Extech MA440 Specifications

MA440 Series 400A

Clamp Meters + NCV

Three models to choose from, with or without True
RMS and AC or AC/DC Current functions. Choose True
RMS model for accurate readings of non-sinusoidal
waveforms, model with DC Current function for
automotive applications, or model with Type K function
when applications require Temperture measurements.
The MA440 Series pocket-sized meters are fully loaded
with multimeter functions and built-in non-contact
voltage (NCV) detector to meet your application needs!

Common Features

• Pocket-sized meters with 1.2" (30mm) jaw size fit

conductors up to 500MCM

• Built-in Non-Contact Voltage (NCV) detector

• MultiMeter functions include Resistance,

Capacitance and Frequency

• Relative Mode for Capacitance

• Data Hold freezes reading on display

• Auto Power Off with disable and Low Battery indication

• Large backlit LCD display

• Complete with test leads, three AAA batteries, and

pouch; MA443 and MA445 also includes a general

purpose Type K Temperature probe*

* General purpose Type K probe included does not measure full range of meter capability.
Specifications on next page.

Features

• Model MA440 (9 Functions)

- AC Current

• Model MA443 (10 Functions)

- True RMS

- AC Current

- Type K Temperature

- Built-in bright flashlight

- Max/Min

• Model MA445 (11 Functions)

- True RMS

- AC/DC Current

- Type K Temperature

- DC Zero function

- Built-in bright flashlight

- Max/Min

Ordering

PRODUCT DATASHEETPRODUCT DATASHEET

MA440 N ......... 400A AC Clamp Meter

MA443

N ......... True RMS 400A AC Clamp Meter

MA445

N ........ True RMS 400A AC/DC Clamp Meter

N Indicates products that are available with optional calibration traceable to NIST. Order with -NIST after part number.

Specifications subject to change without notice. Copyright © 2016 FLIR Systems, Inc. All rights reserved including the right of reproduction in whole or in part in any form.
Rev.8/17/16

MA440 UPC Code: 793950374405
MA443 UPC Code: 793950374436
MA445 UPC Code: 793950374450

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Specifications MA440 (Max. Resolution) MA443 (Max. Resolution) MA445 (Max. Resolution)

AC Current 400.0A (1mA) 400.0A (1mA) True RMS 400.0A (10mA) True RMS

DC Current — — 400.0A (10mA)

Basic Current Accuracy AC: ±2.0% AC: ±1.8% AC: ±2.5%, DC: ±2.0%

DC Voltage 600V (0.1mV) 600V (0.1mV) True RMS 600V (0.1mV) True RMS

AC Voltage 600V (1mV) 600V (1mV) 600V (1mV)

Basic Voltrage Accuracy AC: ±1.2% DC: ±0.8% AC: ±1.2% DC: ±0.8% AC: ±1.2% DC: ±0.8%

Non-Contact Voltage (NCV) 100 to 600V 100 to 600V 100 to 600V

Resistance 40MΩ (0.1Ω) 40MΩ (0.1Ω) 40MΩ (0.1Ω)

Capacitance 100µF (0.01nF) 40mF (0.01nF) 40mF (0.01nF)

Frequency 1MHz (0.01Hz) 1MHz (0.01Hz) 1MHz (0.01Hz)

Temperature (Type K - meter range) — -40° to 1832°F/-40° to 1000°C (1°) -40° to 1832°F/-40° to 1000°C (1°)

Duty Cycle Ye s Yes Ye s

Diode/Continuity Yes Ye s Yes

Dimensions 9x3x1.6" (228x77x41mm) 9x3x1.6" (228x77x41mm) 9x3x1.6" (228x77x41mm)

Weight 9.3oz (265g) 9.3oz (265g) 9.3oz (265g)

Specifications subject to change without notice. Copyright © 2016 FLIR Systems, Inc. All rights reserved including the right of reproduction in whole or in part in any form.

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