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Model TL-1

Precision Laboratory Thermometer

The TL-1A thermometer is intended to be used anywhere a precision glass stem thermometer or other type thermometer may be used.

The TL-1A is our latest stem thermometer. It is an improved version of the original ThermoProbe model TL-1. The TL-1A incorporates glass thermometer simplicity and reliability with the ease of a digital display. Like precision mercury thermometers, the TL-1A has accuracy, repeatability and long-term stability. But unlike those thermometers there will never be problems with mercury separation or hazardous material cleanup. Different from most electronic thermometers, the “Cordless” TL-1A has no wires to get in the way or break. Battery replacement is easily done through a sealed cover. Encoded calibration is unaffected by temperature, vibration or battery removal. Low battery display, and failure mode indications protect the user from false data.
4 Point NIST Traceable Calibration and a one year warranty included.

NEW FEATURES exclusive to the TL-1A include; auto-off after 20 minutes to save battery life, minimum reading, maximum reading, averaging, easier °F to °C switching and an optional serial output. In addition, the new display constantly indicates temperature increasing or decreasing activity.

One year warranty.
DISPLAY: LCD with 0.25 inch characters switchable in Units of °F or °C. Low Battery & Fault indication.
CONSTRUCTION: Stainless Steel temperature sensor, standard lengths 3", 8", 8cm, 20cm with narrow sensing tip. Sensor mount acetal plastic. Electronics and display in 3.5" x 1.2" anodized Aluminum enclosure. Nitrile seal. Scratch Resistance display window
WEIGHT: 4 ounces
TEMPERATURE: -44 to 600 °F, -43 to 315 °C Complete Range. 0.1 Degree Resolution, < +0.2 °F Accuracy below 250 °F, + 0.4 °F Accuracy 250-600 °F.
TEMPERATURE. RESPONSE: 32 to 200 °F in 25 seconds, water bath.
ELECTRONICS: Microcontroller and precision A/D Converter with EEPROM memory. Min. ambient temp. depended on battery condition, max. ambient temp. 75 °C. 1000 Ohm, Class A RTD, 0.05%/yr max. drift
BATTERY: 20mm Coin Size 3V Lithium , Type 2032, 400 hour service life.
OPTIONS: Stem length to 39", 1 m. Custom lengths available on request.



Hartwig instruments
Pottebakkerstraat 15
NL3194AD Rotterdam-Hoogvliet
Tel: +31(0)10-438-5286
Fax: +31(0)10-438-2099
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