Carestream Certified Density Strip Carestream| Carestream Certified Density Strip Print Carestream| Carestream Certified Density Strip Carestream certified 17-step density strip is commonly used to monitor the densitometer’s accuracy from 0.2D to greater than 4.0D. Measures 10" L x 1.38" W (25.4cm x 3.5cm). 184-2137: Carestream Certified 17-Step Density Strip. Request for information