Battery Installation: H21 (HOBO® Weather Station)

If the logger is currently logging, you will need to stop logging and readout the data. Unscrew the two thumbscrews on the battery door cover and remove the battery door. Remove the old AA batteries. Insert the new AA batteries. Replace the battery door cover and thumbscrews. From the Logger menu in BoxCar Pro, select Launch. In the Logger Information section of the Launch screen, select the appropriate battery type (lithium or alkaline). Double-check the battery gauge to make sure you have not installed old or defective batteries. Replace the battery door cover and thumbscrews.