61 TR50 - User Guide
5.4 Temperature Unit Change
Temperature units from
o
F to
o
C can be changed by long pressing the middle of the
touch button for 5 seconds. (This change applies only to TR50-3D and TR50-5D).
5.5 Factory Reset
1. Power up the sensor device.
2. Wait for 5 seconds, LED halo ring indicate Air quality level.
3. Hold whole button area for 10 seconds by your 3 or more fingers.
4. LED ring will blink quickly with the cycle of Green-Red-Green-Red-Green-Red-...
5. Remove your finger from button area.
6. LED ring will stay with White ON.
7. Click middle button once within 5 seconds.
8. LED ring will be White ON and LCD display "0000" (Only for TR50-5D
and TR50-3D)
9. Wait until the device run "Reset to Factory Default" and then reboot.
10. Wait a moment, Smart Sensor will light LED.
11. Complete “Reset”.
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