Home › Blog › Buying Guide › Avoid Costly Mistakes: Professional Tips for Purchasing a Pre-Owned / Surplus / Second-Hand / used DEA BETA SP CMM Coordinate Measuring Machine Here is a robust, experience-based due diligence checklist and guidance you can use when considering a used / surplus / second-hand DEA “Beta SP” (or similar gantry / bridge / CMM style) coordinate measuring machine (CMM)....