Comparison : Item # QSS-41-3, H 62.51 Stainless Steel Sensor
Item # QSS-41-4, H 66.51 SS Sensor, Glass Coated
Item # QSS-41-5, H 66.53 Sensor, SafeCoat coated
Item # QSS-41-6, PT 100.51 Sensor, Glass Coated
Item # QSS-41-7, PT 100.53 Sensor, SafeCoat coated