Extech Clamp-on Datalogger Kit

The 1000A True RMS Power Datalogger Kit is a handheld 1000A clamp on device which can measure single or 3 phase power up to 600kW. The LCD screen can display up to two of
the following: kW + PF, kVA + PF, V + A, A+Hz, or V + Hz. This logger supports Data Holding, a 25 point memory viewable on display, full function large 4-digit LCD with 40seg. bargraph, Peak Hold, Min/Max and an Auto Power Off feature.

Included in Power Logger Kit 
>> RS-232 Connection Module 
>> Windows PC Software 
>> Cable 
>> Alligator Clips 
>> Test Leads 
>> 9 Volt Battery 
>> Carrying Case

NOTE: Large Quantity Discounts Are Available!

Power Logger Features

  • 1000A Clamp-On Device Measuring 1 or 3 Phase Power Up to 600kW
  • Large 4-Digit LCD Display
  • Built in Data Logger Holds Up To 4000 Readings
  • Connect Directly to a PC and Download to a File
  • Includes Software, Cable, Test Leads, Alligator Clips and Carrying Case

Power Logger Specifications

  Range Resolution Basic Accuracy
True Power 600KW 10W ±(2%rdg+5d)
Apparent Power 1000KVA 10VA ±(2%rdg+5d)
Peak Current 1000A 0.1A ±(6%rdg+10d)
Peak Voltage 600V 0.1V ±(6%rdg+10d)
AC Current (40-500Hz) 1000A 0.1A ±(1.5%rdg+5d)
DC Current 1000A 0.1A ±(1.5%rdg+5d)
AC Voltage (40-500Hz) 600V 100mV ±(0.5%rdg+5d)
DC Voltage 600V 100mV ±(0.5%rdg+5d)
Frequency 500Hz 0.1Hz ±(0.5%rdg+5d)
Resistance 10KΩ ±(1%rdg+5d)
Continuity Beeper when < 50Ω
Data Storage Capacity 4,000 Readings
Software Compatibility Windows 95/98/NT/2000/ME/XP
Dimensions 10.2" x 3.7" x 1.8" (260mm x 93mm x 45mm)
Weight 15.9oz (450g)

Description Part Number Qty 10+
Extech 1000A True RMS Clamp-on Power Datalogger Kit 382068 call
Optional Accessories
Extech 3-Prong AC Line Separator 480172 call
USB Serial Adapter CABLE-USB232 call
9 Volt Lithium Battery, 1200 mAH U9VL-FP call

Measuring the AC Current of Small Appliances

To measure AC amperage using a clamp on meter or probe, you need to wrap around only one of the "hot" wires. If you put both of the hot wires in the sensing element of your meter or probe, the value of each wire will negate that of the other resulting in a value of zero.

Most small appliances have both of the "hot" wires wrapped in a single cord, or at least attached to each other. In order to wrap around only one of these, you would normally need to cut and split the wire. To avoid this, we recommend purchasing the Extech AC Line Splitter (P/N: 480172) which you plug in between your appliance and the electrical outlet. The AC Line Splitter provides two open areas for your to clamp your meter or probe around, one of which boosts the sensitivy by 10 times. View the Specs.


1000Amp True RMS Clamp Power Data Logger Data Sheet
1000Amp True RMS Clamp Power Data Logger User Manual