You can visit a nearby departmental store and check for the curling measuring device in the sports section. If you are unable to find the device, then you can ask any of the helpers in the departmental store to let you know where such devices are placed.
You can check for different brands and qualities, and make the decision as per your own preference. The device should only be capable of measuring correctly. The quality does not matter, as far as you use it carefully.
You can also visit a sport store and ask the storekeeper about curling measuring device. If the storekeeper does not have the device, then you can ask him to procure one for you, whenever he makes an order with his dealer.
You can also search for curling measuring device online, as there are a number of websites available where you can order it and it will be shipped directly to your home. For that purpose, you need to open your web browser and search for curling measuring device sellers online.
You can check different website and compare the brands and rates. Choose the one which you think is cheap and of good quality. Add the curling measuring device to your cart and proceed with the checkout options. You will have to give out your complete payment details, and the postal address, where you want to receive your ordered product.