This battery tester is designed for acid lead batteries, with an easy to read gauge that displays level of charge with floating discs. The temperature compensating feature ensures hot and cold temperature testing. Features and Benefits The charge gauge offers readings in both gravity and percentage The tester offers a reading in a range of 1.145 - 1.260sg The battery tester offers an easy to read level of charge with floating discs Typical Applications For use on lead acid batteries Warning Battery acid causes severe burns. Wear protective clothing and goggles when handling batteries. NB. Rinse tester with water after use