Yes. The 3320 Auto-Ranging DMM will display a battery symbol on the LCD when low.
Yes. The 3320 comes with a 0.315A/250V - UL Listed Bussmann, GMA Type (Radio Shack GMA/270 series; #270-1046 ) fuse.
Yes. The 3320 Auto-Ranging DMM will shut off after being idle for 15 minutes.
You can access the batteries by removing two screws on the back of the 3320 DMM.
The 3320 Auto-Ranging DMM uses two 1.5V AA batteries.
The 3320 Auto-Ranging DMM will measure 10A (DC from 0 to 10 amperes). Unfused DC current (AMPS). * A waiting period of at least 15 minutes is necessary between every 15 seconds testing period.
Yes. The 3320 Auto-Ranging DMM has Automatic negative (-) polarity indication symbol.
This is a normal function of the Auto Ranging feature of the 3320 DMM. It is simply picking up signals from the environment around it. You can zero it out by touching the two test leads together. When conducting a test, the meter will automatically zero out before giving a reading.