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Reotemp’s Thermal Isolation Bottles (TIB) are used to monitor the temperature of ultra low freezers, refrigerators, incubators, walk-in freezers, and other critical applications. The isolation bottles are filled with glass beads, glycol, or are filled by the customer with matching media. Then, a RTD sensor is inserted into the bottles. By submerging the temperature sensor, the Thermal Isolation Bottle ensures the temperature readings will not be thrown off when the door is opened and ambient air rushes in. The result is a highly accurate and stable temperature reading that mimics the temperature of the critical medium being monitored.

  • High Accuracy RTD’s with Matched Pair Accuracy (±0.20% of span or 0.1°C, whichever is greater. (Optional))
  • High Accuracy 4-20mA 2-Wire Transmitter Output
  • NEMA-4X Washdown Rated Polycarbonate Enclosure
  • Digital Display (optional)
  • Metal Mounting Bracket for Stability

RTD and Transmitter Combined Accuracy Matched Pair (Optional): ± 0.2% of span or 0.1°C, whichever is greater
RTD Accuracy Class A = ± (0.15 + 0.002|t|)°C [-30/200°C]
Transmitter Accuracy ±0.1% of Span
RTD Type Stem/Bottle/Wire: -200/120°C (-328/248°F)
Food Grade USP (Propylene glycol); non-toxic: -40/120°C (-40/248°F)
Soda Lime Glass: -200/120°C (-328/248°F)
Transmitter: -40/85°C (-40/185°F)
Stem Diameter 3/16″
Wire AWG #22, Stranded, TFE Insulated, with TFE Jacket Overall
Thermowell 316 Stainless Steel (some models)
Transmitter 4-20mA Output, 8 to 35 VDC Loop Powered
Connection Box Polycarbonate Enclosure, NEMA-4X
Bottle Fill Glass Beads (Soda Lime Glass)
Food Grade USP (Propylene glycol); non-toxic
Empty (Customer to Fill)
Bottle Sterility Lab Quality, Non-Sterile
Bracket Material 316 Stainless Steel
Bracket Size (H x W x D): 2oz Bottle: 2.5″ (64mm) x 1.5″ (38mm) x 1.8″ (46mm)
8.5oz Bottle: 3.4″ (86mm) x 2.6″ (66mm) x 3″ (76mm)
Mounting Screws/Material #10-16 Thread x 1/2″ (12.7 mm) / 410 Stainless Steel
Insulation Resistance 1,000 Megohms minimum at 500 VDC