This surface thermocouple probe is designed for flat or convex surface temperature measurements. Exposed ribbon allows for direct contact with surface. REED R2920 Offers Features Measurement range: -58 to 932°F (-50 to 500°C) For general purpose temperature applications Fast response time of <2 sec. Compatible with Type-K temperature measuring instruments 6.3" (160mm) probe length 5" (125 mm) probe handle length 39" (100cm) wire length Included REED R2920 Type K Surface Probe