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Be ready for anything.
The Fluke 381 does everything you would expect from a clamp meter, and then lets you remove the display for even more flexibility. Now one technician can do jobs that used to require two people. Clamp the Fluke 381 around a conductor, remove the display and walk across the room to operate controls or remove protective equipment, all while watching real-time readings.
The iFlex flexible current probe (included) expands the measurement range to 2500 A ac while providing increased display flexibility, ability to measure awkward sized conductors and improved wire access.
Safety Conformance
IEC/EN 61010-1:2001, 1000V CAT III, 600V CAT IV

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Fluke 381 Remote Display True-rms AC/DC Clamp Meter with iFlex™
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5
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This product is a very important to you saftey.
This meter with the removal display face makes my job more safe. I use this meter alot to take amp reading in switch gear. I can set the meter up have the display in my hand and close the motor bucket and return power. Whlie getting my reading outside the gear with it closed.
October 25, 2012
Great general meter
This is a great all purpose meter, it has both AC and DC current plus the iFles makes it easy to measure large amperage multi-conductor switchgear. It comes with test least but it really needs the TL175 and TLK-225 to make it fully functional. This will handle most uses except inverter drive requiring a scope. I've used it for main industrial power, low voltage distribution (LED lighting), automotive, electrical troubleshooting and alarm install. It replaced 2 other meters and with the detachable display, one assistant.
July 4, 2012
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Features and benefits
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- Wireless technology allows the display to be carried up to 30 ft. away from the point of measurement for added flexibility without interference with measurement accuracy
- The removable magnetic display can be conveniently mounted where it is easily seen
- iFlex flexible current probe expands the measurement range to 2500 A ac
- CAT IV 600 V, CAT III 1000 V
- Integrated low pass filter and state of the art signal processing allows for use in noisy electrical environments while providing stable readings
- Proprietary inrush measurement technology to filter out noise and capture motor starting current exactly as the circuit protection sees it
- Ergonomic design fits in your hand and can be used while wearing protective equipment
- Radio transmitter automatically sets the correct measurement range so you do not need to change the switch positions while taking a measurement
- Three-year warranty
- Soft carrying case
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Safety conformance
IEC/EN 61010-1:2001, 1000V CAT III, 600V CAT IV

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What’s the difference between the clamp meter models?
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Fluke-365 |
Fluke-373 |
Fluke-374 |
Fluke-375 |
Fluke-376 |
Fluke-381 |
| Measure ac current |
200.0 A |
600.0 A |
600.0 A |
600.0 A |
999.9 A |
999.9 A |
| Measure ac current via iFlex |
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2500 A |
2500 A |
2500 A |
2500 A |
| Measure ac voltage |
600.0 V |
600.0 V |
600.0 V |
600.0 V |
1000.0 V |
1000.0 V |
| Measure continuity |
≤ 30 Ω |
≤ 30 Ω |
≤ 30 Ω |
≤ 30 Ω |
≤ 30 Ω |
≤ 30 Ω |
| Measure dc current |
200.0 A |
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600.0 A |
600.0 A |
999.9 A |
999.9 A |
| Measure dc voltage |
600.0 V |
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600.0 V |
600.0 V |
1000.0 V |
1000.0 V |
| Measure resistance |
6,000 Ω |
6,000 Ω |
6,000 Ω |
60k Ω |
60k Ω |
60k Ω |
| Measure frequency |
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500 Hz |
500 Hz |
500 Hz |
| Measure inrush |
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100 mS |
100 mS |
100 mS |
100 mS |
| Work in poorly lit areas |
Backlight |
Backlight |
Backlight |
Backlight |
Backlight |
Backlight |
| Measure non-linear loads |
True-rms |
True-rms |
True-rms |
True-rms |
True-rms |
True-rms |
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| Specifications |
| Diameter of measurable conductor |
1.3” or 34 mm max |
| Operating temperature |
-14 to 122ºF (-10 to 50ºC) |
| Storage Temperature |
-40 to 140ºF (-40 to 60ºC) |
| Operating Humidity |
< 90% @ 10 to 30 ºC, < 75% @ 30 to 40ºC |
| Operating Altitude |
0 to 2000 m |
| Size |
277 x 88 x 43 mm, (10.905 x 3.464 x 1.629 in.) |
| Weight |
350g, (12 oz.) |
| Temperature Coefficient |
0.01% ºC
(<18ºC or > 28ºC) |
| Warranty |
Three years for electronics
One year for cable and clamp assembly |
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| Model Name | Description | Price List | Buy it | | Fluke 381 |
Remote Display True-rms AC/DC Clamp Meter with iFlex™
Included accessories:
- 18-inch iFlex™ flexible current probe
- Coated instruction card
- Safety information sheet
- Soft carrying case
- TL75 test leads
- Five AA Alkaline batteries
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| CarePlans | Buy it | | G3P-Group2 |
- GOLD CarePlan.
- Models covered: 50 Series II (51 II, 52 II, 53 II, 54 II), 190 Series II (190-062/AM, 190-062/AM/S, 190-102/AM, 190-102/AM/S, 190-104/AM, 190-104/AM/S, 190-202/AM, 190-202/AM/S, 190-204/AM, 190-204/AM/S, 190-502/AM, 190-502/AM/S), 381, 705, 707, 709, 709H, 712, 714, 715, 717, 718, 719, 754, 787, 789, 810, 1550C, 1577, and 1587.
- Extends warranty from three to five years and includes five annual NIST traceable calibrations with data.
| |  | | S3P-Group2 |
- SILVER CarePlan.
- Models covered: 50 Series II (51 II, 52 II, 53 II, 54 II), 190 Series II (190-062/AM, 190-062/AM/S, 190-102/AM, 190-102/AM/S, 190-104/AM, 190-104/AM/S, 190-202/AM, 190-202/AM/S, 190-204/AM, 190-204/AM/S, 190-502/AM, 190-502/AM/S), 381, 705, 707, 709, 709H, 712, 714, 715, 717, 718, 719, 754, 787, 789, 810, 1550C, 1577, and 1587.
- Extends warranty from three to five years.
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| Clips | Buy it | | AC220 | AC220 SureGrip™ Alligator Clips |  |  | | AC87 | AC87 Heavy Duty Bus Bar Clip Set |  |  | | AC89 | AC89 Heavy Duty Insulation Piercing Test Clip |  |  |
| Test Probes | Buy it | | TP1 | TP1 Slim Reach Test Probes |  |  |
| Cases and Holsters | Buy it | | C550 | C550 Tool Bag |  |  |
| Lights | Buy it | | L206 | L206 Deluxe LED Hat Light |  |  | | LVD1 | LVD1 Volt Light |  |  |
| Test Leads | Buy it | | TL75 | TL75 Hard Point™ Test Lead Set |  |  |
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