{"id":45308,"date":"2026-06-17T09:46:20","date_gmt":"2026-06-17T09:46:20","guid":{"rendered":"https:\/\/proair.ee\/toode\/bb20-coating-thickness-gauge\/"},"modified":"2026-06-17T09:46:20","modified_gmt":"2026-06-17T09:46:20","slug":"bb20-coating-thickness-gauge","status":"publish","type":"product","link":"https:\/\/proair.ee\/en\/toode\/bb20-coating-thickness-gauge\/","title":{"rendered":"BB20 Coating Thickness Gauge"},"content":{"rendered":"<h2>BB20 Coating Thickness Gauge<\/h2>\n<p>The innovative BB20 with two sensors allows for the measurement of the thickness of non-magnetic coatings (e.g., paint, varnish, plastic coatings, galvanized coatings, enamel, or chrome plating) on both iron or steel and non-ferrous metals such as aluminum, magnesium, titanium, etc. <\/p>\n<p><img decoding=\"async\" src=\"https:\/\/de.trotec.com\/fileadmin\/public_external\/BB20_sensor-animation-130x130.gif\">The measuring tip features a spring and a practical V-groove. This simplifies measurement on round objects, such as shafts or hinges, and ensures that vibrations do not affect the measurements. <\/p>\n<p>This measuring device, which can be conveniently operated with just one hand, impresses with a wide measuring range of 0 to 1250 \u00b5m and ensures accurate results in every situation thanks to helpful statistical indicators and a practical alarm function when layer thicknesses exceed or fall below freely definable thresholds. <\/p>\n<p><strong>Its professional features make the BB20 an indispensable tool in the automotive industry\u2014for example, for measuring paint colors or detecting repainted accident damage\u2014 as well as for the universal inspection of fence and marine paints or other protective coatings.<\/strong><\/p>\n<p><strong>Best:<\/strong><\/p>\n<ul>\n<li>Automotive Industry: Color Control Measurements, Detection of Repaint Damage from Accidents<\/li>\n<li>Inspection of Railings, Ship Paint, and Other Protective Coatings<\/li>\n<\/ul>\n<p><strong>Advantages:<\/strong><\/p>\n<ul>\n<li>Dual sensor for measuring the thickness of non-magnetic layers on all magnetic and non-magnetic metals<\/li>\n<li>Wide measurement range: 0 to 1,250 \u00b5m<\/li>\n<li>Alarm function triggered when the layer thickness exceeds or falls below a freely definable threshold<\/li>\n<li>Various statistical functions, such as maximum, minimum, and average layer thickness<\/li>\n<li>Two-point calibration to ensure high accuracy<\/li>\n<li>Memory for up to 400 readings<\/li>\n<li>USB interface for transferring measurement data to a computer<\/li>\n<li>Easy one-handed operation<\/li>\n<li>Backlit screen<\/li>\n<li>automatic shut-off<\/li>\n<li>Optimal price-quality ratio<\/li>\n<\/ul>\n<h4><strong>Technical details of the coating thickness gauge:<\/strong><\/h4>\n<ul>\n<li><strong>Sensor: ferromagnetic substrates<\/strong><\/li>\n<li>Principle of operation: magnetic induction<\/li>\n<li>Guaranteed tolerance: (\u00b13% + 1) \u03bcm of the reading<\/li>\n<li>Minimum bending radius: (surface) 1.5 mm<\/li>\n<li>Smallest measuring surface: \u00d8 7 mm<\/li>\n<li>Thickness of the critical base layer: 0.5 \u03bcm<\/li>\n<li>Measurement range: 0 to 1250 \u03bcm<\/li>\n<li>Accuracy: 0.1 \u03bcm max<\/li>\n<\/ul>\n<h3>BB20 Coating Thickness Gauge<\/h3>\n<ul>\n<li>Sensor: colored metal base surfaces<\/li>\n<li>Operating principle: eddy current<\/li>\n<li>Guaranteed tolerance: (\u00b13% + 1.5) \u03bcm of the reading<\/li>\n<li>Minimum bend radius: (surface) 3 mm<\/li>\n<li>Smallest measuring surface: \u00d8 5 mm<\/li>\n<li>Thickness of the critical underlayer: 0.3 \u03bcm<\/li>\n<li>Measurement range: 0 to 1250 \u03bcm<\/li>\n<li>Accuracy: 0.1 \u03bcm max<\/li>\n<li>Features: maximum value, minimum value, average value, and standard deviation; alarm function; backlight; auto-off; memory for up to 400 measured values<\/li>\n<li>Dimensions (W x L x H) \/ Weight: 110 x 54 x 24 mm \/ 100 g (with battery)<\/li>\n<\/ul>\n<p><em>Package Contents: measuring device, calibration accessories, storage case, battery, user manual<\/em><\/p>\n<div id=\"c30\" class=\"csc-default ctype-text\">\n<p><strong>Technical Specifications of the Device<\/strong><\/p>\n<\/div>\n<table id=\"t061485584642bb\" class=\"tech\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr class=\"headerrow\">\n<th colspan=\"3\">Measuring the Thickness of a Coating Layer<\/th>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Principle of Operation<\/th>\n<td width=\"40%\">Magnetic induction, eddy currents<\/td>\n<\/tr>\n<tr class=\"even\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Material<\/th>\n<td width=\"40%\">Ferromagnetic substrates, non-ferrous metal substrates<\/td>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Measurement range, min. [\u03bcm]<\/th>\n<td width=\"40%\">0<\/td>\n<\/tr>\n<tr class=\"even\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Measurement range, max [\u03bcm]<\/th>\n<td width=\"40%\">1250<\/td>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Accuracy<\/th>\n<td width=\"40%\">\u00b1 0.1 \u00b5m<\/td>\n<\/tr>\n<tr class=\"even\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">The tolerance ensures gas permeability on ferromagnetic substrates within the measurement range of 0\u2013850 \u00b5m<\/th>\n<td width=\"40%\">(\u00b1 3% + 1.5) \u00b5m of the measured value<\/td>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">The tolerance ensures that the base surfaces of non-ferrous metals fall within the measurement range of 850\u20131250 \u00b5m<\/th>\n<td width=\"40%\">\u00b1 5% of the measured value<\/td>\n<\/tr>\n<tr class=\"even\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Tolerance within the measurement range of 0 to 850 \u00b5m<\/th>\n<td width=\"40%\">(\u00b1 3% + 1) \u00b5m of the measured value<\/td>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Tolerance within the measurement range of 850\u20131250 \u00b5m<\/th>\n<td width=\"40%\">\u00b1 5% of the measured value<\/td>\n<\/tr>\n<tr class=\"even\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Minimum measurement area for non-ferrous metal substrates<\/th>\n<td width=\"40%\">\u00d8 5 mm<\/td>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Minimum bending radius for non-ferrous metal substrates<\/th>\n<td width=\"40%\">3 mm<\/td>\n<\/tr>\n<tr class=\"even\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Critical primer layer thickness for non-ferrous metal substrates<\/th>\n<td width=\"40%\">0.3 \u00b5m<\/td>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Smallest measurement area on ferromagnetic surfaces<\/th>\n<td width=\"40%\">\u00d8 7 mm<\/td>\n<\/tr>\n<tr class=\"even\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Minimum bending radius of the measuring surface on ferromagnetic substrates<\/th>\n<td width=\"40%\">1.5 mm<\/td>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Critical thickness of the underlayer on ferromagnetic substrates<\/th>\n<td width=\"40%\">0.5 \u00b5m<\/td>\n<\/tr>\n<tr class=\"headerrow\">\n<th colspan=\"3\"><\/th>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Internal flash memory<\/th>\n<td width=\"40%\">up to 400 measured values<\/td>\n<\/tr>\n<tr class=\"even\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Retrieving the latest measurements<\/th>\n<td width=\"40%\"><\/td>\n<\/tr>\n<tr class=\"headerrow\">\n<th colspan=\"3\">Screen<\/th>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">LCD<\/th>\n<td width=\"40%\"><\/td>\n<\/tr>\n<tr class=\"even\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Solid color<\/th>\n<td width=\"40%\"><\/td>\n<\/tr>\n<tr class=\"headerrow\">\n<th colspan=\"3\">Device Control<\/th>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Buttons<\/th>\n<td width=\"40%\"><\/td>\n<\/tr>\n<tr class=\"headerrow\">\n<th colspan=\"3\">Environmental Conditions<\/th>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Operating \u2013 Min. Temperature [\u00b0C]<\/th>\n<td width=\"40%\">0<\/td>\n<\/tr>\n<tr class=\"even\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Operating \u2013 maximum temperature [\u00b0C]<\/th>\n<td width=\"40%\">40<\/td>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Operating \u2013 min. relative humidity [% RH]<\/th>\n<td width=\"40%\">20<\/td>\n<\/tr>\n<tr class=\"even\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Operating Conditions \u2013 Maximum Relative Humidity [% RH]<\/th>\n<td width=\"40%\">90<\/td>\n<\/tr>\n<tr class=\"headerrow\">\n<th colspan=\"3\">Dimension<\/th>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Length (without packaging) [mm]<\/th>\n<td width=\"40%\">110<\/td>\n<\/tr>\n<tr class=\"even\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Width (without packaging) [mm]<\/th>\n<td width=\"40%\">24<\/td>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Height (without packaging) [mm]<\/th>\n<td width=\"40%\">54<\/td>\n<\/tr>\n<tr class=\"headerrow\">\n<th colspan=\"3\">Weight<\/th>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">(without packaging) [kg]<\/th>\n<td width=\"40%\">0.114<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table id=\"t161485584642bb\" class=\"tech\" cellspacing=\"0\" cellpadding=\"0\">\n<thead>\n<tr class=\"titlerow\">\n<th class=\"color\" colspan=\"3\"><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr class=\"headerrow\">\n<th colspan=\"3\"><strong>PACKAGE CONTENTS<\/strong><\/th>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Measuring device<\/th>\n<td width=\"40%\"><\/td>\n<\/tr>\n<tr class=\"even\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Battery<\/th>\n<td width=\"40%\"><\/td>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Carry Bag<\/th>\n<td width=\"40%\"><\/td>\n<\/tr>\n<tr class=\"even\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">USB cable<\/th>\n<td width=\"40%\"><\/td>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Software<\/th>\n<td width=\"40%\"><\/td>\n<\/tr>\n<tr class=\"even\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Calibration Supplies<\/th>\n<td width=\"40%\"><\/td>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">User Manual<\/th>\n<td width=\"40%\"><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table id=\"t261485584642bb\" class=\"tech\" cellspacing=\"0\" cellpadding=\"0\">\n<thead>\n<tr class=\"titlerow\">\n<th class=\"color\" colspan=\"3\">MEASUREMENT RESULTS AND FUNCTIONS<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr class=\"headerrow\">\n<th colspan=\"3\">Internal sensors<\/th>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Layer thickness [\u00b5m]<\/th>\n<td width=\"40%\"><\/td>\n<\/tr>\n<tr class=\"headerrow\">\n<th colspan=\"3\">External Sensors<\/th>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Displaying the Minimum Value<\/th>\n<td width=\"40%\"><\/td>\n<\/tr>\n<tr class=\"even\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Displaying the Maximum Value<\/th>\n<td width=\"40%\"><\/td>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Displaying the Average Value<\/th>\n<td width=\"40%\"><\/td>\n<\/tr>\n<tr class=\"even\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Automatic Shutdown<\/th>\n<td width=\"40%\"><\/td>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Backlit screen<\/th>\n<td width=\"40%\"><\/td>\n<\/tr>\n<tr class=\"even\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Acoustic Alarm Function<\/th>\n<td width=\"40%\"><\/td>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Sensor for Ferromagnetic Substrates<\/th>\n<td width=\"40%\"><\/td>\n<\/tr>\n<tr class=\"even\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Sensor for Non-Ferrous Metal Surfaces<\/th>\n<td width=\"40%\"><\/td>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Two-point calibration<\/th>\n<td width=\"40%\"><\/td>\n<\/tr>\n<tr class=\"even\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Standard Deviation<\/th>\n<td width=\"40%\"><\/td>\n<\/tr>\n<tr class=\"odd\">\n<th width=\"30%\"><\/th>\n<th width=\"30%\">Battery Status Indicator<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<h3>BB20 Coating Thickness Gauge<\/h3>\n<p>The innovative BB20 with two sensors allows for the measurement of the thickness of non-magnetic coatings (e.g., paint, varnish, plastic coatings, galvanized coatings, enamel, or chrome plating) on both iron or steel and non-ferrous metals such as aluminum, magnesium, titanium, etc. <\/p>\n","protected":false},"featured_media":45309,"template":"","meta":{"_acf_changed":false,"_seopress_titles_title":"BB20 Coating Thickness Gauge","_seopress_titles_desc":"The BB20 coating thickness gauge with two sensors measures the thickness of non-magnetic coatings 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