CT111C
INSTRUCTION MANUAL
Features
- Electronic thermometer
- Display of indoor or outdoor temperature.
- Memory functions to recall and display the previous
maximum and minimum reading of temperature
- 2.8m external sensor probe
- Selectable °C/°F temperature unit of measure.
- Wall mounting and table standing feature.
- Backlight
Keys & Display
1. Indoor Temp. Display
2. Outdoor Temp. Display
3. Light Button
4. Clear Button
5. Max / Min Memory Button
6. °C / °F Switch
Battery Installation
Slide and open the battery compartment on the rear of the unit and insert one 1.5 V AAA Battery following the
polarity diagram.
Note :
Remove the clear film label over the LCD panel so LCD panel is visible.
Thermometer Operation
To Read and/or Clear Indoor Max - Min Temperature
1st Press “MAX - MIN MEMORY” button (5).
To Read and/or Clear Outdoor Max - Min Temperature
2nd Press “MAX - MIN MEMORY” button (5).
Note:
Actual indoor and outdoor temperature automatically reappears to normal temperature display mode after
5 seconds if no key is pushed.
To Select °C or °F Temperature Reading
Slide switch to °C or °F position to choose your desired temperature reading.
Using the Backlight
You may check the temperature anytime in the dark by simply pressing the LIGHT button (3) once. The display
will light up with a soft glow that lasts for a while.
Note:
Frequent use of this feature will affect battery life.
To Install the Outside Temperature Sensor
Remove the paper on the double tape of the temperature sensor. Put sensor out of the window and stick it on
any flat surface. Carefully route the wire inside and gently close the window. This sensor will monitor the outside
temperature.
General Comments:
1. When the display becomes too faint, the battery needs to be replaced to ensure of the product’s accuracy and
functionality.
2. If any problem occurs, remove the battery. Test the old battery or replace it with a new one. Dispose of used
battery according to the country’s regulations.
3. The quality of the instrument won't be insured if the product is damaged by negligence, improper usage or
dismantling of the parts.
Specifications:
1. Measuring range:
Temperature:
INDOOR 0°C~50°C
（
32°F~122°F
）
OUTDOOR -50°C~70°C (-58°F~158°F)
2. Accuracy:
IN/OUT temperature:
±1°C
（
±2°F
）
within range 15°C~35°C (59°F~95°F)
±2°C (±4°F) at the remaining range
3. Resolution:
Temperature: 0.1°C
（
0.1°F
）
4. Battery: 1.5V AAA
© Irox Development Technology www.irox.com
Input 16277
Creative Products 281A (irox CT111C)
Size: 140mm(W) x 100mm(H) 20 pages
P.9
English
P.10
P.11
P.12
Indoor
MAX
Temp
Press ‘
CLEAR
’
button (4) to
clear indoor
MAX-MIN TEMP
memory record.
Indoor
MIN
Temp
Outdoor
MAX
Temp
Press ‘
CLEAR
’
button (4) to
clear outdoor
MAX-MIN TEMP
memory record.
Outdoor
MIN
Temp
C
F
1
6
4
5
3
2
CLEAR
MEMORY
LIGHT
MAX
MIN
