The MDX-Series Digital Seawater Refractometer features IP65/67 ratings making it ideal for use in the field and in a multitude of environments. Delivering quick, digital accuracy with high-end performance features like: Automatic Temperature Compensation (ATC) and Continuous Loop Average Readings * Easy operation with large readable digital LCD display that shows all data needed on screen * Simply place 4-5 drops of your sample into the well, close the prism cover, and press the “READ” button * Prism cover and rubber grip add extra protection and are removable for easy cleaning * Chlorinity Range: 0 to 57 ppt * Dextran Range: 0 to 10.5% * IP Rating: IP67 (detecting unit), IP65 (body) SPECIFICATIONS: * Accuracy: ±2 ppt * Color: Black * Dimensions (L x W x H): 4.8 x 2.3 x 1.3 in (121.92 x 58.42 x 33.02 mm) * Includes: Hard shell case with protective lining, disposable pipette, (1) AAA Battery, and user manual * Measuring Type(s): Salinity * Quantity: 1 Each * Range: 0 to 100 ppt * Refractive Index Range: 1.3330 to 1.4200 nD * Resolution: 1 ppt * Specific Gravity Range: 1.000 to 1.075 * Style: Digital * Type: Seawater * Warranty: 1 Year * Wavelength: 589.3 mm LED