Quest Technologies EVM-7 offers the capability to measure and evaluate the quality of air and mass concentration of dust. These range from unacceptable temperature and humidity levels to elevated levels of toxic gases and particulates.

A built-in sampling pump allows the user to measure particulates with a gravimetric filter and send off the removable cassette for laboratory analysis.

Seven Available Measurements:

• Particulates (mass concentration)
• Volatile Organic Compounds (PID)
• Toxic Gas
• Carbon Dioxide (CO2)
• Relative Humidity
• Temperature
• Air Velocity (with optional accessory)

Specifications:
User Interface:	10 pushbuttons and 4 softkeys, menu driven
Display Type:	Transreflective 128 X 64 LCD with optional backlighting
Software Compatibility:	QuestSuite® Professional II
Standards:	CE Mark and RoHS compliant
Displayed Data:
Measurements:	Minimum Level, Maximum, Average, Short-Term Exposure Level (STEL), Time Weighted Average (TWA)
Real-time Measurement:	Once per second display update rate
Time History Data Logging Intervals:
Seconds:	1, 5, 15, 30
Minutes:	1, 5, 10, 15, 30, 60
Trend Graphing Intervals For All Parameters:
Minutes:	1.5, 3, 15
Hours:	1.5, 3, 8, 12, 24
Status Indicators:	Battery, Run, Pause, Stop, Overload and Under Range
Physical Characteristics:
Size:	19 cm X 19 cm X 7 cm (7.5” X 7.5” X 2.75”)
Weight:	1.2 kg (2.6 lb)
Housing:	Static Dissipative ABS Polycarbonate Housing
Tripod Mount:	Standard photographic mount on bottom, 1/4” - 20 screw heads
Operating Conditions:
Temperature Range:	0 to 50°C (32 to 122°C)
Pressure Range:	65 kPa to 108 kPa
Relative Humidity Range:	10% to 90% non-condensing
Storage Conditions:
Temperature:	-20 to 60°C (-4 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