The G140 Multi-Dosing Unit is an automated syringe capable of applying drops of up to four different liquids on a solid surface. As an accessory to the Kruss DSA10-MKII Drop Shape Analyzer, it can speed up surface-energy measurements. Up to 50 images can be captured per second to enable users to detect differences in various fast-wetting materials such as paper, fabric and non-woven materials. The images can be analyzed for contact angle during or after acquisition.