Major Tech MT941 5-in-1 Environmental Meter

$412.50 inc. GST

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

SKU: MT941 Category:
Major Tech


The 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, home, etc, checking acoustics of studios, auditoriums and hi-fi installations. 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.


Major Tech

Major Tech (Pty) Ltd was established in 1992, with a vision and mission of being the brand of choice, by consistently pushing the benchmark with innovative, high quality product developments, providing unparalleled service excellence and exceeding all expectations. The founder of Major Tech, comes with a vast knowledge and over 30 years of hands-on experience in the electrical industry and is the driving force behind the vision of the company. Being a values-based organisation, every decision and undertaking is underpinned by their core values.

Major Tech

Additional information

Weight .8 kg
Dimensions 30 × 20 × 10 mm


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