Introducció
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.
Característiques del producte
- 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.
- Temperatura i humitat precises: 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).
- Gran pantalla LCD retroil·luminada: 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.
Què hi ha a la caixa
En desempaquetar, assegureu-vos que hi hagi tots els elements presents:
- 1 unitat de visualització principal
- 1 x TX33 Outdoor Sensor
- 1 x manual d'instruccions
Configuració
1. Instal·lació de la bateria
Unitat principal: Obriu el compartiment de les piles a la part posterior de la unitat principal. Introduïu 2 piles AA (no incloses), assegurant-vos de la polaritat correcta (+/-). Tanqueu el compartiment.
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. Maridatge 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. Configuració de data i hora
- 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).
- Repetiu el procés d'ajust per a cada configuració.
- Premeu 'SET' de nou per sortir del mode de configuració.
4. Selecció de la unitat de temperatura (°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.
Funcionament
1. Lectura de la 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. Activating Backlight
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
- Configuració de l'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.
- Activació/desactivació de l'alarma: Press the 'ALARM' button briefly to toggle the alarm on or off. An alarm icon will appear/disappear on the display.
- Funció de posposar: 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. Viewing Max/Min Records
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.
Opcions d'ubicació
La unitat principal ofereix opcions de col·locació flexibles:
- Suport de peu: Use the integrated kickstand for tabletop placement.
- Suport magnètic: Attach the unit to metallic surfaces like refrigerators.
- Muntatge en paret: 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.
Manteniment
- Neteja: Netegeu el dispositiu amb un suau, damp tela. No utilitzeu netejadors abrasius ni submergiu en aigua.
- Substitució de la bateria: Replace batteries in both the main unit and sensor when the low battery indicator appears on the display. Ensure correct polarity.
- Emmagatzematge: Si guardeu el dispositiu durant un període prolongat, traieu totes les piles per evitar fuites. Guardeu-lo en un lloc fresc i sec.

Figure 9: The low battery indicator displayed on the screen, prompting battery replacement.
Resolució de problemes
| Problema | Causa possible | Solució |
|---|---|---|
| No hi ha cap pantalla a la unitat principal. | Les piles estan gastades o incorrectament inserides. | Canvieu les piles, assegurant-vos de la polaritat correcta. |
| No hi ha lectura de temperatura/humitat exterior. | Sensor fora de rang, bateria baixa del sensor o interferències. | Move sensor closer to the main unit. Replace sensor batteries. Relocate sensor away from interference sources. Press 'CH' button to re-sync. |
| Lectures de temperatura/humitat inexactes. | Sensor exposed to direct sunlight, rain, or heat sources. | Relocate the outdoor sensor to a shaded, dry area. Ensure proper ventilation around both units. |
| L'alarma no sona. | L'alarma no està activada. | Ensure the alarm icon is visible on the display. Refer to 'Using the Alarm and Snooze Function' section. |
Especificacions
- Model: GE-256388-BK-WUS
- Marca: Geevon
- Color: Negre E
- Interval de temperatura interior: –10 to 50 °C (14–122 °F)
- Interval de temperatura exterior: –40 to 70 °C (–40–158 °F)
- Precisió de la 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)
- Interval sense fil: Up to 200 ft (60 m) in open air
- Power Supply (Main Unit): 2 piles AA (no incloses)
- Power Supply (Sensor): 2 piles AA (no incloses)
- Visualització: Large LCD with 10-second backlight
- Components inclosos: Main unit, TX33 outdoor sensor, Instruction Manual
Garantia i Suport
Garantia: This product comes with a 1-Year Manufacturer's Warranty. Please retain your purchase receipt for warranty claims.
Suport: 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.