EVM Monitors

EVM Particulate and Indoor Air Quality Monitors

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  • Features
  • Specifications
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The EVM Series of 3M™ Monitors, monitor both particulates and air quality in one compact instrument. This durable, easy to use model provides simultaneous worksite area monitoring of:
  • Particulate mass concentrations (0.1-10 um)
  • Select volatile organic compounds
  • Temperature
  • Relative humidity
  • Carbon dioxide
  • Select toxic gases
  • Air velocity (with purchase of optional accessory)
EVM-7 Particulate & Air Monitor
  • Simultaneous measurement of particulate and gas concentrations
  • Dial-in rotary impactor
  • Built-in sampling pump for gravimetric analysis
  • External temperature and relative humidity sensor helps ensure accurate readings
EVM-4 Indoor Air Monitor
  • Multi-sensor instrument designed for indoor air quality investigations.
  • Toxic Gas (choose from nine sensors)
  • Relative Humidity
  • Carbon Dioxide
  • Temperature air exchange rates and dew
EVM-3 Particulate Monitor
Specialises in real-time direct reading of particulate concentrations. EVM-3 measures:
  • Particulates (mass concentration)
  • Temperature
  • Relative Humidity
General Display Languages
Chinese, Czech, English, French, German, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Russian, Spanish, Swedish, and Turkish
  User Interface 10 push buttons and 4 softkeys, menu driven
  Display Type
Transreflective 128 X 64 LCD with backlighting
Software Compatibility: 3M™ Detection Management Software DMS
  Standards CE Mark and RoHS compliant
  Particulate Impactors
PM2.5, PM4, PM10 or TSP (within the
Size Fractions: instrument’s measurement range)
  Flow Rate 1.67 L/min
Displayed Data Measurements
Level, Minimum, Maximum, Average, Short-Term
Exposure Level (STEL), Time Weighted Average
  Real-Time Measurement Once per second display update rate
  Time History Data Seconds: 1, 5, 15, 30 / Minutes: 1, 5, 10,
  Logging Intervals 15, 30, 60
  Trend Graphing Intervals Minutes for All Parameters 1.5, 3, 15 / Hours: 1.5, 3, 8, 12, 24
  Status Indicators Battery, Run, Stop, Overload and Under Range
  Averaging Time 1 to 30 seconds
Physical Characteristics Size 19 cm X 19 cm X 7 cm (7.5" X 7.5" X 2.75")
  Weight 1.3kg
  Housing Static dissipative ABS Polycarbonate housing
  Tripod Mount Standard photographic mount on bottom, 1/4" - 20 screw heads
Operating Conditions Temperature Range 0 °C to 50 °C (32 °F - 122 °F)
  Pressure Range 65 kPa to 108 kPa
  Relative Humidity Range 10% to 90% non-condensing
Storage Conditions Temperature -20 °C to 60 °C (-4 °F to 140 °F)
  Humidity 0% to 95% RH, non-condensing
Electrical Characteristics Intelligent Sensors Auto-detectable when inserted at power-off mode
  Battery Pack Rechargeable lithium-ion
  Battery Life Minimum of 8 hours under continuous operation
  External DC Power Input 10 to 16 Volt power inlet (nominal 12V DC) 1.5A
  Power Adapter Universal AC adapter 100 to 240 Volt AC, 50-60 Hz


Particle Counter use has expanded from the semiconductor industry to monitoring critical environments in the pharmaceutical, food processing, and electronics industries. Following are general applications for particle counters.
  • Cleanroom verification/monitoring
  • IAQ investigations
  • Clean bench verification
  • Food process investigations
  • Hospital surgical room monitoring
  • Filter testing
  • Nanoparticle exposure evaluation
  • Worksite monitoring
  • Industrial hygiene surveys
  • Military site evaluation
  • Aircraft and train environment sampling
  • Construction/mining site monitoring
  • Engineering studies
  • Industrial fenceline monitoring
  • Remediation sampling
  • IAQ walk-through and stationary studies
  • Air quality assessment
  • VOC screening and monitoring
  • Regulatory compliance