Air Quality Meters

Extech Instruments

445715 Series Image
  • Max/Min with Reset Function
  • Rear Calibration Adjustment Pot
  • Optional RH Calibration Bottles
  • Accuracy ±4% RH; ±1°C/1.8°F
  • Complete with Built-in Stand, Mounting Bracket, Sensor, and 1 AAA Battery; Optional Calibration Salt Bottles
42270 Series Image
  • Use in Storage Containers, Shipping Vans, Freezers and More
  • Logs Data for Days, Weeks or Months - Up to 1 Year Battery Life
  • Multiple Dataloggers Can Be Programmed and Data Downloaded from One Single Docking Station
  • Programmable Sampling Rate from 1sec to 2hrs Plus Hi/Lo Limits with Alarm Indication
  • Program the Logger, Analyze and Store Data Using Windows 95/98/2000/NT/ME/XP Compatible Software
  • Three Start Methods: Scheduled, Immediate or Magnetic
  • Real Time Clock Stores Data & Time with Data
  • Water Resistant
445702 Series Image
  • Attractive Design for Desktop or Wall Mounting
  • Three LCD Displays of Time, Temperature and Humidity
  • Max/Min Memory with Reset for Temperature and Humidity
  • Switchable °C or °F Temperature Display
  • 12/24 Hour Clock with Alarm Function
  • Complete with Built-in Stand, Wall Mounting Bracket and AAA Battery
445815 Series Image
  • Large, Easy-to-Read Triple LCD Displays % Relative Humidity, Temperature and Dew Point
  • %RH Audible and Visual Alarms, with Adjustable Set Points, Alert when Humidity Exceeds Set Limit
  • Probe Clips onto Meter or Extends on 18" (457mm) Cable
  • Max/Min with Reset Function
  • Rear Calibration Adjustment Pot for Humidity and Temperature
  • Complete with Built-in Stand, Wall Mount Bracket, Remote Sensor and 2 AAA Batteries; Optional Calibration Salt Bottles
CO200 Series Image
  • Checks for Carbon Dioxide (CO2) Concentrations
  • Maintenance Free NDIR (Non-Dispersive Infrared) CO2 Sensor
  • Indoor Air Quality Displayed in ppm with Good (380 to 420ppm), Normal (<1000ppm), Poor (>1000ppm) indication
  • Displays Year, Month, Date, and Time
  • Max/Min CO2 Value Recall Function
  • Automatic Baseline Calibration (minimum CO2 level over 7.5 days) or Manual Calibration in Fresh Air
  • Complete with Universal AC Adaptor
CO250 Series Image
  • Checks for Carbon Dioxide (CO2) Concentrations
  • Calculates Statistical Weighted Averages of TWA (8 Hour Time Weighted Average) and STEL (15 Minute Short Term Exposure Limit)
  • Maintenance Free NDIR (Non-Dispersive Infrared) CO2 Sensor
  • User Programmable Audible Alarm
  • Backlit Triple LCD Display
  • Built-in RS-232 Interface for Capturing Readings on PC
  • Data Acquisition Software and Cable Included to Record and Document CO2, Humidity and Temperature Data
  • Optional 33% and 75% RH Calibration Bottles
  • Complete with Software and Cable, 4 AA Batteries, and Carrying Case
EA20 Series Image
  • Compact and Rugged Design Features Large Display and Bargraph
  • Display any Two Parameters (Temperature and Humidity or Dew Point, or Wet Bulb) Simultaneously
  • Min/Max Function Stores & Recalls Highest and Lowest Readings
  • Timer Function Displays the Elapsed Time (mins : secs and day : hour)
  • Programmable Auto Power Off Time Frame
  • Remote Capacitance Sensor with 39" (1m) Coiled Cable
  • Switchable °C/°F Temperature Units
  • Data Hold Function Freezes Reading on Display
  • Auto Power Off to Save Battery Life
  • Low Battery and Overrange Indication
  • Complete with Built-in Stand, Protective Holster, Probe and 6 AAA Batteries
HW30 Series Image
  • Programmable Heat Index Alarm
  • Displays Temperature, Humidity, and Heat Index
  • Calendar Mode Displays Day, Date and Time
  • Stopwatch/Chronograph Mode with 1/100 Second Resolution
  • Fastest/Slowest/Average Lap Recall
  • 99 Lap Counter with 30 Lap/Split Memory
  • 10 Hour Countdown Timer with Audible Beeper Warning for the Last 5 Seconds
  • 12 or 24 Hour Clock Operation
  • Complete with 39" (1m) Lanyard and one 3V CR2032 Battery
RHT20 Series Image
  • Records up to 16,000 Readings for Each Parameter
  • USB Interface for Easy Setup and Data Download
  • Selectable Data Sampling Rate: 1 Second to 24 Hours
  • User-Programmable Alarm Thresholds for RH and Temperature
  • LCD Displays Current Readings, Min/Max, and Alarm Status
  • Complete with 3.6V Lithium Battery, Mounting Bracket with Combination Lock, and Windows 2000, XP, and Vista Compatible Analysis Software
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