“T” handle design. 5” stainless steel probe with plastic sheath. Switchable range: -58 - 302° F or –50 - 150° C On/off switch. A certificate is provided indicating traceability to the National Institute of Standards (NIST). Tested to one point (correction factor ± 2° ). Includes one LR44 button cell battery; replacement #3029-60. One year limited warranty.