Byko-test 8500 Coating Thickness Gauge
Byko-test 8500 Coating Thickness Gauge

The byko-test 8500 Coating Thickness Gauge has a modular design to accommodate a wide range of applications. Multiple sensor probes are available for maximun flexibility. Coating thickness can be measured on a wide variety of metal substrates: iron, steel, copper, aluminum, zinc, brass, and titanium.

Features of the byko-test 8500 Coating Thickness Gauge

  • Illuminated graphical display and keypad
  • Easy to use menu
  • One-hand operation
  • Flip display by 180 degrees
  • Multi-language support
  • Modular design with exchangeable probes
  • Automatic and user specific calibration
  • Wireless data transfer to PC (optional)
  • Durable, wear-resistant ruby probe tip
  • V-groove in probe for measuring cylindrical parts
  • Acoustic signal for measurment confirmation

Two models are available for different requirements:

Basic version

With all important functions needed to measure and evaluate the thickness of non-metal layers on metal substrates. Basic statistical functions, memory for up to 100 readings, optional wireless connection to a PC and data transfer to Excel.

Premium version

Enhanced memory functions, batch measurement with up to 13000 measurements in 200 batches, memory for up to 100 custom calibrations, software and wireless data transfer, average zero adjustment for rough substrates, single and continous measurement modes included.

Wireless Sensor

Wireless Sensor for areas difficult to access with internal and external sensors. The new wireless sensor for the byko-test 8500 is built for all applications requiring a small sensor without direct connection to the instrument.

byko-test 8500 wireless sensor has a long lasting rechargeable batteries, a broad reach of 12 m and is available as single or dual sensor.

Thickness Standards

For control and inspection purposes individual shims or sets of thickness standards are available.

Certified Calibration Shims

These plastic shims (PG-3740 / PG-3741) aid in the calibration of thickness gages on ferrous or non-ferrous metallic substrates. Plastic shims can be used to calibrate on the actual test substrate.

Standards byko-test 8500 Coating Thickness Gauge
ASTM B 499, D 1400, D 1186, D 7091
BS 3900 Part C5, 5411 (3,11)
DIN 50981, 50984
ISO 2178 ,2360, 2808,19840


Technical Specification for byko-test 8500 Coating Thickness Gauge
Resolution 0.1 µm 0 - 99.9 µm, 1 µm 100 - 999 µm
0.01 mm ≥ 1.00 mm
Accuracy ± (1 µm + 2%*) 0 - 2000
µm ± 3,5%* > 2000 µm (*) percent of measurement value
Measurement Range 0 - 2000 Μm (0 - 80 mils)
Minimum Area of Measurement Fe:20 x 20 mm (0.79 x 0.79 in)

NFe: 20 x 20 mm (0.79 x 0.79 in)

Minimum Curvature convex 5 mm (0.20 in); concave 30 mm (1.2 in)
Minimum Substrate Thickness Fe: 0.2 mm (0.008 in)

NFe: 0.05 mm (0.002 in)

Communication Wireless Connection 2.4 GHz, distance max. 10 m
Temperature Range Storage -10°C (14°F)to 60°C (140°F)
Usage 0°C (32°) to 50°C (122°F)
Power Supply 2 x Mignon-Batteries (AA) 1.5V Alkali
or rechargeable-Batteries (AA) 1.2V
Dimensions 124 mm x 67 mm x 33 mm (4.9 x 2.6 x 1.3 in)
Weight ca. 120g (instrument with batteries and probe)


For more information about Byko-test 8500 Coating Thickness Gauge, please call us at 1.877.884.8378 or Click the button below.