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GEEVON Thermometer

Item No.T228646

User Manual

Thank you for purchasing T228646 Thermometer.

Please take a moment to read this guide and store it for 

future reference.

Features & Benefits:

DISPLAY UNIT & OUTDOOR SENSOR

1. Channel 1 outdoor temperature and humidity

2. Channel 1 comfortable level

3. Channel 1 temperature alert

4. Channel 2 outdoor temperature and humidity

5. Channel 2 outdoor temperature and humidity max/min 

record

6. Channel 2 humidity alert

7. Channel 3 outdoor temperature and humidity

8. Indoor temperature and humidity

9. Channel indicator icon

10. Tendency indoor temperature

11. MEM/▼/      button

12.       button

13. CH/▲ button

14. Wall mount hole

15. Battery Compartment 2xAA (batteries not included)    

16. Outdoor sensor display

17. Wireless signal indicator

(Flashes when data is being sent to the display unit)

18. Integrated hang hole

19. C/F Switch hole

20. Compartment 2xAAA batteries (batteries not included)

21. TX channel selector, select external sensor channel

Package Contents:

1. Display Unit

2. 3 x Outdoor Sensor

3. Instructions Manual

Installing or Replacing Batteries:

•We recommend using high quality alkaline batteries for the 

best product performance. 

•Heavy duty or rechargeable batteries are not recommended. 

•The outdoor sensor requires high quality alkaline batteries in 

low temperature conditions. Cold temperatures could cause 

other batteries to function improperly.

•Do not mix old and new batteries. Do not mix alkaline, 

standard, and/or rechargeable batteries.

Default settings:

1. Default temperature: °F

The LCD display fully for 3 seconds when changing new 

battery or resetting, then with a sound BI into the normal 

state, after testing temperature, receiving RF for 3 minutes. 

Display / Keys Details:

There are totally 3 keys for the alarm clock, they are 

included: MEM/▼/     ,      , CH/▲.

1. MEM/▼/     buttons: 

a. Press to decrease the setting value during setting.

b. Press and hold 2 seconds button for fast adjust during 

setting mode.

c. In normal display mode, press this button to display 

max/min temperature/humidity of the channel where the 

arrow is located.

d. In normal display mode, press and hold this button to 

switch between °C and °F.

e. Press and hold this button to clear the record of MAX/MIN 

temperature and humidity when display shows MAX or MIN 

temperature and humidity.

2.      buttons:

a. In normal display mode, press this button to display HI/LO 

temperature/humidity alert.

b. In checking mode, press and hold this button to enter alert 

mode.

c. In setting mode, press this button to confirm the setting; 

press and hold this button to open or close alert.

3. CH/▲buttons:

a. Press to increase the setting value during setting.

b. Press and hold 2 seconds button for fast adjust during 

setting mode.

c. In normal display mode, press this button to select the 

setting channel.

d. In normal display mode, press and hold to clear data and 

search RF.

Indoor/outdoor temperature and humidity:

1. Indoor temperature -10°C ~ 60°C (50°F ~ 140°F), display 

LL.L when below -10°C and display HH.H when higher than 

60°C.

2. Outdoor temperature -50°C ~ 70°C (-58°F ~ 158°F), 

display LL.L when below -50°C and display HH.H when 

higher than 70°C.

3. Temperature resolution: 0.1°C

4. Indoor and outdoor humidity range: 20%-95%, display 

20% when below 20% and display 95% when higher than 

95%.

5. Humidity resolution: 1 %RH

Accuracy:

1. Temperature accuracy:

-40°C ~ -20°C: ± 4°C

-20°C ~ 0°C: ± 2°C

0°C ~ +50°C: ±1°C

Note: when the temperature in -50°C  ~ -40°C and 50°C ~ 

70°C range, the temperature is only for reference. 

2. Humidity accuracy: +/- 5 % RH (@25°C , 30%RH to 

50%RH); +/- 10 % RH (@25°C , 20%RH to 29%RH, 51%RH 

to 95%RH)

Temperature alert set:

1. In standard mode, press “     ” to check the alert setting 

value, the order is: HI AL→ LO AL→ current temperature and 

humidity

2. In checking mode, press and hold “      ” to enter alert 

setting of the channel where the arrow

is located. In setting mode, press and hold “ALERT” button to 

open or close alert function of the channel where the arrow is 

located. 

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