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Amprobe’s AM-420 Residential Digital Multimeter delivers precision voltage measurements up to 250V in receptacles, switches, extension cords and light fixtures. The AM-420 is equipped with a continuity function for effortless troubleshooting of lightbulbs and fixtures. More still, the DC ranges of voltage are included to aid with automotive diagnostics of electrical systems and a battery test feature confirms the remaining amount of charge in the batteries.
Feature | 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 |
Resistance | 200.0 Ω 2.000 / 20.00 / 200.0 kΩ | +/-(1.5% rdg + 5 LSD) @ 200 Ω to 200 kΩ |
Continuity | • | |
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 |
Range | Manual-ranging |
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 | 2 |
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 |
Battery | One 9V alkaline battery (6LF22, 6LR61, MN1604) or equivalent |
Battery life | Alkaline: 100 hours typical |
Low battery indication | |
Overvoltage Category | CAT II 250V |
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 |
Certification | |
Dimensions (L x W x H) | 4.5 x 2.6 x 1.6 in (115 x 65 x 40 mm) |
Weight | Approximately 0.61 lb (275 g) with battery installed |
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