Description: Dual display of Oxygen concentration and Temperature

Features:

• Measures dissolved oxygen, oxygen, plus temperature
• Min/Max/Avg, Data Hold and Auto power off
• Automatic Temperature Compensation
• Super large 1.4" (36mm) LCD display
• Built-in RS-232 PC interface with optional Data Acquisition Software and Datalogger

Description: Faster response measurements to 1000ppm

Features:

• Easy to read 1999 count backlit displays CO levels from 0 to 1000ppm
• 1ppm resolution with ±5% or ±10ppm basic accuracy (whichever is greater)
• Utilizes a stabilized electrochemical gas specific (CO) fast response sensor
• Audible alarm starts at 35ppm
• Backlight for low light conditions

Measures Carbon Dioxide (CO₂), Air Temperature and Humidity

Features:

• Checks for Carbon Dioxide (CO₂) concentrations with Max/Min value recall function
• Maintenance free NDIR (non-dispersive infrared) CO₂ sensor
• Indoor Air Quality displayed in ppm with Good (380 to 420ppm), Normal (<1000ppm), Poor (>1000ppm) indication
• Visible and Audible CO₂ warning alarm with relay output for ventilation control
• Measurement ranges:
  • CO₂: 0 to 9,999ppm
  • Temperature: 14 to 140°F (-10 to 60°C)
  • Humidity: 0.1 to 99.9%RH
• Displays Year, Month, Date, and Time
• Automatic Baseline Calibration (minimum CO₂ level over 7.5 days) or manual calibration in fresh air

Measures Carbon Dioxide (CO₂), Temperature, Humidity, Dew Point, and Wet Bulb

Features:

• 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
• Measurement ranges:
  • CO₂: 0 to 5,000ppm
  • Temperature: -14 to 140°F (-10 to 60°C)
  • Humidity: 0.0 to 99.9%
• 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