This surface probe comes with ribbon sensor and lumberg connector. Made of PVC. Narrowest temperature range but most accurate. Identified by a blue connector. Lumberg Connector: Uses a screw collar to attach to the thermometer. Most secure connection available. Designed for food processing environments. Applications: Measure grill temperature to assure correct cooking temperatures. Check frozen food to assure proper storage temperatures. Measure temperatures between package to ensure proper quality control. Check any surface for correct process control temperatures. Measure superheats on condensers. Measure griddle temperature. Measure machinery or mold temperature with a surface probe. Measure pipe temperatures in any industrial application. Temperature range: -58 to 500 degree F. Stem measures 1/8" diameter by 4" length and 39-25/64" lead length. Probe tip: 32. RoHS Compliant.