TempAlert Ethernet Gateway
User Manual
www.tempalert.com
Tel: (866) 524-3540
Page
14
of
22
TempAlert Ethernet Gateway User Guide v 4.22
186 Lincoln Street, 8
th
Floor, Boston MA 02111 | p: (866) 524-3540 | f: (866) 415-9884 | www.tempalert.com | [email protected]
Temperature Reading is a Few Degrees Warmer or Colder than Expected
Check Sensor Position
If the sensor is positioned near the exhaust fan or near a cold air fan. Micro-climates can cause
inaccurate readings. Our sensors are rated to be within ±0.5°C (±1°F) and can be NIST/ISO
certified by an accredited lab to ensure this reading accuracy.
Comparing Against Our Sensors
When comparing the temperature readings from our sensors to another thermometer or data
logger, it's important to be mindful of the following:
1.
The margin of error of the comparison tool:
Many thermostats will have a much higher
margin of error than our sensors, ±0.5°C (±1°F).
2.
The temperature gradient of the room, refrigerator, or any other placement is in three
dimensions:
Measuring the temperature in one part of the location can yield different results
than in another part of the same location due to micro-climates.
3.
Air temperature changes faster than the temperature of a large amount of liquid:
Air
temperature in a refrigerator may rise dramatically when the door is opened, but the
temperature of the contents of the refrigerator will rise more slowly due to their increased
thermal mass. We recommend the use of a buffer vial (virtual or physical) to ensure proper
readings are obtained at all times.
4.
IR guns measure surface temperature while our sensors measure ambient air temperature or
buffered temperatures.
