Battery Test Equipment will soon be available through Storage Battery Systems https://www.sbsbattery.com. Refractometry equipment and price lists are shown below in the product flyer. Simply send an email to firstname.lastname@example.org and tell us what you want, and we will respond to your address with a Paypal invoice which is the only form of payment we can currently accept. If you don't have a Paypal account, registration is very easy, and almost all credit cards are accepted. Sorry for the inconvenience. On-line ecommerce is coming soon.