Amprobe AU-92 Automotive Multimeter

Performs all standard electrical tests for on-car and bench troubleshooting.

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Part Number

AU-92

Manufactured

By Amprobe

Includes

FREE Ground Shipping on orders of $1,000 or more
FREE Lifetime Tech Support

Features

Measures:
DC/AC voltage, DC/AC current, resistance, diodes, capacitance, frequency and temperature
Tests engine RPM and dwell
Data hold button
Locate faulty wiring and components
Compact size
Protective holster with magnetic hanging strap
CAT III-600 Volts AC & DC rating

The Amprobe AU92 automotive multimeter is a full-featured multimeter that offers additional measurements specific to automotive servicing. Ideal for locating faulty wiring and components, the AU92 has all standard multimeter functions such as voltage, current, resistance and continuity. The meter includes a built-in thermometer to measure air, surface or immersion temperatures and also tests engine RPM and dwell. An Inductive Pickup tool allows for accurate RPM measurements for 2 and 4-stroke automotive engines.

The Amprobe AU92 automotive multimeters are rugged and lightweight making them ideal for use either in the shop or in the field. A magnetic hanging strap keeps the meter handy. Results are clearly shown on the 3-3/4-digit LCD. The meter also includes a data hold function, auto zero, low battery indication and auto power off. The Amprobe AU92 automotive multimeter has a CAT III-600 Volts AC & DC rating.

Amprobe AU92 automotive multimeters ship complete with:

Inductive pick-up probe
Carrying case
Test leads
Test lead extender tips
Alligator clips
Type-K temperature probe
Fuse

Amprobe AU-92 Automotive Multimeter Specifications

Function	Range	Accuracy
DC Volts
	400 mV, 4 V, 40 V, 400 V, 600 V	± (1.0% rdg + 2 dgts)
Resolution	0.1 mV
Input impedance	400 mV: greater than 100 mΩ; 4 V:10 MΩ; 40 V to 600 V: 9.1 MΩ
Overload protection	600 VDC or AC rms
AC Volts
	400 mV, 4 V, 40 V, 400 V, 600 V
	400 mV (50 to 100 Hz)	± (2.0% rdg + 5 dgts)
	4, 40, 400, 600 V (50 to 100 Hz)	± (2.0% rdg + 5 dgts)
Resolution	0.1 mV
Input impedance	400 mV: greater than 100 mΩ; 4 V:10 MΩ; 40 V to 600 V: 9.1 MΩ
Overload protection	600 VDC or AC rms
DC Current
	400 µA, 4000 µA, 40 mA, 400 mA, 10 A
	400 µA to 400 mA ranges	± (2.0% rdg + 2 dgts)
	10 A range	± (3.0% rdg + 3 dgts)
10 A input: 10 A for 60 sec. max. followed by a 10 min. cooling period
Resolution	0.1 µA
Voltage burden	0.2 V on 400 uA, 40 mA ranges
	2V on 4000 uA, 400 mA ranges
Input protection	0.5 A/500 V fast blow ceramic fuse (FP520)
	10 A/500 V fast blow ceramic fuse (FP540)
AC Current
	400 µA, 4000 µA, 40 mA, 400 mA, 10 A
	400 µA to 400 mA ranges	± (2.5% rdg + 5 dgts)
	10 A range	± (3.5% rdg + 5 dgts)
10 A input: 10 A for 60 sec. max. followed by a 10 min. cooling period
Voltage burden:	see DC Current
Input protection:	see DC Current
Resistance
	400 Ω, 4 kΩ, 40 kΩ, 400 kΩ, 4 MΩ, 40 MΩ
Resolution	0.1 Ω on 400 Ω range
	400 Ω to 400 kΩ ranges	± (1.5% rdg + 4 dgts)
	4 MΩ range	± (2.5% rdg + 4 dgts)
	40 MΩ range	± (5.0% rdg + 5 dgts)
Open circuit volts:	-0.45 VDC (-1.2 VDC on 400 Ω range)
Overload protection:	600 VDC or AC RMS
Frequency (Hz) (Auto ranging)
	4 kHz, 40 kHz, 400 kHz
Resolution	1Hz	± (0.1% rdg + 3 dgts)
Sensitivity	10 Hz ~ 400 kHz: > 3.5 V RMS
Minimum pulse width:	>2.5 us
Duty cycle limits:	>30% and >70%
Overload protection:	600 VDC or AC RMS
Temperature
Ranges:	-20°C to 1000°C (-4°F to 1832°F)
Resolution	0.1°C, 0.1°F
	-20°C to 10°C	± (2.0% rdg + 4°C)
	10°C to 200°C	± (1.0% rdg + 3°C)
	-20°C to 10°C	± (2.0% rdg + 4°C)
	200°C to 1000°C	± (3.0% rdg + 2°C)
	-4°F to 50°F	± (2.0% rdg + 8°F)
	50°F to 400°F	± (1.0% rdg + 6°F)
	400°F to 1832°F	± (3.0% rdg + 4°F)
Sensor type:	K-type thermocouple
Overload protection:	600 VDC or AC RMS
RPM
Range: RPM	600 to 4000 RPM
X10 RPM	4000 to 12000 RPM
Resolution:	1 RPM	± (2% rdg + 4 dgts)
Effect Reading:	1 RPM	± (2% rdg + 4 dgts)
Overload protection:	600 VDC or AC RMS
% Duty Cycle
	1.0% to 90.0%
Resolution:	0.1%
Pulse width:	> 100 us, < 100 ms	± (2% rdg + 5 dgts)
Overload protection:	600 VDC or AC RMS
Dwell Angle
No. of cylinders: 4,5,6,8
	4 CYL	0 to 90.0°
	5 CYL	0 to 72.0°
	6 CYL	0 to 60.0°
	8 CYL	0 to 45.0°
Resolution:	0.1°	± (2% rdg + 5 dgts)
Overload protection:	600 VDC or AC RMS
Continuity
Audible indication:	Less than 25 Ω
Response time:	500 ms	0 to 90.0°
Overload protection:	600 VDC or AC RMS
Diode test
Test current:	1.0 mA (approximate)	± (3% rdg + 3 dgts)
Resolution:	10 mV
Audible indication:	< 0.25 V
Open circuit volts:	3.0 VDC typical	0 to 90.0°
Overload protection:	600 VDC or AC RMS