Resistance measurement max: 20 kΩ
Resistance measurement resolution: 100 µΩ
Measuring mode: 4-wire
Power supply: Battery
Portable: Yes
Dimensions: 100 x 52 x 160 mm
Weight: 700 g
Height: 160 mm
Length: 100 mm
Accuracy max: ±0.3% + 1 digit
Width: 52 mm

Set of test clamps and instruction manual included. The RS Pro Milliohm Meter ILOM-508A is a cost-effective instrument for measuring very low impedance using a four-wire design with a pair of coated clips. It offers a wide measurement range from 0.1 mΩ to 20 kΩ in six switchable steps.

Features include a D-H switch to bypass measurement values for the LCD display. The LCD display has 3 1/2 digits with a maximum value of 1999, including a decimal place and unit of measurement. Accuracy is ± (0.3% of the measured value + 1 digit). The open terminal voltage is 1.0 V max, and there is an overload indicator "OL".

Additional features include a zeroing knob, battery discharge indicator, and a reading speed of 2.5 times per second. Operating temperature and relative humidity range from 5 °C to 40 °C with 80% relative humidity or less. Storage temperature and relative humidity range from -10 °C to 60 °C with 70% relative humidity or less.

Power supply requirements are 1.5 V x 6 NEDA 15F IEC-R6 JIS SUM-3, with an AC input voltage of 100 V AC to 240 V AC at 0.3 A and an input frequency of 60 Hz or 50 Hz. The free voltage DC output is 9 V DC (8 to 11 V DC max.), and it has fuse protection of 2 A/25 V (5 mm x 20 mm), with a fast minimum cut-off of 1500 A operating current greater than 0.5 A.

Applications include resistance measurement for motor windings, transformers, circuit boards, conductors, photoelectricity, and welding spots.