Extech SDL350-NIST with NIST Certificate

Air Velocity/Air Flow meter with telescoping probe designed to fit into HVAC ducts and other small openings Telescoping probe extends up to 7.05ft (215cm) maximum length with cable Adjustable data sampling rate Stores 99 readings manually and 20M readings via 2G SD card Type K/J Thermocouple input for high temperature measurements Large (9999 count) LCD displays Air Velocity or Air Flow and Temperature simultaneously Record/Recall MIN, MAX, Data Hold and Auto power off Built-in PC interface > Each Unit Includes NIST Certificate 6 x AA batteries SD card Telescoping probe with cable Hard carrying case