1. Introducció
The Extech 445703 is a Big Digit Hygro-Thermometer designed for indoor use. It provides simultaneous display of humidity and temperature, featuring large, easy-to-read digits. This device is suitable for monitoring environmental conditions in various indoor settings such as homes, offices, greenhouses, and baby rooms. It includes a Min/Max function to track extreme readings and comes complete with necessary accessories for immediate use.
2. Característiques
- Large LCD with 1-inch digits for clear visibility.
- Simultaneous display of relative humidity and ambient temperature.
- Measures humidity from 10% to 99% RH.
- Measures temperature from 14°F to 140°F (-10°C to 60°C).
- Accuracy: ±5% RH and ±1.8°F (±1°C).
- Minimum/Maximum (Min/Max) function with reset capability.
- Data Hold function to freeze current readings.
- Includes a built-in stand and a wall mounting bracket for versatile placement.
3. Contingut del paquet
Verifiqueu que tots els elements siguin presents i en bon estat:
- Extech 445703 Big Digit Hygro-Thermometer
- Stand integrat
- Suport de muntatge a la paret
- One (1) AAA Battery
4. Configuració
4.1. Instal·lació de la bateria
- Localitzeu la tapa del compartiment de la bateria a la part posterior de la unitat.
- Feu lliscar la coberta oberta.
- Insert one (1) AAA battery, observing the correct polarity (+ and -) as indicated inside the compartment.
- Col·loqueu la coberta del compartiment de la bateria amb seguretat.
4.2. Col·locació
- Ús d'escriptori: Extend the integrated stand from the back of the unit to place it on a flat surface.
- Muntatge a la paret: Use the provided wall mounting bracket and appropriate hardware (not included) to secure the unit to a wall. Ensure the chosen location allows for accurate environmental readings, away from direct sunlight, heat sources, or drafts.
5. Instruccions de funcionament
5.1. Mostra mésview
The large LCD simultaneously shows the current temperature (top display) and relative humidity (bottom display). The unit automatically begins measuring upon battery installation.
- Visualització de la temperatura: Shows the current ambient temperature in either Fahrenheit (°F) or Celsius (°C).
- Pantalla d'humitat: Shows the current relative humidity in percentage (%).
5.2. Selecció de la unitat de temperatura
To switch between Fahrenheit (°F) and Celsius (°C), locate the small switch or button, typically on the back or side of the unit. Press or slide it to select the desired temperature unit.
5.3. Minimum/Maximum (Min/Max) Function
The Min/Max function allows you to view the highest and lowest temperature and humidity readings recorded since the last reset.
- Premeu el botó MAX/MIN button once to display the maximum recorded temperature and humidity. The "MAX" indicator will appear on the display.
- Premeu el botó MAX/MIN button a second time to display the minimum recorded temperature and humidity. The "MIN" indicator will appear on the display.
- Premeu el botó MAX/MIN button a third time to return to the current temperature and humidity display.
5.4. Resetting Min/Max Readings
To clear the recorded Min/Max values and start a new recording cycle:
- Mentre viewing either the MAX or MIN readings, press and hold the RESET button for approximately 3 seconds. The display will briefly show all segments, then return to current readings, indicating the Min/Max memory has been cleared.
6. Manteniment
6.1. Substitució de la bateria
When the battery power is low, a low battery indicator will appear on the display. Replace the AAA battery as described in the "Battery Installation" section (4.1).
6.2. Neteja
Clean the meter's casing amb un suau, damp cloth. Do not use abrasive cleaners or solvents. Ensure no moisture enters the sensor area or battery compartment.
7. Solució De Problemes
- Sense pantalla o pantalla tènue: Check battery polarity. Replace the AAA battery if it is low or depleted.
- Lectures inexactes: Ensure the meter is placed in a stable environment, away from direct heat, cold, or strong air currents. Allow sufficient time (at least 30 minutes) for the meter to stabilize to the ambient conditions.
- Display Frozen: If the display appears frozen, the Data Hold function might be active. Press the appropriate button (if available, usually labeled "HOLD") to release it. If no such button, remove and reinsert the battery to reset the unit.
8. Especificacions
| Paràmetre | Valor |
|---|---|
| Gamma d’humitat | 10 a 99% HR |
| Interval de temperatura | De 14 a 140 °F (-10 a 60 °C) |
| Precisió de la humitat | ±5% HR |
| Precisió de la temperatura | ± 1.8 ° F (± 1 ° C) |
| Mostra | Large Digit LCD |
| Font d'alimentació | 1 x piles AAA |
| Dimensions del producte | 3.9" d'amplada x 4.3" d'alçada |
| Pes de l'article | 0.704 unces (0.02 kg) |
| Opcions de muntatge | Suport, muntatge a la paret |
9. Garantia i Suport
The Extech 445703 Big Digit Indoor Humidity & Temperature Meter comes with a 1 anys de garantia des de la data de compra. Aquesta garantia cobreix els defectes de materials i de mà d'obra en ús normal.
For technical support, warranty claims, or service inquiries, please contact Extech customer service directly. Refer to the official Extech weblloc web o l'embalatge del producte per obtenir la informació de contacte més actualitzada.
