Product Specifications:
| Item | Digital Hygrometer |
| Accuracy | ±1.8°F, ±1°C, ±5% RH |
| Application | Factories,Greenhouses,Offices |
| Backlit | Yes |
| Case Color | Green, White |
| Case Material | Plastic |
| Depth | 4/5" |
| Digit Height | 1" |
| Digit Size | 1" |
| Digital Display | 2" H x 3 1/2" W 4 Digit Backlit LCD Display 1" Digit Height |
| Display Dimensions | 3-1/10" x 2-2/5" |
| Display Size | 2" H x 3 1/2" W |
| Display Type | LCD |
| Functions | °F/°C Switchable, Low Battery Indication, Max/Min |
| Height | 4.3" |
| Humidity Accuracy | +/-6% |
| Humidity Accuracy | -6% to +6% |
| Humidity Range | 10% to 99% |
| Humidity Resolution | 1% |
| Includes | Aaa Battery, Stand, Wall Mounting Bracket |
| Includes Batteries | Yes |
| Includes Nist-traceable Certificate | No |
| Length | 4.3" |
| Memory | Maximum/Minimum |
| Mounting | Desk, Wall |
| Nsf Rated | No |
| Number Of Digits | 4 |
| Power Source Details | (1) Aaa Battery |
| Primary Scale | Temperature |
| Product Datasheet | extech-445703.pdf |
| Relative Humidity Range | 10% to 99% |
| Resolution | 0.1°F, 0.1°C, 1% rh |
| Scale Type | Digital |
| Secondary Scale | Humidity |
| Temp. Accuracy | -1.8° to +1.8° |
| Temp. Range | +14°F to +140°F |
| Temperature Resolution | 0.1°F, 0.1°C |
| Temperature Scale | Fahrenheit, Celsius |
| Width | 3.9" |
Shipping Info:
| Ship weight (kg) | 0.18 |
| Ship height (cm) | 2.29 |
| Ship length (cm) | 23.62 |
| Ship width (cm) | 13.97 |
| HS code | 9025803500 |
| Country of Origin | CN |
Product Details:
Extech 445703 indoor hygrometer helps homeowners maintain a comfortable and healthy indoor environment by ensuring humidity levels are within an optimal range, preventing mold growth, discomfort and damage to wooden furniture. It is ideal for offices, laboratories and industrial environments.
This big-digit hygrometer can be either mounted on a wall or used on a flat surface due to its built-in stand. It can measure temperature from 14 to 140 degree F (-10 to 60 degree C) and humidity between 10 to 99% RH with an accuracy of 5% RH, 1 degree C and 1.8 degree F (at 0 to 50 degree C / 32 to 122 degree F). Both parameters are measured and displayed at the same time.
In addition to general measurements the Extech 445703 can also carry out MIN/MAX calculations and switch between Celsius and Fahrenheit measurement functions.
Features:
- Extech 445703 indoor hygrometer features a wide humidity range from 10 to 99 percent, ensuring comprehensive monitoring capabilities for various indoor environments.
- It comes with a backlit 4-digit LCD screen, boasting a generous 1-inch digit height for easy and clear readings, even in low-light conditions.
- This hygrometer offers dual temperature scales, allowing users to select their preferred units for temperature measurement.
- It features a max / min function with reset, enabling users to track and review historical temperature and humidity extremes for effective environmental control.
- This hygrometer operates on a single AAA battery, ensuring a portable and hassle-free power source.
- It includes practical accessories, such as a stand and a wall mounting bracket, providing versatility in placement and usage in factories, greenhouses and offices.
Frequently Asked Questions:
Q. Can I switch between Fahrenheit and Celsius with this hygrometer?
A. Yes, it offers the convenience of switching between Fahrenheit and Celsius temperature units, allowing users to choose their preferred scale.
Q. What is the humidity range of this Extech 445703 hygrometer?
A. It has a humidity range of 10 to 99 percent.
Q. What are the differences between analog and digital hygrometers?
A. Analog hygrometers use a dial and a needle, while digital ones display humidity as a numerical value. Digital hygrometers offer accuracy and ease of use over analog hygrometers.
Q. Can a hygrometer help prevent allergies or respiratory issues?
A. Maintaining an appropriate indoor humidity level can reduce allergens like dust mites and mold.
Documentation:
Product Variants
| Product | Model | Mounting | Temp. Range | Relative Humidity Range | Display Type | Display Dimensions | Price | |
|---|---|---|---|---|---|---|---|---|
![]() |
445814 | Desk, Wall | +14°F to +140°F | 10% to 99% | LCD | - | €105.40 | |
![]() |
445815 | Desk, Wall | +14°F to +140°F | 10% to 99% | LCD | - | €134.88 | |
![]() |
445713 | Desk, Wall | +14°F to +140°F | 10% to 99% | LCD | - | €119.04 | |
![]() |
445715 | Desk, Wall | +14°F to +140°F | 10% to 99% | LCD | - | €123.28 | |
![]() |
445715-NIST | Desk, Wall | +14°F to +140°F | 10% to 99% | LCD | - | €515.98 | |
![]() |
RHM15 | Desk, Wall | +14°F to +140°F | 10% to 99% | LCD | 3 13/64" x 2 1/2" | €69.11 |
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