This Calculated Industries Model 4090 Sheet Metal/HVAC Pro Calc Calculator is a reliable tool for construction math. It is a handheld device that is powered by batteries and is ITIC tested. The calculator is made by Calculated Industries, a trusted brand in the industry.

The calculator is perfect for professionals in the business and industrial field who need to perform complex calculations. It is ideal for use in the office and is an essential piece of equipment for anyone who requires accuracy in their calculations. The Model 4090 is designed for use in the construction industry and is a must-have for anyone who wants to be accurate in their calculations.sings of used condition . Look picture for details.

This model has been used in many projects. Has POCKET REFERENCE GUIDE. INCLUDE.