Immersion probe Type K (2)$160.00 For Testo 445, 645. Call us for a quote Product Model: 0604 0493 Immersion probe Type K (2) quantity Add to cart SKU: 0604 04932 Category: Testo Sensors Parts & Accessories Tag: Testo Sensors Parts & Accessories Description Description For Testo 445, 645. Related products Self service replacement O2 sensor – 325-1 & 325-2 only0 out of 5 $131.00 Add to cart TC with tube and plug NiCr-Ni0 out of 5 $366.00 Add to cart Handle for plug in thermocouples0 out of 5 $132.00 Add to cart