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The Ashcroft® C-600 B Duratemp® gas actuated thermometer is a direct-mount process instrument providing maximum durability while being highly resistant to shock and vibration.

Its high and low temperature range capability exceeds that of most bimetallic thermometers, making it ideal for use on many extreme applications. Usually used with a thermowell, the Duratemp is ideal for installations subject to vibration, hazardous process media, and extreme temperatures.

Ashcroft® C-600B Direct Mount Duratemp® Thermometer


±1.00% of span
4 ½"
Process Connection
½ NPT Male
Mounting & Connection
Direct Mount
Stem Length
6", 9", 12", 15", 18", 24", 30" or 36"
Stem Material
316L stainless steel
Case Material
Stainless Steel
Glass, Safety Glass or Acrylic
Case/Ring Style
Bayonet Ring
Bulb Size
3" Long x ⅜" O.D.


  • Exclusive movementless design; eliminates wear and prolongs product life
  • Large 4.5" Maxivision® dial for easy readability and elimination of parallax
  • Display can be rotated 360-degrees for easy readability
  • Wide selection of temperature ranges and stem lengths
  • ±1% Accuracy to ASME B40.3