The ACT CHROME 12V SLA Battery Tester uses advanced pulsed load technology to deliver accurate DC Voltage and Ah capacity results based on the battery’s temperature and state of charge. A quick look up table on the side of the unit identifies when batteries should be recharged or replaced due to age or operating conditions (65% of rated capacity). A temperature sensitive strip allows the ambient temperature to also be recorded. The ACT CHROME 12V SLA Battery Tester offers a simple and accurate solution for testing 12V SLA batteries commonly used in fire, security and many other electrical systems.