QJ84 Digital Milliohmmeter.  Range 20mΩ to 20 kΩ. 7 ranges nominal 0.05% accuracy
The QJ84 Milliohmmeter provides resistance measurement over seven selectable ranges:
from 20mΩ to 20kΩ.
A high sensitivity specification makes the QJ84 milliohmmeter highly suitable for the precision measurement of low resistance. 
Practical and easy to use, the instrument is ideal for laboratory and test environments. 
A four-terminal measurement feature eliminates errors which can occur due to the resistance
of the test leads.

Features:

• High sensitivity

• Wide measurement scope

• Four wire measurement

• Internal calibration

• Rapid reading time

• Small temperature coefficient

• Long term stability

Applications include:

• Cable joints

• Earth bonds

• Switches

• Motors

• Transformers

• Generators

The special circuitry of the QJ84 milliohmmeter achieves measurements in a fraction of the time possible when using more traditional bridge techniques. The instrument is fitted with safety features to give protection when measuring inductive devices such as transformers and electric motors.

Precision manufactured components give a high degree of accuracy. 
The QJ84 milliohmmeter measures directly in Ohms and resistance is displayed on a large LED screen to 4½ digit resolution The instrument comes complete with Kelvin type test leads.

Supplies

• Mains input socket

• 115V or 220V ±10% 50-60 Hz

Environment

• Working: 5 to 40°C : RH > 80% non-condensing

• Storage: -5 to 50°C : RH > 95% non- condensing

Dimensions

• 250mm x 110mm x 285mm

Weight

• 2.2kg

Input connections

• 4mm sockets for current and potential

Calibration

• Internal digital calibration

• Supplied with Certificate of Conformity