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These typically battery powered digital
thermometers are basically temperature-sensing instruments that have a
digital display, permanent probes and are portable. There are many
characteristics of display scale for digital thermometers. These include
measurement in Celsius, Centigrade or Fahrenheit. Digital thermometers
can usually display temperatures in Fahrenheit or Celsius, or even both
in a dual scale thermometer. The minimum and maximum values of
temperature that can be displayed are the thermometer display range
while the scale division is the smallest division of degrees that can be
displayed. It may also be referred to as a resolution in digital
instruments.
Current application options that are
available for digital thermometers are like HVAC, explosion proof
construction, splash proof or watertight device, and sanitary
applications. An explosion proof thermometer is a device that can
withstand an explosion of gases within it and prevent the explosion of
gases surrounding it due to sparks, flashes or the explosion of the
container itself, and maintain an external temperature, which will not
ignite the surrounding gases.
HVAC thermometers are for HVAC applications
such as such or flume monitoring. Watertight thermometers are designed
for wet environment applications. Sanitary thermometers are for sanitary
use such as food or pharmaceutical applications. Other features include
datalogger or data collection capabilities, recording of minimum and
maximum values, internal timers and counters, ability to perform math or
statistical functions, self-test or diagnostic capabilities and battery
powering.
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