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Amprobe ACD-21SW 600V Swivel™ Clamp Meter with Temperature and VolTect™

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Amprobe ACD-21SW 600V Swivel™ Clamp Meter with Temperature and VolTect™
Amprobe ACD-21SW 600V Swivel™ Clamp Meter with Temperature and VolTect™
Amprobe ACD-21SW 600V Swivel™ Clamp Meter with Temperature and VolTect™
Amprobe ACD-21SW 600V Swivel™ Clamp Meter with Temperature and VolTect™

Amprobe’s new ACD-21SW Swivel™ Clamp Meter features a patented 180-degree rotating head clamp design allowing easy views of measurements in tight or inconvenient to reach places.

Simply rotate the body of the clamp meter to get an unobstructed view of the LCD display. Feature rich, measuring AC/DC currents, voltage, resistance and capacitance as well as CAT III 600V safety ratings make this clamp on meter something you should swivel to see.

Amprobe ACD-21SW 600V Swivel™ Clamp Meter with Temperature and VolTect™ is rated 4.9 out of 5 by 10.
Rated 5 out of 5 by from This clamp meter is a great meter This is by far the best clamp meter I have ever used. The swivel head is the best thing amprobe has done on the clp meters. The swivel head makes it so you can get the clamp meter into tight spots and still read it.
Date published: 2018-09-11
Rated 5 out of 5 by from Quality meter with a large variety of functions. I bought this to replace an older meter with less functions that I had. After a little bit over a year of use I'm stil satisfied with it's quality and functions. It has held up well and has even survived a couple short drops. Only thing I could recommend on it would be a magnet to be able to hang on units and duct work. Other than that, I'd recommend it to anyone.
Date published: 2018-07-16
Rated 5 out of 5 by from Great meter Bought this meter to replace a couple Amprobe RS-3 clamp-on units that I've had for years, had become inaccurate and Amprobe has stopped repairing the RS-3. Functions of the ACD-21SW are significantly superior to the RS-3. I was able to purchase this NIB unit online at a deep discount and after using and testing all functions of the meter, I'm very impressed. The soft case that comes with the meter could be larger and have 2 internal pockets versus only 1 that is somewhat small. These changes would permit retrieving the 3 supplied leads without needing to remove everything from the case to find the one that is needed.
Date published: 2017-03-20
Rated 5 out of 5 by from Great little meter! I bought this meter specifically for swivel head. I have another good brand ammeter but this is the one I always use.
Date published: 2015-05-27
Rated 5 out of 5 by from nice clamp versatile and easy to use. this is a great product and well designed. the only thing that this product could use is a magnetic back for sticking to metal boxes while using to give you two free hands.
Date published: 2015-04-01
Rated 4 out of 5 by from Almost Perfect I love erverything about this meter except one thing.. I wish it read MICROAMPS for flame sensor tests. other than that, it cant be beat
Date published: 2012-03-29
Rated 5 out of 5 by from like the temp. ability feature Have owned this meter for about a year. great swivel head in tight places. temperature and voltage detection are a plus. even checked pool temp. to see if electric heaters were working. this is one of amprobes must have meters for any electrician.
Date published: 2012-03-28
Rated 5 out of 5 by from This is a must have tool for electricians. This is a very versatile meter, easy to use, rugged, and the swivel head on the meter saves you fom swiveling your head . A+ tool everyone should own one.
Date published: 2012-03-27
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  • Audible continuity
  • Auto and manual ranging respectively for quick checks and precise measurements
  • Auto power off
  • Data hold
  • Accommodates conductors up to 1.18 (30mm) in diameter
  • Test leads, battery (installed), users manual, carrying case and type-K thermocouple are included with the product
TRMS - - - -
AC Current 40.00 A , 400.0 A +/- (2.0 % rdg + 10 dgts)
50 Hz → 60 Hz
AC Voltage 4.000 V, 40.00 V, 400.0 V, 600.0 V +/- (1.2% rdg + 8 dgts)
→ 400 V Hz
DC Voltage 400.0 mV, 4.000 V, 40.00 V, 400.0 V, 600.0 V +/- (0.5% rdg + 2 dgts)
Resistance 400.0 ?, 4.000 k?, 40.00 k?, 400.0 k?, 4.000 M?, 40.00 M? +/- (1.0% rdg + 4 dgts) at 400 ? → 400 k? ranges
Capacitance - 4.000 µF, 40.00 µF,
400.0 µF, 4,000 µF
- 4.000 µF, 40.00 µF,
400.0 µF, 4,000 µF
+/- (3.0 % rdg + 15 dgts)
on 40 µF → 400 µF ranges
Temperature - -30 °F → 400 °F -35 °C → 400 °C - -30 °F →400 °F, (-35 °C → 400 °C) +/- (1 % + 2 °F) -4 °F → 400 °F
+/- (1 % + 1 °C) 0 °C → 200 °C
Diode test - - - - -
VolTect™ non-contact voltage detection 70 V → 600 VAC (50 Hz → 60 Hz) -
Backlight - - - -
Accommodates conductors Up to 1.18" (30 mm) in diameter

Display: 3¾ digit liquid crystal display (LCD) with a maximum reading of 3999.
Polarity: Automatic, positive implied, negative polarity indication.
Overrange: (OL) or (-OL) is displayed.
Zero: Automatic
Low battery indication: The “ “ is displayed when the battery voltage drops below the operating level.
Auto power off: Approx. 10 minutes.
Measurement rate: 2 times per second, nominal.
Operating environment: 0°C to 50°C / 32°F to 122°F at <70% relativehumidity.
Storage temperature: 20°C to 60° / -4°F to 140°F, 0 to 80% R.H. with battery removed from meter.
Accuracy: Stated accuracy at 74°F ±8°F, <75% relative humidity.
Temperature coefficient: 0.1 × (specified accuracy) per °F, (32°F to 66°F, 82°F to 122°F).
Altitude: 6561.7 Feet (2000m).
Jaw opening capability: 30mm (1.18 in) conductor.
Power: 1.5 volt battery x2, R03/SIZE AAA.
DC Volt ranges: 400mV, 4V, 40V, 400V, 600V
AC Volt (50Hz - 500Hz) ranges: 4V, 40V, 400V, 600V
AC Current (50Hz - 60Hz) ranges: 40A , 400A
Resistance range: 400O, 4kO, 40kO, 400kO, 4MO, 40MO
Capacitance range: 4uF , 40uF , 400uF , 4mF
Temperature range: -30°F ~ 400°F, -35°C ~ 400°
Continuity range: 400O
Non-contact voltage indicator: Sense voltage 70V to 600VAC (50Hz ~ 60Hz) beeper chirps and big bright red LED comes on, works when meter dial is on any ranges.

For complete specs please download the product datasheet under the “Resources" tab.
Model NameDescriptionBuy it
  • 180 degree rotating head for the perfect display viewing
  • Advanced VoltTect non-contact voltage detection
  • Slim jaw design with one hand operation
  • Temperature measurement
Included Accessories:   Test leads, battery (installed), users manual, carrying case, type-K thermocouple

Test LeadsBuy it
DL248DAmprobe DL248D

OtherBuy it
ELS2AELS2A AC Current Clamp Accessory
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