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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
4.7 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Great for creating a workspace
Color: Grey
I needed a room divider that could be easily folded for storing to put behind my chair during my work calls. This works perfectly! Was very easy to put together. Lightweight but sturdy enough that it won’t fall over.
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Reviewed in the United States on February 27, 2026
★★★★★ 2
Base part of it
Color: Black
Even though I kept this it’s very uncomfortable because of the way the base works . They are very long at the bottom and it’s hard to open and close
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Reviewed in the United States on March 15, 2026
★★★★★ 5
Great room separator
Color: Black
The panels are much longer than we expected! We only needed 3 of the 4 proivided. It's slightly flimsy, but holds together nicely. The screwdriver that came with did not fit the screws, but luckily we had a Phillips head. It's very lightweight. It is definitely a good value for the money.
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Reviewed in the United States on February 10, 2026
★★★★★ 1
Never got to try it because it was broken
Color: Black
Came with a broken piece and is taking forever to get a refund…there wasn’t an option for a replacement
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Reviewed in the United States on March 15, 2026
★★★★★ 3
Room divider
Color: Black, Color: Black
It was much simpler than anticipated. I don't think it's very sturdy and it lacks weight, but it's attractive.
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Reviewed in the United States on March 20, 2026