/1/0/1071-03.jpg)