This tire probe is a grounded thermocouple located at the tip of a sharp-pointed stainless steel probe. The 0.040 inch diameter by 0.1 inch long probe is bonded to the plastic handle. Penetration is automatically limited to 1/8 of an inch maximum by the 1/4 inch diameter stainless steel shoulder. Response times of about one second are easily obtained by this probe. All probe assemblies come fully assembled with a plastic handle, stress relief spring, 12 inches of retractable extension lead and a miniature male 2-prong connector.