1. Танилцуулга
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. Онцлогууд
- 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. Багцын агуулга
Бүх зүйл байгаа бөгөөд сайн нөхцөлд байгаа эсэхийг шалгана уу:
- Extech 445703 Big Digit Hygro-Thermometer
- Нэгдсэн лангуу
- Ханын бэхэлгээ
- One (1) AAA Battery
4. Тохиргоо
4.1. Зай суурилуулах
- Төхөөрөмжийн арын хэсэгт зайны тасалгааны тагийг олоорой.
- Тагийг нь нээнэ үү.
- Insert one (1) AAA battery, observing the correct polarity (+ and -) as indicated inside the compartment.
- Зайны тасалгааны тагийг найдвартай солино.
4.2. Байрлуулах
- Ширээний хэрэглээ: Extend the integrated stand from the back of the unit to place it on a flat surface.
- Хананд суурилуулах: 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. Ашиглалтын заавар
5.1. Дэлгэц Overview
The large LCD simultaneously shows the current temperature (top display) and relative humidity (bottom display). The unit automatically begins measuring upon battery installation.
- Температурын дэлгэц: Shows the current ambient temperature in either Fahrenheit (°F) or Celsius (°C).
- Чийгийн дэлгэц: Shows the current relative humidity in percentage (%).
5.2. Температурын нэгжийн сонголт
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.
- дээр дарна уу MAX/MIN button once to display the maximum recorded temperature and humidity. The "MAX" indicator will appear on the display.
- дээр дарна уу MAX/MIN button a second time to display the minimum recorded temperature and humidity. The "MIN" indicator will appear on the display.
- дээр дарна уу 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:
- байхад 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. Засвар үйлчилгээ
6.1. Зай солих
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. Цэвэрлэгээ
Тоолуурын тоолуурыг цэвэрлэasing зөөлөн, damp cloth. Do not use abrasive cleaners or solvents. Ensure no moisture enters the sensor area or battery compartment.
7. Алдаа засах
- Дэлгэц байхгүй эсвэл бүдгэрсэн дэлгэц: Check battery polarity. Replace the AAA battery if it is low or depleted.
- Буруу уншилтууд: 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. Техникийн үзүүлэлтүүд
| Параметр | Үнэ цэнэ |
|---|---|
| Чийглэгийн хүрээ | 10-аас 99% RH |
| Температурын хүрээ | 14-140°F (-10-60°C) |
| Чийгийн нарийвчлал | ±5% RH |
| Температурын нарийвчлал | ± 1.8 ° F (± 1 ° C) |
| Дэлгэц | Large Digit LCD |
| Эрчим хүчний эх үүсвэр | 1 x AAA батерей |
| Бүтээгдэхүүний хэмжээс | 3.9" W x 4.3" H |
| Зүйлийн жин | 0.704 унц (0.02 кг) |
| Суурилуулах сонголтууд | Зогсоол, хананд бэхэлгээ |
9. Баталгаат хугацаа ба дэмжлэг
The Extech 445703 Big Digit Indoor Humidity & Temperature Meter comes with a 1 жилийн баталгаат хугацаа худалдан авсан өдрөөс. Энэхүү баталгаа нь ердийн ашиглалтын үед хийгдсэн материал, хийцийн согогийг хамарна.
For technical support, warranty claims, or service inquiries, please contact Extech customer service directly. Refer to the official Extech webхамгийн сүүлийн үеийн холбоо барих мэдээллийг сайт эсвэл бүтээгдэхүүний сав баглаа боодол.
