Specially designed to measure air or gases in heating and cooling units, ovens and engine exhausts. REED R2940 Offers Features Measurement range: -58 to 1652°F (-50 to 800°C) Perforated stainless steel shield permits fast response and element protection Fast response time of <2 sec. Compatible with Type-K temperature measuring instruments 6.1" (156mm) probe length 5.2" (131mm) probe handle length 39" (100cm) wire length Included REED R2940 Type K Air/Gas Probe