1. Introducción
The ThermoPro TP157 Hygrometer Indoor Thermometer is designed to provide accurate and fast readings of indoor temperature and humidity. This compact device helps you monitor environmental conditions in various spaces such as your home, baby room, greenhouse, or office, ensuring a comfortable and healthy living environment. Its high-performance sensor refreshes readings every 10 seconds, allowing for timely adjustments to your humidistat or thermostat.

Figure 1: ThermoPro TP157 Hygrometer Indoor Thermometer
2. Contenido del paquete
Upon opening the box, please ensure all the following items are included:
- 1 x ThermoPro TP157 Hygrometer Indoor Thermometer
- 1 pilas AAA
- 1 x Manual de usuario
- 1 x Customer Support Card

Figura 2: Contenido del paquete
3. Configuración
Follow these steps to set up your ThermoPro TP157:
- Instalación de la batería: Locate the battery compartment on the back of the device. Open the cover and insert the included 1 AAA battery, ensuring correct polarity (+/-). Close the battery compartment cover securely.
- Encendido inicial: The device will automatically power on once the battery is correctly installed. The current temperature and humidity readings will appear on the LCD display.
- Calibración: For the most accurate readings, allow the device to stabilize in its intended location for at least 30 minutes to an hour.

Figura 3: Instalación de la batería
Video 1: Introduction and Setup of the ThermoPro TP157 Hygrometer. This video demonstrates the unboxing, battery installation, and initial power-on of the device.
4. Instrucciones de funcionamiento
4.1. Pantalla LCD
The large, clear LCD display shows temperature and humidity readings with compact digits for easy viewing from various angles and distances.
- Temperatura: Displays the current temperature in either Fahrenheit (°F) or Celsius (°C).
- Humedad: Muestra el porcentaje actual de humedad relativa.tagmi (%).
- Indicador de comodidad: Three face icons visually represent the current air conditions:
- SECO (sad face): Humidity is below 30%.
- COMODIDAD (smiley face): Humidity is between 30% and 60%, and temperature is between 68°F and 79°F.
- HÚMEDO (neutral face): Humidity is above 60%.

Figure 4: LCD Display with Comfort Indicator

Figure 5: Detailed Comfort Indicator Ranges
4.2. Cambio de unidades de temperatura
To switch between Fahrenheit (°F) and Celsius (°C), press the F/C button located on the back of the device. Each press will toggle the temperature unit.
4.3. Opciones de colocación
The ThermoPro TP157 offers versatile placement options to suit your needs:
- Soporte de mesa: Utilize the foldable stand on the back to place the device upright on any flat surface, such as a desk, shelf, or nightstand.
- Parte trasera magnética: The strong magnetic back allows you to attach the hygrometer to metallic surfaces like refrigerators or metal cabinets.
- Agujero para colgar: Use the integrated hanging hole to mount the device on a wall or hook.

Figura 6: Múltiples opciones de ubicación
Video 2: Features and Usage of the TP157 Indoor Thermometer. This video highlights the display, unit conversion, and various placement methods.
4.4. Bluetooth Connectivity (TP357 Model - for reference)
While the TP157 is a standalone unit, some ThermoPro models like the TP357 offer Bluetooth connectivity to a smartphone app. This allows for remote monitoring of temperature and humidity, historical data tracking, and setting alerts. If you have a Bluetooth-enabled ThermoPro device, refer to its specific manual for app pairing instructions.
5. Mantenimiento
- Reemplazo de batería: When the display dims or stops showing readings, it's time to replace the AAA battery. Follow the battery installation steps in Section 3.1. The device is designed for low power consumption, offering a battery life of 18-24 months.
- Limpieza: Limpie el dispositivo con un paño suave, damp Paño. No utilice limpiadores abrasivos ni sumerja la unidad en agua.
6. Solución de problemas
If you encounter issues with your ThermoPro TP157, please refer to the following common troubleshooting tips:
| Problema | Posible causa / solución |
|---|---|
| La pantalla está tenue o en blanco. | Battery is low or depleted. Replace the AAA battery. Ensure correct polarity. |
| Lecturas inexactas de temperatura y humedad. |
|
| Partial digits on display. | This can sometimes indicate a low battery or a temporary display glitch. Try replacing the battery. If the issue persists, contact customer support. |
7. Especificaciones
- Temperature Gauge Range: -58 °F a 158 °F (-50 °C a 70 °C)
- Precisión de temperatura: ±1°F/°C
- Resolución de temperatura: 0.1 °F/°C
- Humidity Meter Range: 10% a 99% HR
- Precisión de humedad: ±2% to 3% RH
- Resolución de humedad: 1%
- Frecuencia de actualización: 10 segundos
- Batería: 1 pilas AAA de 1.5 V (incluidas)
- Duración de la batería: 18-24 meses
- Dimensiones del producto: 2.1"W x 0.2"H (Note: This dimension seems incomplete from source, typically includes depth)
- Peso del artículo: 1.2 onzas (34 gramos)
- Tipo de montaje: De mesa, magnético, colgante
8. Garantía y soporte
ThermoPro provides a warranty for this product against defects in materials and workmanship. For detailed warranty information, product registration, or technical support, please refer to the included Customer Support Card or the official ThermoPro website. You can also access the full User Manual in PDF format via this link: ThermoPro TP157 User Manual (PDF).
For further assistance, please contact ThermoPro USA customer service.





