Laboratory Thermometers

LABORATORY TESTING AND GENERAL PURPOSE BIMETAL THERMOMETERS

Tel-Tru laboratory thermometers can be found in a wide variety of laboratory and general purpose applications, including pharmaceutical, environmental, food, petroleum, concrete, asphalt, soil, photography and OEM equipment. Our thermometers measure a sample or environment with high accuracy, and our wide selection of temperature ranges fit almost any application.

TO ORDER, CLICK ON THE PRODUCT IMAGES BELOW.

MODELS:

GT-100 and MT-39 1-3/4" Diameter Head
GT-100R and MT-39R 1-3/4" Diameter Head with Calibration Feature
LT-225 2" Diameter Head
LT-225R and BT-275R 2" Diameter Head with Calibration Feature
LT-330R 3" Diameter Head with Calibration Feature

IMPORTANT NOTES:

  • For most accurate reading, immerse Tel-Tru thermometers past groove on lower portion of stem.
  • MT and BT models are designed with the Tel-Tru unique pressure relief ring feature designed to prevent pressure build up in thermometer head while cooking in a hot oven.
  • Some models and ranges are NSF® certified (National Sanitation Foundation).

These models are used for general-purpose testing applications such as pharmaceutical, environmental, food, petroleum, concrete, asphalt, soil, photography and OEM equipment.
  • Accuracy: ±1% full span per ASME B40.3 Grade A.
  • Construction: 304 stainless steel external parts. Welded construction. Corrosion resistant to most chemicals.
  • Hermetic Seal: Per ASME B40.3 dustproof and leakproof.
  • Dial: Anodized aluminum with large black numbers and graduations.
  • Bimetal Coil: Helix coil is silicone coated on ranges below 500°F for vibration dampening and to maximize heat transfer and response time.
  • Over Temperature Limits:
    Up to 250°F         100%
    250°F to 550°F     50%
    550°F to 1000°F   continuous use up to 800°F, intermittent use over 800°F.
  • Threaded connections: Available on non-recal models.
  • Pocket sheath: For 5" or 8" stem.
  • Silicone fill: On LT-225 and LT-225R models.
  • Configuration: Other combinations available upon request.
  • Stem Lengths: 5", 8", 12" and 18".
  • Stem Diameter: .150" standard up to 18" stem. Other stem diameters .140" (3.6mm) and .187" (4.7mm)
  • Connection: GT-100, MT-39 and LT-225 plain bushing is standard. GT-100R, MT-39R, LT225R, BT-275R and LT-330R recalibrating nut is standard.
  • External Reset: GT-100R, MT-39R, LT-225R, BT-275R and LT-330R friction nut design for easy calibration.
  • Lens materials: Available including standard glass, acrylic, polycarbonate, or tempered glass.
  • Lens: GT, MT, and LT models glass is standard. LT-330R polycarbonate lens is standard.
  • Adjustable Pan Clip: Standard on 5" and 8" GT-100R, LT-225R, and LT-330R (for tank and tray mounting).
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