1. Probe type: K type - TB601-1/ TB601-5: needle type liquid probe - TB601-2: air probe - TB601-3/TB601-4: surface temperature probe 2. Temperature measurement range: -50 - 500 degrees Celsius 3. Temperature measurement accuracy: about 2 degrees Celsius / about 0.75% 4. Features: - TB601-1/ TB601-5: for liquid and solidified colloid temperature measurement tip to the grip with metal coating protection - TB601-2/TB601-3/TB601-4: the surface and external temperature of frozen equipment or products are effective 5. Probe size: TB601-1: 3x160mm; TB601-3: 16x90mm; TB601-4: 16x150mm; TB601-5: 3x190mm 6. Wire length: about 150cm 7. Description: need to be used with a thermometer (shipping is not included)