
ThermaGuard Heated Enclosure Liner
- T6 hazardous area rated
- 108W to 720W heat output
- 30-year heater cable life




IP65 Protection Standard
IP66 Protection Standard
Class 1 Division 2 Hazardous Area
Dissolved Oxygen Sensor Enclosures from Terrapin Industrial provide modular, IP65-rated protection for sensitive instrumentation in extreme cold, hazardous, and harsh industrial environments. Featuring patented expandable designs, high-efficiency insulation, and T6-rated heated liners, these systems reduce installation time and costs while ensuring reliable sensor performance.




What temperature range can the ThermaGuard Expandable Enclosure handle?
With the ThermaGuard Heated Liner, the enclosure maintains above 75°F indoors even in environments as cold as -60°F/-51.1°C.
Is the enclosure rated for hazardous area installations?
Can the enclosure be installed around an existing live instrument?
How many instruments can a single enclosure accommodate?
What is the lifespan of the ThermaGuard Heated Liner heater cable?
What materials are the enclosure and insulation made from?
Can the insulation be replaced without removing the instrument?
Talk to our experts for custom solutions and tailored guidance.

Protects field instrumentation and process control sensors in extreme cold and hazardous upstream and midstream environments.

Provides IP65-rated and T6-classified enclosure protection for dissolved oxygen sensors in chemical process environments.

Maintains reliable sensor performance in outdoor power generation facilities exposed to harsh weather and temperature extremes.

Supports winterization and freeze protection of instrumentation on petrochemical plant process lines in cold climates.
Talk to our experts for custom solutions and tailored guidance.



Terrapin's patented expandable design allows enclosures to be installed in stages or around live instruments, cutting total install time and cost by 30%.
The ThermaGuard Heated Liner features a patent-pending heater cable rated for 30 years, versus the 5-year typical failure rate of traditional finned and block heaters.
Maintains interior temperatures above 75°F in environments as cold as -60°F, with T6 hazardous area ratings for the most demanding industrial sites.
Submit your requirements and a Terrapin Industrial specialist will respond promptly with product recommendations and pricing.
For immediate assistance, feel free to give us a direct call at (281)-615-1429 You can also send us a quick email at
For immediate assistance, feel free to give us a direct call at (281)-615-1429 You can also send us a quick email at