Based on this product's specifications, here are some alternatives and similar models
Paint Thickness Gauge Blue Technology DX-13-AL (model DX-13-AL) — Blue Technology handheld coating thickness meter
Summary description:
Blue Technology DX-13-AL is a handheld paint thickness gauge designed for measuring coating and paint thickness on metal substrates. The compact instrument provides non-destructive measurement of lacquer, paint and other coatings to support quality control, vehicle inspection and repair work. Suitable for workshop and field use where quick, accurate coating thickness checks are required.