Probe shell matl cres, astm a296, grade cf-8c, alloy type 347; probe shaft matl stainless steel, qq-s-764, type 303, cond a; heater resistance 95 to 140 ohms; heater operating voltage 115 vac; 6.794 in. Min lg, 6.844 in. Max lg; 2.561 in. Shaft lg; 4.233 in. Min probe lg; 4.283 in. Max probe lg; probe is conical in shape; 1.065 in. Max probe dia