> **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 # Solar Digital Calipers **Type:** Product page · **SKU:** ADA3720 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia) **Page:** https://core-electronics.com.au/solar-digital-calipers.html ([markdown](https://core-electronics.com.au/solar-digital-calipers.html.md)) Praise the sun! You will never have that awkward situation where your caliper battery dies just when you need to take a measurement. Sure, if you have the budget... ## Pricing - **Price:** $33.95 (inc GST) — $30.86 AUD, exc GST - **Quantity discounts:** 10+ $29.94 (exc GST) · 50+ $29.32 (exc GST) ## Availability & dispatch - Available with a lead time — expect dispatch between Sep 01 and Sep 07. ## Restrictions Restrictions apply to this equipment as it uses button/coin cell batteries: - The equipment is intended to be used in trades, professions or industries - The equipment is not intended for sale to the general public - The equipment is not intended to be used where children are present - You are aware that this equipment may not meet child safety testing requirements as it is not intended to be used by consumers or general public, but rather, is intended to be used in trades, professions or industries in conjunction with the limitations and restrictions listed above - You are aware that these restrictions are due to a change in [A](https://www.accc.gov.au/media-release/businesses-on-notice-as-mandatory-button-battery-laws-commence)[ustralian legislation in 2022](https://www.accc.gov.au/media-release/businesses-on-notice-as-mandatory-button-battery-laws-commence) for button/coin cell batteries ![Button Battery Warning](https://core-electronics.com.au/attachments/uploads/iec-button-battery.png) A declaration of use will need to be submitted during checkout. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=ADA3720:1` (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/ADA3720:1.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 ***The Mighty Sun!*** You will never have that awkward situation where your caliper battery dies just when you need to take a measurement. Sure, if you have the budget, Adafruit recommend other high-end "Mitutoyo" calipers. But these are very fine calipers as well. The jaws are plastic, so not good for hot metal measurements or when you need perfectly flat jaws. In particular, these caught Adafruit's eye since they are solar powered *and* have a battery backup. Perfect for sustainable measuring in the hot desert. Or just when you keep coin batteries stocked at all time. If you're in a lit area ([where the lux rating is over 200](https://en.wikipedia.org/wiki/Lux)), the solar panel will power the calipers. Alternatively, if you're in darker surroundings (like in your secret underground lair and the power just went out), the 3V battery will take over. One button converts the measurement from millimeters to inches, and they're perfect for measuring components. One thing to note is that **you will need to zero the calipers when turning them on**. It's no big deal - just close the jaws after turning on, and press the Zero button. Check out Adafruit's calipers tutorial here. While these aren't as fancy as the Mitutoyo Digital Calipers, many of the same instructions apply! You will need to supply your own battery, these run off of a CR2016 Battery, which we currently dont stock, but can be bought from most electronics outlet stores. **Note:** Color of calipers may vary! ## Technical Details **Specifications** - Range: 0~150mm / 6" - Accuracy: ±0.2mm / ±0.01" - Resolution: 0.1mm / 0.01" - Repeatability: 0.1mm / 0.01" - Maximum measuring speed: 1.5mm / sec, 60" / sec - Power: When light is over 200 lux, the solar panel will activate. When light is under 200 lux, the 3V battery will supply power. - Operating temperature: 0ºC ~ +40ºC - Storage temperature: -20ºC ~ +70ºC ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/3/7/3720-05.jpg)