Introdución
This manual provides detailed instructions for the setup, operation, and maintenance of your Geevon Wireless Indoor Outdoor Thermometer & Hygrometer. This device is designed to accurately monitor indoor and outdoor temperature and humidity, offering essential environmental data at a glance. Please read this manual thoroughly before use to ensure optimal performance and longevity of your device.
Características do produto
- Multi-Channel Wireless Monitoring: Displays indoor temperature & humidity plus remote outdoor sensor data up to 200 ft (60 m), with support for switching between 3 channels.
- Accurate Temperature & Humidity: Provides precise readings: ±0.5 °C (±0.9 °F) in normal room temperatures and ±1 °C in extreme cold or heat. Indoor range: –10 to 50 °C (14–122 °F). Outdoor range: –40 to 70 °C (–40–158 °F).
- Pantalla LCD retroiluminada grande: A 3.78-inch screen shows time (12/24H), date, indoor/outdoor temperature, humidity, and trend arrows. Press any button to activate a 10-second backlight for easy night viewing.
- Built-In Alarm Clock & Snooze: Features a 12/24H selectable clock format with a wake-up alarm and a 5-minute snooze function. A touch-activated button provides light and snooze functions.
- Battery Operated & Flexible Placement: Uses 2 AA batteries for the main unit and 2 AA for the sensor (not included). The compact design includes a kickstand, magnetic backing, and wall mount for versatile placement.

Figure 1: Main unit display with key features labeled, including time, date, indoor/outdoor temperature and humidity, and trend indicators.

Figure 2: Display showing temperature and humidity trends, along with buttons to view maximum and minimum records.
O que hai na caixa
Ao desembalar, asegúrese de que estean presentes todos os artigos:
- 1 x Unidade de visualización principal
- 1 x TX33 Outdoor Sensor
- 1 x manual de instrucións
Configuración
1. Instalación da batería
Unidade principal: Open the battery compartment on the back of the main unit. Insert 2 AA batteries (not included), ensuring correct polarity (+/-). Close the compartment.
Sensor exterior: Open the battery compartment on the back of the outdoor sensor. Insert 2 AA batteries (not included), ensuring correct polarity (+/-). Close the compartment.
2. Emparejamento Inicial
After installing batteries in both units, the main unit will automatically search for the outdoor sensor. Place the sensor within range of the main unit. The outdoor temperature and humidity should appear on the main display within a few minutes. If not, press the 'CH' button on the main unit to manually search for the sensor.
3. Configuración da hora e da data
- In normal display mode, press and hold the 'SET' button to enter time setting mode.
- The hour digit will flash. Use the 'UP' or 'DOWN' buttons to adjust the hour.
- Press 'SET' to confirm and move to the next setting (minutes, year, month, day).
- Repeat the adjustment process for each setting.
- Press 'SET' again to exit the setting mode.
4. Temperature Unit Selection (°C/°F)
Press the 'C/F' button on the back of the main unit to switch between Celsius (°C) and Fahrenheit (°F).

Figure 3: Illustration of the one-touch button for switching between Celsius and Fahrenheit temperature units.
5. Sensor Placement Guidelines
- Place the outdoor sensor in a shaded, dry location away from direct sunlight and rain for accurate readings.
- The wireless range between the main unit and sensor is up to 200 feet (60 meters) in open air. Walls, metal objects, and other obstructions may reduce the effective range.
- Avoid placing the sensor near large metal objects, electrical appliances, or other sources of interference.

Figura 4: Examples of suitable placement for the main unit and remote sensor in different environments.
Operación
1. Lectura da pantalla
The large LCD displays the current time, date, indoor temperature, indoor humidity, outdoor temperature, and outdoor humidity. Trend arrows indicate whether temperature and humidity are rising, falling, or stable.
2. Activación da retroiluminación
Press the 'SNZ/LIGHT' button on the top of the main unit to activate the backlight for 10 seconds, improving visibility in low-light conditions.

Figure 5: The display with its soft 10-second backlight activated, ideal for night viewing.
3. Using the Alarm and Snooze Function
- Configuración da alarma: In normal display mode, press the 'ALARM' button (bell icon) on the back to view the alarm time. Press and hold 'ALARM' to enter alarm setting mode. Use 'UP' or 'DOWN' to adjust the hour and minutes, pressing 'ALARM' to confirm each step.
- Activación/Desactivación da alarma: Press the 'ALARM' button briefly to toggle the alarm on or off. An alarm icon will appear/disappear on the display.
- Función de Snooze: When the alarm sounds, press the 'SNZ/LIGHT' button on top to activate the 5-minute snooze. The alarm will sound again after 5 minutes. To stop the alarm, press any other button on the back.

Figure 6: The main unit displaying the time, indicating its alarm clock functionality with a snooze button.
4. Switching Channels
If you have multiple outdoor sensors (up to 3 supported), press the 'CH' button on the back of the main unit to cycle through the sensor channels (CH1, CH2, CH3) or to display all channels in rotation.

Figure 7: Diagram illustrating the capability of the thermometer to monitor up to three different locations using additional sensors.
5. Viewrexistros máximos/mín.
Press the 'MAX/MIN' button on the back to view the maximum and minimum temperature and humidity records for the last 24 hours. Press again to cycle through Max, Min, and current readings.
Opcións de colocación
The main unit offers flexible placement options:
- Soporte: Use the integrated kickstand for tabletop placement.
- Soporte magnético: Attach the unit to metallic surfaces like refrigerators.
- Montaxe na parede: Utilize the hanging hole on the back for wall mounting.

Figure 8: Various placement methods for the main unit, including a base stand, magnetic back, and hanging hole.
Mantemento
- Limpeza: Limpe o dispositivo cun suave, damp pano. Non use produtos de limpeza abrasivos nin mergullo en auga.
- Substitución da batería: Substitúa as pilas tanto da unidade principal como do sensor cando apareza o indicador de pila baixa na pantalla. Asegúrese de que a polaridade sexa correcta.
- Almacenamento: Se garda o dispositivo durante un período prolongado, retire todas as baterías para evitar fugas. Gárdeo nun lugar fresco e seco.

Figure 9: The low battery indicator displayed on the screen, prompting battery replacement.
Resolución de problemas
| Problema | Causa posible | Solución |
|---|---|---|
| Sen pantalla na unidade principal. | As pilas están gastadas ou inseridas incorrectamente. | Substitúa as pilas, asegurándose de que a polaridade sexa correcta. |
| Sen lectura de temperatura/humidade exterior. | Sensor fóra de alcance, batería baixa do sensor ou interferencias. | Move sensor closer to the main unit. Replace sensor batteries. Relocate sensor away from interference sources. Press 'CH' button to re-sync. |
| Lecturas de temperatura/humidade incorrectas. | Sensor exposto á luz solar directa, á choiva ou a fontes de calor. | Relocate the outdoor sensor to a shaded, dry area. Ensure proper ventilation around both units. |
| A alarma non soa. | A alarma non está activada. | Ensure the alarm icon is visible on the display. Refer to 'Using the Alarm and Snooze Function' section. |
Especificacións
- Modelo: GE-256388-BK-WUS
- Marca: Geevon
- Cor: Negro E
- Rango de temperatura interior: –10 to 50 °C (14–122 °F)
- Rango de temperatura exterior: –40 to 70 °C (–40–158 °F)
- Precisión da temperatura: ±0.5 °C (±0.9 °F) at normal room temperatures; ±1 °C at extreme temperatures
- Humidity Measuring Accuracy: ±3% RH (@25°C, 30%RH to 80%RH)
- Alcance sen fíos: Up to 200 ft (60 m) in open air
- Power Supply (Main Unit): 2 pilas AA (non incluídas)
- Power Supply (Sensor): 2 pilas AA (non incluídas)
- Visualización: Large LCD with 10-second backlight
- Compoñentes incluídos: Main unit, TX33 outdoor sensor, Instruction Manual
Garantía e Soporte
Garantía: This product comes with a 1-Year Manufacturer's Warranty. Please retain your purchase receipt for warranty claims.
Soporte: For any questions, technical assistance, or warranty inquiries, please contact Geevon customer support through the retailer's platform or the contact information provided on the product packaging.