CASIO SPF-10 Sea Pathfinder Digital Watch This is a CASIO Sea Pathfinder wristwatch. It is equipped with an infrared temperature sensor (thermoscanner), allowing for non-contact measurement of water temperature and surface temperature. This watch is specifically designed for fishing and features not only moon phase and tide information, but also pre-set data for 10 fishing locations in Japan. For detailed instructions, please enter the model number (2031) in the CASIO HP instruction manual search. The temperature sensor, time display, EL backlight, and other functions are working without any problems. *Please refrain from purchasing if you are looking for a perfect item. 【Model Number】 SPF-10 【Specifications】 EL Backlight *Auto mode available (backlight turns on when tilted) 100m water resistance Alarm function Infrared temperature sensor, etc. Used item / Stored at home *Please refrain from purchasing if you are sensitive to used items. Will be shipped in simple packaging. 【This is a Grade A item】 S: New, unused (almost new) A: Minor scratches, dirt, and damage are not noticeable B: Some dirt, stains, minor scratches, and damage C: Used condition, with some dirt and damage D: Used condition, with noticeable dirt and damage E: Junk item with noticeable dirt and damage Thank you.