LE300 Ferrous Coating Thickness Gauge

The Original Ferrous Gauge Behind Today’s L600S

The LE300 was Kett’s original electromagnetic pocket coating thickness gauge for measuring non-magnetic coatings on magnetic substrates. It is no longer manufactured. The information below is provided for owners of existing units and for buyers identifying the current replacement.

What the LE300 Did

The LE300 used an electromagnetic probe to measure the thickness of paint, plating, lining, and other non-magnetic coatings on iron, steel, and other magnetic metals. Operators worked from one pocket-size unit with a single-contact probe that applied constant pressure for repeatable readings.

• Built for ferrous substrates: Electromagnetic measurement of non-magnetic coatings on steel and iron, covering plated, painted, and lined parts.
• Measurement range: Up to 1,500 µm, covering typical coating and plating work.
• Non-volatile calibration memory: Held its calibration through power-off and battery changes, so measurement could resume without recalibrating.
• Simple field operation: Single-contact constant-pressure probe and upper/lower limit alarms for fast, repeatable readings.

Why the L600S Replaces It

The LE300 was the original of the line, followed by the LE330, LE370, and LE373 series. The current production model for all of this work is the L600S. It keeps the ferrous measurement that defined the LE300 and adds a wider measurement range, 100 application memories, storage for 50,000 records, a 2.7 inch full color display, and USB-C output.

Looking for the current model? The L600S Coating Thickness Gauge replaces the LE300 and the entire L3xx coating gauge line.