ReliOn Prime User Instruction Manual page 60

Thermometer symbol - E6.
Temperature outside of acceptable range of 41–113°F
(5–45°C). You will not obtain a reading. Allow the meter
to warm up or cool down slowly to between 50–104°F
(10–40°C) or at least to 41–113°F (5–45°C).
• Before testing, always make sure the meter is at operating temperature
between 50–104°F (10–40°C). Treat test results obtained outside the
optimum temperature range with caution.
• If the meter has been exposed to extreme temperatures, move the meter to
an area within operating range of 50–104°F (10–40°C).
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