Check the listing for details. SPER SCIENTIFIC Light Meter No 840021. Condition: Used. Listed at 19.79 USD. SPER SCIENTIFIC Light Meter No 840021 This eBay listing is for a used Sper Scientific Light Meter No 840021 that comes as you see pictured in the listing and noted above. I installed a fresh 9v battery (NOT included) and it powers on and off just fine and the item does change when I move it in and out of light. Seller Location Reference - Box 96 BID IN CONFIDENCE – CHECK MY FEEDBACK! My goal is your satisfaction. I leave positive feedback right after the payment is received for all orders!! If you plan to leave anything less than positive feedback and 5 stars - please let me know so that I can work out any problems that you may have. I aim to please!! SHIPPING & HANDLING FOR US BIDDERS We ship ASAP upon payment as noted above within 1 business day 99% of the time!! We normally pack up your new treasures 2 - 3 times a day and ship using USPS and Fedex Ground so that you get your items in a timely fashion. As always - there is no charge for local pickup on any of my items!! SHIPPING AND HANDLING FOR INTERNATIONAL BIDDERS Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility. Please check with your country’s customs office to determine what these additional costs will be prior to bidding/buying.” THANK YOU AND HAVE A WONDERFUL DAY!! Powered by SixBit's eCommerce Solution