Amprobe AM-420 Residential Digital Multimeter

Amprobe AM-420 Residential Digital Multimeter

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Model: Amprobe AM-420 Residential Digital Multimeter

Designed for in-home repair and electrical testing applications, the Amprobe AM-420 Residential Digital Multimeter accurately measures the voltage in receptacles, switches, extension cords, and light fixtures. Use the continuity function to easily troubleshoot light bulbs and fuses. This compact tool is designed for in-home repair and electrical testing applications, including measuring the presence of voltage in electrical sockets, extension cords, batteries, and other electrical circuits up to 250 V.

It is a must-have tool for residential projects including installation, troubleshooting, or repair of light fixtures, fans, or appliances. DC ranges of voltage and current are included to help with automotive diagnostics of electrical systems. The battery test feature checks the amount of charge remaining in standard 1.5 V and 9 V batteries.

Specifications: Amprobe AM-420 Residential Digital Multimeter

AM-420 Best Accuracy
AC Voltage
200.0 / 300 V +/-(1.5% rdg + 4 LSD)
@ 45 Hz to 400 Hz, 2 V to 200 V
DC Voltage
200 mV
2.000 / 20.00 / 200.0 / 250 V
+/-(1.2% rdg + 2 LSD)
@ 200 mV to 200 V
DC Current
200.0 µA
2.000 / 20.00 / 200.0 mA
+/-(1.2% rdg + 5 LSD)
@ 200 µA to 20 mA
200.0 Ω
2.000 / 20.00 / 200.0 kΩ
+/-(1.5% rdg + 5 LSD)
@ 200 Ω to 200 kΩ
Diode Test
Battery test
1.5 V, 9 V +/-(5.0% rdg + 1 LSD)
Data Hold
General Specifications
Maximum display
1999, updates 2 to 3/sec
Operating temperature
32°F to 104°F (0°C to +40°C)
Relative humidity
32°F to 86°F (0°C to +30°C) ≤75%; 86°F to 104°F (+30°C to +40°C) ≤50%
Pollution degree
Operating altitude
≤ 6561 ft (2000 m)
Storage temperature
14°F to 122°F (-10°C to +50°C)
Electromagnetic compatibility
In an RF filed of 1V/m = Specified accuracy ± 5%. RF field > 1V/m is not specified.
Over-range indication
” 1 “, “-1” or maximum display reading
One 9V alkaline battery (6LF22, 6LR61, MN1604) or equivalent
Battery life
Alkaline: 100 hours typical
Low battery indication
safety certifications
Overvoltage Category
Safety Compliance
IEC 61010-1, UL 61010-1 2nd Ed. and CAN/CSA C22.2 No. 61010-1-04 Update No.1:2008
EMC Compliance
Conforms to IEC 61326-1
safety certifications
Dimensions (L x W x H)
4.5 x 2.6 x 1.6 in (115 x 65 x 40 mm)
Approximately 0.61 lb (275 g) with battery installed

Key Features: Amprobe AM-420 Residential Digital Multimeter

Test leads installed
Measures AC/DC voltage
Measures DC current
Measures resistance
Audible continuity lithe
Rated to CAT II 250 V
Diode laboratory analysis