... ), resolution: 0. 1A, continuous working up to 20 days, about 4,200 sets of data storage; 1 to 60 minutes storage ... clear blue LCD display, with large storage space, can store 4,200 sets of data; it also has automatic storage interval ... a new one when the battery voltage drops to 4.6V to 4.8V. In this case, the measured values are still accurate ...