The preferred payment option is PayPal. You do not need to be a PayPal member, they also process single credit card transactions.
Simply click on the "PayPal add item to cart" button below the meter description. A new window will open and show your shopping cart. You can add more and different items by clicking on other buttons on my web site. You also can delete items from the cart or adjust the number. Then click on "proceed to checkout" button at the bottom of the cart, and follow the instructions provided by PayPal.

I'm also happy to accept traditional orders by mail, and payment by check and money order (from US and Canadian customers). Please fill out the mail order form below.

Mail order form in .pdf (Adobe Acrobat(R) reader needed)

Mail oder form in .doc (Micorsoft(R) Word needed)