The robust and accurate film - thickness gauge is an inexpensive and easy to use device for determining the thickness for different materials. The thickness gauge can be used for different standards by screwing in different measuring feet incl. weight. Due to the modular design, customer-specific requirements can also be implemented. Reproducible measuring results are achieved by the constant measuring force. Due to the consistent use of corrosion-resistant materials, the thickness gauges can be used in rooms with high humidity.