1. Introducción
Thank you for choosing the DOOMAY Mini Digital Hygrometer Indoor Thermometer. This device is designed to provide accurate and real-time monitoring of temperature and humidity in various indoor environments. Its compact size and clear display make it suitable for use in baby rooms, cellars, reptile incubators, closets, and more. Please read this manual thoroughly before use to ensure proper operation and longevity of the product.

Image: The DOOMAY Mini Digital Hygrometer displaying temperature and humidity, placed on a wooden surface amidst potted plants, highlighting its compact design and clear display.
2. Información de seguridad
- No exponga el dispositivo a temperaturas extremas ni a la luz solar directa durante períodos prolongados.
- Avoid contact with water or other liquids. This device is not waterproof.
- Keep out of reach of children to prevent accidental ingestion of small parts, especially the battery.
- No intente desmontar ni modificar el dispositivo. Esto anulará la garantía.
- Deseche las baterías usadas de acuerdo con las normas locales.
3. Características del producto
- Alta precisión: Monitors environment every 10 seconds with 11 sensitive vents.
- Amplio rango de medición: Temperature from -9.9°C to 60°C (14.2°F to 140°F), Humidity from 10% to 99% RH.
- Precisión de temperatura: ±1°C (0~40°C), ±2°C (40~60°C).
- Precisión de humedad: ±3-5% RH.
- Interruptor Celsius/Fahrenheit: Alterne fácilmente entre unidades de temperatura.
- Indicador de comodidad: Smiley and sad face icons visually represent comfort levels.
- Pantalla LCD clara: Large digits for easy readability.
- Tamaño compacto: Mini dimensions (approx. 5cm x 3.5cm x 1.3cm) for portability and space-saving.
- Múltiples opciones de ubicación: Can be placed on a flat surface or mounted using the included 3M adhesive pad.
- Batería de larga duración: Powered by a CR2032 battery (included).

Image: Detailed diagram showing the components of the hygrometer, including the comfort indicator, battery icon, real-time humidity, real-time temperature, air hole, battery compartment, and °C/°F switch button.
4. Contenido del paquete
- DOOMAY Mini Digital Hygrometer (2 units)
- CR2032 Battery (pre-installed in each unit)
- 3M Adhesive Pad (2 units)
- Manual de usuario
5. Configuración
5.1. Encendido inicial
The device comes with a pre-installed CR2032 battery. It should power on automatically once removed from its packaging. If the screen is blank, please check the battery installation.
5.2. Instalación/Reemplazo de la Batería
- Localice la tapa de la batería en la parte posterior del dispositivo.
- Abra con cuidado la tapa de la batería.
- Inserte una nueva batería CR2032 con el lado positivo (+) hacia arriba.
- Cierre bien la tapa de la batería.
Video: This video demonstrates the easy installation of the CR2032 battery and the simple process of attaching the 3M adhesive for mounting the hygrometer.
5.3. Opciones de colocación
The hygrometer offers two convenient placement options:
- Superficie de la mesa: Place the device on any flat surface such as a desk, shelf, or counter.
- Montaje en pared: Use the provided 3M adhesive pad to stick the device to a clean, dry wall or other vertical surface. Ensure the surface is smooth and free of dust for optimal adhesion.

Image: Illustration of the two placement options for the hygrometer: standing on a flat surface and mounted on a wall using double-sided adhesive tape.
6. Instrucciones de funcionamiento
6.1. Lectura de la pantalla
The LCD screen displays the current temperature and humidity. The temperature is shown in large digits, typically on the left, and humidity on the right. A small icon indicates the comfort level.
6.2. Cambio de unidades de temperatura (°C/°F)
To switch between Celsius (°C) and Fahrenheit (°F), locate the small button inside the battery compartment. Press this button once to toggle the temperature unit.
6.3. Comfort Level Indicator
The device features a comfort indicator using face icons to quickly assess the environment:
- Cara sonriente: Indicates a comfortable environment (typically 19°C-27°C and 30%-70% RH).
- Cara neutra: Indicates conditions outside the optimal comfort range but not severely uncomfortable.
- Cara triste: Indicates an uncomfortable environment (e.g., too dry, too humid, too hot, or too cold).

Image: A table illustrating the comfort level indicators based on temperature and humidity ranges, showing when a smiling, neutral, or sad face icon will be displayed.
7. Mantenimiento
- Limpie el dispositivo con un paño suave y seco. No utilice limpiadores abrasivos ni disolventes.
- Ensure the air vents are not obstructed to maintain accurate readings.
- Reemplace la batería CR2032 cuando aparezca el indicador de batería baja en la pantalla.
8. Solución de problemas
| Problema | Posible causa | Solución |
|---|---|---|
| La pantalla está en blanco. | La batería está muerta o instalada incorrectamente. | Replace the CR2032 battery or ensure it is installed correctly with the positive side up. |
| Lecturas inexactas. | Obstructed air vents, device placed near heat/cold source, or device recently moved. | Ensure air vents are clear. Move the device away from direct heat sources (e.g., sunlight, heaters) or cold sources (e.g., air conditioners). Allow 10-15 minutes for readings to stabilize after moving. |
| Temperature unit won't change. | Botón no presionado correctamente. | Ensure the °C/°F switch button inside the battery compartment is pressed firmly. |
9. Especificaciones
| Modelo | 5289BP2 |
| Rango de temperatura | -9.9 °C a 60 °C (14.2 °F a 140 °F) |
| Precisión de temperatura | ±1°C (0~40°C), ±2°C (40~60°C) |
| Rango de humedad | 10% a 99% HR |
| Precisión de humedad | ±3-5% humedad relativa |
| Frecuencia de actualización | Cada 10 segundos |
| Tipo de batería | CR2032 (incluido) |
| Dimensiones | 5cm x 3.5cm x 1.3cm (2 inch x 1.34 inch x 0.51 inch) |
| Peso | Approx. 25g (0.88 oz) per unit |
| Tipo de montaje | Tabletop, Adhesive Mount |
10. Garantía y soporte
The DOOMAY Mini Digital Hygrometer Indoor Thermometer comes with a Garantía de 12 meses Desde la fecha de compra. Esta garantía cubre defectos de fabricación y mal funcionamiento en condiciones normales de uso.
For technical support, warranty claims, or any questions regarding your product, please contact DOOMAY customer service through the retailer where you purchased the product or visit the official DOOMAY websitio para información de contacto.
Conserve su comprobante de compra para fines de garantía.