Specification :

Digital Multimeter 3801-50
High Performance, Superior Functionality, and Advanced Safety
* CAT IV 600V with built-in protective circuitry for all functions
* True RMS and Super High ± 0.025% accuracy ( when measuring DC voltage)
* Large 51000 maximum count display
* Optional PC application package for transferring important measurement data and basic remote control

Basic specifications
AC measurement True RMS value measurement system
Display
Data display Primary display and secondary display: 4 1D2 characters
Maximum count [ 51000] , [ 15000] 1000 mV/ V range, [ 99999] Hz function, [ 9999] C function
Bar graph Scale display, 21 dot bar display. + / - polarity indication

Measurement function/ basic accuracy
DC voltage 51.000mV to 1000.0V
Basic accuracy ± 0.025% rdg.± 5dgt.
AC voltage 51.000mV to 1000.0V
Basic accuracy ± 0.4% rdg.± 25dgt.
AC+ DC voltage 51.000mV to 1000.0V
Basic accuracy ± 0.4% rdg.± 30dgt.
DC current 510.00¼ A to 10.000A
Basic accuracy ± 0.15% rdg.± 25dgt
AC current 510.00¼ A to 10.000A
Basic accuracy ± 0.7% rdg.± 20dgt.
AC+ DC current 510.00¼ A to 10.000A
Basic accuracy ± 0.8% rdg.± 25dgt.
Resistance 510.00© to 510.00M© , 510.00nS
Basic accuracy ± 0.05% rdg.± 5dgt
Continuity Buzzer sounds for less than 1000 count in each range
Diode Measured current: 1.00mA, open terminal voltage: 4.8V
C ( capacitance) 9.999nF to 99.99mF
Basic accuracy ± 1.5% rdg.± 5dgt
Frequency 99.999Hz to 999.99kHz
Frequency counter 99.999Hz to 99.999MHz
Basic accuracy ± 0.02% rdg.± 3dgt. ( less than 20MHz)
Temperature ( k)  200.0 to 1372.0° C
Temperature ( J)  210.0 to 1200.0° C
Duty ratio 99, 99%
Pulse width 510.00ms to 1999.9ms
Pulse output 0.5 to 4800Hz, 2.8V