18
19
TROUBLESHOOTING/ERROR CODES
Condition
Possible Cause
Corrective Action
Consistent low
temperature
readings (“Lo”)
Temperature
reading is below
measurement range
(below 50˚F/10°C).
Product Design-Measurement
range is 50˚– 122˚F (10° – 50°C).
Contact your physician if you
have or suspect any medical
problems.
The probe is not
positioned properly
in ear.
Make sure probe is properly
positioned against the opening
of the ear canal
The waterproof probe
is dirty.
Clean the probe with a
cotton swab moistened with
alcohol.
Consistent high
temperature
readings (“Hi”)
Temperature
reading is above
measurement range
(above 122˚F/50°C).
Product Design-
Measurement range is
50˚– 122˚F (10° – 50°C). Contact
your physician if you have or
suspect any medical problems.
Consistent error
messages (“Err”)
Operating temperature
is not within the
permissible range for
measurement.
Product Design-
Operating temperature is
60.8˚– 95˚F (16°– 35°C).
Low battery warning
Battery power
is low.
Replace battery (see “Inserting
and Replacing Batteries”).
Low battery warning
with “Lo” symbol
Battery power is too
low for the
thermometer to
function.
Replace battery
immediately (see “Inserting and
Replacing Batteries”).
PRODUCT SPECIFICATIONS
Model Number
Model Number TE-120
Power Source
DC 3 Volt (lithium battery CR2032)
Battery Life
1,700 Measurements in day mode or
700 Measurements in night mode.
Sensor
Thermopile
Temperature Indication
In 4 digits, every 0.1˚F or ˚C
Accuracy
+/- 0.4˚F/0.2°C between 96.8˚– 102.2˚F
(36.0° – 39.0°C)
+/- 0.5˚F/0.3°C less than 96.8˚F (36.0°C) or
greater than 102.2˚F (39.0°C)
Measurement Range
50˚– 122˚F (10˚– 50˚C)
Weight
0.12 lbs (with battery)
Operating Temperature
60.8˚– 95˚F (16˚– 35˚C)
Operating Humidity
Relative humidity up to 95%
(non-condensing)
Storage Temperature
-4˚– 122˚F (-20˚– 50˚C)
Storage Humidity
Relative humidity up to 95%
(non-condensing)
Contents
Ear Thermometer & Battery, Storage Case,
Instruction Manual
NOTE:
These specifications are subject to change without notice. This ear
thermometer meets requirements established in ASTM Standard E 1965-98.
