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Amprobe 33XR-A Manual Ranging Digital Multimeter

Manual ranging digital multimeter for AC voltage to 750V, DC voltage to 1000V,
AC & DC current to 10A, plus resistance, capacitance, temperature & more.


The Amprobe 33XR-A digital multimeter (DMM) features five AC voltage ranges to 750V, five DC voltage ranges to 1000V, five AC & DC current ranges to 10A, resistance ranges to 4 MΩ, diode test, frequency measurement to 40 MHz, temperature measurement to 1000°C (1832°F), and continuity test.


  • 1000 VDC / 750 VAC
  • 10 Amps AC/DC, fully safety fused
  • Resistance to 4 MΩ
  • Frequency to 40 MHz
  • Temperature to 1000°C (1832°F)
  • Capacitance to 4000 μF
  • Diode test
  • Continuity test with beeper
  • Input warning tone when test leads are in wrong jack
  • Min/Max, Relative, Peak and Data Hold
  • 41-segment bar graph
  • Separate door for easy battery and fuse access
  • Magne-Grip™ Holster with magnetic hanging strap
  • One-year warranty
  • Wide choice of Amprobe multimeter accessories



DC Voltage Ranges

400 mV, 4 V, 40 V, 400 V, 1000 V

DC Voltage Accuracy

± 0.7% rdg ± 1 digit

AC  Voltage Ranges

400 mV, 4 V, 40 V, 400 V, 750 V (45-500 Hz)

AC Voltage Accuracy

± 2.0% rdg ± 4 digits

Voltage Resolution

100 µV

Voltage Input Impedance

10 MΩ

Voltage Overload Protection

1000 V DC or 750 V AC RMS

DC Current Ranges

400 μA, 4 mA, 40 mA, 300 mA, 10 A

DC Current Accuracy

± 1.0% rdg ± 1 digit

AC Current Ranges

400 μA, 4 mA, 40 mA, 300 mA, 10 A

AC Current Accuracy

± 1.5% rdg ± 4 digits (45-500 Hz)

Current Resolution

0.1 µA

Current Overload Protection

Fast-blow ceramic fuse

Resistance Ranges

400 Ω, 40 kΩ, 40 MΩ

Resistance Resolution

100 mΩ

Continuity Test

Audible indication at < 35 Ω in 100 ms

Frequency Ranges

4 kHz, 40 kHz, 400 kHz, 4 MHz, 40 MHz

Capacitance Ranges

4 µF, 40 µF, 400 µF, 4000 µF

Diode Test

1.0 mA, 3.0 Vdc


3-3/4 digit (3999 count) LCD display

Measurement Rate

2.5 times per second

Operating Temperature

0°C to 45°C (32°F to 113°F) at < 70% RH

Storage Temperature

-20°C to 60°C, < 80% RH (with battery removed)

Power Supply

9V battery, NEDA 1604, JIS 006P, IEC 6F22

Battery Life

300 hours typical with alkaline


196 x 92 x 60 mm (7.7 x 3.5 x 2.4 in)


400 g (0.9 lb) with battery

Included Accessories

Test leads with threaded alligator clips (TL36A), 9V battery (installed), Magne-Grip™ Holster with magnetic hanging strap, temperature adapter (TA-1), Type-K thermocouple probe (TP255A), spare fuse, users manual

Optional Accessories


Padded Vinyl Carrying Case


Deluxe Test Lead Kit


Heavy Duty Case


High Voltage Probe


Temperature Adapter


High Temperature Probe






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