Safety Technology International STI-7521-HTR

Heated Type 4X Polycarbonate Enclosure, Thumb Lock, Clear

Condition: New
Brand: Safety Technology International
Status: Active
SKU: 2094
Manufacturer Part #: STI-7521-HTR


These covers are ideal for protecting a wide range of devices, components and sensitive units from vandalism and accidental damage as well as weather, dirt, dust and grime. Covers are designed to keep the enclosure at a temperature above freezing which allows the protected unit to be installed outdoors, in freezers, unheated warehouses or storage units. The radiant heat plate prevents LCD displays from becoming sluggish or freezing and operates on 12, 16.5 or 24 VAC/VDC. The STI-7510-HTR/STI-7511-HTR enclosures include an external thumb or key lock and have a choice of two enclosed back boxes. STI-7520-HTR has a key lock and STI-7521-HTR has a thumb lock.

Additional information

Weight 2 lbs
Dimensions 8.10 × 10.06 × 3.25 in

Safety Technology International




Unit of Measurement

EA (Each)

Production Status



  • For use in areas where temperature or environmental conditions exceed the operating range of important devices.
  • Heater has three thermostats; a control thermostat, over temperature safety thermostat and a low temperature warning which can connect to a supervisory panel.
  • LED indicators for “POWER” to unit and heat cycle “ON”.
  • Includes 16.5VAC, 40VA Class 2 auto resetting transformer.
  • Multi-voltage heater.
  • Includes exterior thumb lock.
  • Mounting hardware and gaskets are included.
  • Each protected unit can be clearly seen and quickly identified.


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Safety Technology International Installation Instructions


STI - Installation Manual