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Auto-Ranging
Automatically selects correct measurement range. Easy for novices, faster for pros.
Auto Shut Off Feature
No longer worry about coming back to a dead multimeter after leaving it on.
10 MegOhm Input Impedance
Safe for electrical and automotive use. Prevents damage to the vehicle’s ECU.
Wrist Mounted Band
Frees up hands for testing.
ETL/CE Listed
For safety and quality.
Built-in Lead Holders
For easy cable management and storage.
Automotive Uses Include
Automotive circuits, breakers, wiring, vehicle battery & charging systems, electrical components, and more.
Household Uses Include
Outlets, fuses, wiring, general-purpose batteries, electronic hobbies, and more.
Does the 3300a have reverse polarity protection?
Yes, the 3300a has an automatic negative (-) polarity indication symbol.
Does the 3300a Auto-Ranging DMM have a low battery indicator?
Yes. The 3300a Auto-Ranging DMM will display a battery symbol on the LCD when low.
What does OL mean?
If the test current isn't detected, it means there is no continuity. The screen will display 1 or OL (open loop).
Can this tool measure AMPS?
No, it cannot. You would need the 3320 or 3340 DMM.
What kind of batteries does this use?
The 3300a uses two 1.5-volt (LR44) batteries.
This product can expose you to chemicals including DinP, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
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