Rohlfing's of Cleveland, Inc.
     507-934-5960 or 800-366-6977


6 Models to choose from
to fit your needs.

Call for prices and 

Main Features:
  • Easy to operate.
  • Temperature recall-recalls the highest and lowest temperatures since the last reset.
  • Temperature curve - easy to pre-select the best temperature for each day.
  • Lightning protection - a replaceable fuse protects the controller from potential lightning strikes.

Call for more information,
literature and prices.
VENTRA™ Controllers provid ideal environmental conditions.  The new and efficient way to manage
production facilities using computer logic and site-specific flexibility.

  • Easy-to-read 2-line backlit display.
  • Multiple zone capability up to 9 zones.
  • Shared sensor technology provides ultimate climate control by controlling any device with any sensor.
  • Built in fuse.
  • Heavy duty NEMA-4X enclosure protects electronics from moisture and dust for greater reliability and life.

24 Hour Clear View Timer
1/2 Hour minimum and 23 1/2 Hour 
maximum on or off time.  Includes
 pinsfor 2 on/off operations.

120 V, SPST                   
208-277 V, SPST           

Digital Thermometer-
  • Measures humidity and temperature instantly.
  • Readings can be stored and recalled.
  • Runs on 2 AAA batteries

Hi-Low Thermometer

Records the hi-low
temperature as well as
the current temperature.


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To Order or for More Information, Call Rohlfings
1-800-366-6977 or 507-934-5960
Fax 507-934-1721