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Description
MAJ MT9415 in 1 Multifuction Digital Environment Multimeter Environment Meter Overview The MT941 5 in 1 digital Multifunction Environment Meter has been designed to combine the functions of a Sound Level Meter, Light Meter, Humidity Meter, Temperature Meter and CFM CMM Thermo Anemometer. It is an ideal Multifunction Environment Meter with scores of practical applications for professional and home use. The Sound level function can be used to measure noise in
5-in-1 Multifuction Digital Environment Multimeter
Environment Meter
Overview
The MT941 5-in-1 digital Multifunction Environment Meter has been designed to combine the functions of a Sound Level Meter, Light Meter, Humidity Meter, Temperature Meter and CFM/CMM Thermo-Anemometer. It is an ideal Multifunction Environment Meter with scores of practical applications for professional and home use. The Sound level function can be used to measure noise in factories, schools, offices, homes, checking acoustics of studios, auditoriums and hi-fi installations, etc . The Light function is used to measure luminance in the field. It is fully cosine corrected for the angular incidence of light. The light sensitive component used in the meter is a very stable, long life, silicon diode. The Humidity/Temperature uses a humidity/semiconductor sensor and K-type thermocouple. CFM/CMM Thermo-Anemometer is suitable for use in a wide variety of applications, including plant maintenance operations, environmental analysis, fume hood testing, and HVAC system assessments.
Features
- Large LCD display with backlight
- MAX, MIN and AVG measurements
- Display shows Sound, Light, K-Type Temperature, Humidity & Temperature as well as Air Velocity & Air Flow
- Electronic Offset function allows compensation of thermocouple errors to maximize overall accuracy
- The device measures air velocity, it features 5 selectable units of velocity measure: m/s, ft/min, km/h, MPH, knots, and it features 2 selectable units of flow measure: CFM, CMM
- Easy to set Area dimension (up to 6 points) for air flow measurement
- USB interface, USB to UART Bridge Controller
- Low battery indication, Auto Power Off (Sleep mode) adjustable
- Data Logging
Specifications
| Function | Range | Resolution | Accuracy |
| Temperature K-type | -200°C – 1375°C | 0.1°C | ±(1.5°C + 2 Digits) |
| Air Temperature | -30°C – 99.9°C | 0.1°C | ±(1°C + 2 Digits) |
| Relative humidity | 5- 98%RH | 0.1RH | ±(3.5% RH) |
| Sound level range | 30dB – 130dB | 0.1dB | ±(3.5dB at 94dB, 1kHz sine wave) |
| Lux level range | 20 – 20000Lux | 0.1Lux | ±(5 + 10 Digits) |
| Air velocity m/s | 0.40 – 30m/s | 0.01m/s | ±(3% + 0.20m/s) |
| Air velocity km/h | 3.6 – 108.0 km/h | 0.1km/h | ±(3% + 0.8km/hr) |
| Air velocity ft/min | 196 – 5900 ft/min | 1ft/min | ±(3% + 40ft/min) |
| Air velocity mph | 2.2 – 67.00 mph | 0.1 mph | ±(3% + 0.4mph) |
| Air velocity knots | 1.9 – 58.0 knots | 0.1 knots | ±(3% + 0.4knots) |
| Air flow Cubic m/min | 0 – 999900CMM | 0.001 – 100 | Accuracy is a function of velocity and area |
| Air flow Cubic ft/min | 0 – 999900CFM | 0.001 – 100 | Accuracy is a function of velocity and area |
| Digital Display | Large LCD Display | ||
| PC Interface | USB, USB to UART Bridge Controller | ||
| Min Max | Yes | ||
| Data Hold | Yes | ||
| Back Light | Yes | ||
| Enclosure | Over Moulded Casing | ||
| Low battery indication | Yes | ||
| Battery | 9V | ||
| Weight | 365g | ||
| Dimensions | 248 x 65 x 45mm | ||
| Safety Specs | IEC61326 | ||
Downloads
Additional Information
| Device | Environment Meter |
| Type | Digital |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
new perspective
Format: Hardcover
The knowledge of this author is priceless ! He writes in a simple form and breaks down the secret of relating to nature in a more rewarding manner. he challenges me to Be still and Know....
THanks George for this priceless addition to my library
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Reviewed in the United States on July 28, 2025
★★★★★ 5
WOnderful book!
Format: Hardcover
I love this book ~ author provides a very intriguing process he has gone through and continues to go through to learn to understand and communicate with animals, particularly the wild ones. Very intriguing with down to earth, practical suggestions for how the reader can do the same. Really wonderful!
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Reviewed in the United States on January 4, 2025
★★★★★ 5
Great trivia, perfect gift for history lovers!
Format: Paperback
Great range of trivia questions! Simple enough to enjoy but challenging enough to have fun. Super fun to read through with a friend or group, we actually used this as part of a game night and had a blast!
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Reviewed in the United States on January 19, 2026
★★★★★ 5
Educational & Interesting Bathroom Reader
Format: Paperback
I bought this for my husband for Christmas given that he loves history. I figured it’d be a hit as a bathroom reader… I was right and it’s become a fixture right next to the toilet paper! He likes that it challenges him to think. Now there’s no need to take his phone into the bathroom!
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Reviewed in the United States on March 25, 2026
★★★★★ 5
Great trivia!
Format: Paperback
This is a great read! Especially for history buffs. Great to get yourself ready for trivia for scholastic bowl! Highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 1, 2026