CALL; A.WIHARTA WIHARTA 081294124885 085778084789 087784022201   Info Produk This meter measures air flow and temperature by placing the sensor into an airway such as a duct or a vent. The sensor is situated at the end of the telescoping wand for convenience and has a protective cover that slides up and down. The meter includes an RS-232 PC Interface jack for use with the Model 407001 Data Acquisition software and interface cable kit. Careful use of this meter will provide years of reliable service. Features: Telescoping probe is ideal for measuring in HVAC ducts and other small vents; extends up to 4ft ( 1.22m) long Super large 1.4 " ( 36mm) dual LCD display Min/ Max, Data Hold