Using the Klein TI250 is easy. First, charge it using the included micro-USB cable. Once charged, turn it on and start scanning for hot and cold spots on the objects you're checking. You can choose your preferred color palette to make the readings clearer. To find specific temperatures, use the crosshairs feature. If you want to set up temperature alarms, go through the meter's options. When it comes to capturing images, insert a microSD® Card (if you have one) and press the capture button. As for maintenance, keep the device clean by using a soft, dry cloth. Avoid exposing it to extreme temperatures or moisture. Store it in the carrying case when not in use to protect it from damage.