CURRENT METER Features:  Instant speed, air or water Maximum and average speed  Temperature Minimum and maximum temperatures  Windchill ( when used as windmeter)  Replaceable sensors  User selectable averaging period - from 3 seconds to 24 hours EL Backlight Waterproof Floats 2 AA Batteries  Aluminum base for tripod attachment Aluminum carrying case for all parts. Sientific portable flowmeter, air flow, water flow, temperature!  The FLOWATCH portable flowmeter is a versatile instrument designed for simple and accurate measurement of air and water flow. This competitively priced instrument ( flowmeter - thermometer) has been developed for use under challenging circumstances. Because of its different impellers, you can use it to measure amost any liquid or gaseous medium. The standard FLOWATCH kit comes complete with a display, 1.2 meter telescoping rod, carrying case and two flow sensors; one for water and one for air. a hanging water sensor with 15 meter cable ( Included.) Includes: Waterproof Display 60mm Water Impeller 25mm Air Impeller 1.2m Telescoping Carbon Rod w/ 2m cable Aluminum Carrying Case. Specifications: Weight ( Display Unit) : 8.3 oz ( 230 g) . Dimensions ( Display Unit) : 2.5 " × 2.5 " × 5.1 " ( 6.4 × 6.4 × 13 cm) . Dimensions ( Included Case) : 25 " × 13.5 " × 3.5 " ( 63.5 × 34 × 9 cm) . Flow Speed Units: km/ h, mph, knots, m/ s and cm/ s. Flow Speed Accuracy: + / - 5 % from - 10° to + 50° C. Flow Speed Range: 2 to 150km/ h. Temp Accuracy: + / - 1° . Temp Functions: Current, minimum, average, maximum temperature and windchill factor.