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Zenith Sales & Calibrations Pty Ltd

5-in-1 Environmental Meter

5-in-1 Environmental Meter

Regular price $456.50 AUD
Regular price Sale price $456.50 AUD
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  • Large LCD display with backlight
  • MAX, MIN and AVG measurements
  • K-Type Temperature -200°C to 1375°C
  • Air Temperature -30°C to 99.9°C
  • Relative Humidity 5% – 98%
  • Sound Level Range 130dB
  • Lux Level Range 20000 Lux
  • Air Velocity to 30m/s; 108 km/h; 5900 ft/min; 67 mph & 58 knots
  • 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


The MT941 5-in-1 Environmental 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. 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.

This Environmental Meter is carried in a hard plastic carrying case for convenience and protection.


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


Hard Plastic Carrying Case
MT690 K-Type Probe Kit
Instruction Manual