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With a built-in display and data logger, the ACR-205 provides the user with a reliable and accurate method of evaluating indoor air quality by measuring and recording temperature, relativ humidity,carbon dioxide, and one or two other gases at the same time. These other gases can include: carbon monoxide (CO), nitrogen dioxide (NO2), oxygen (O2), ammonia (NH3), chlorine (CI2), chlorine diocide (CIO2), fluorine (F2), hydrogen (H), hydrogen chloride (HCI), hydrogen cyanide (HCN), hydrogen sulphine H2S), nitric oxide (NO), ozone O3), or sulphur dioxide (SO2).

Product Specifications

• Size: 214 mm x 152 mm x 55 mm (8.44" x 6.0" x 2.18")
• Weight: 1.32 kg (2.91 ib)
• Case Material: Powder painted aluminium
• Mounting: Handheld, desk for wall mount
• Operating Limits: 0 to 50ºC (32 to 122ºF) and 0 to 100% RH /non-condensing)
• Clock Accuracy: +/- 2 seconds per day
• Battery (in logger): 3.6 volt Lithium
• Battery (in monitor): Intergral sealed lead acid
• Memory Size: 128 KB (87,000 readings)
• Sampling Methodes:
• 1. Continuous (First-in, First-out)
• 2. Stop when full (Fill-then-stop)
• Sampling Rates: User selectable from 8 seconds to once eyery 8 hours
• Resolution: 12-bit (1 part in 4096)
• PC Requirement: IBM PC or 100% compatible running Windows®3.1, ´95, `98, 2000, Me, NT or XP with at least 2 MB RAM, 2 MB of hard drive disk space and one free serial port
• Software requirements: TrendReader® Standard (included )
• Accessories: Carrying case and interface cable (included)

Sensor Specification

• Temperature Sensor:
• Type: NTC Thermistor
• Range: 0 to 50ºC (32 to 122ºF)
• Accuracy: +/- 0.5ºC (+/- 0.9ºF @ 77ºF)
• Realative Humidity Sensor:
• Type: Thin film capacitance
• Range: 0 to 100% RH
• Accuracy: +/- 2% RH
• Co2 Sensor:
• Type: NDIR
• Range: 0 to 5,000 ppm /standard)
• Accuracy: +/- 20 ppm (typical)
• Co Sensor:
• Type: Electrochemical
• Range: 0 to 50 ppm
• Accuracy: <2% per month in clean air
• NO2 Sensor:
• Type: Eletrochemicl
• Range: 0 to 5 ppm
• Accuracy: <3% @ 3 months
• Other Gas Sensors (Range Resolution):
• O2 (0-25.0% Volume, 0.2% Wolume)
• NH3 (0 - 5.0 ppm, 1 ppm)
• CI2 (0 -5 .0 ppm, 0.02 ppm)
• CIO2 (0 - 1.0 ppm, 0.02 ppm)
• F2 (0 - 1.0 ppm, 0.02 ppm)
• H2 (0 - 4000 ppm, <20 ppm)
• HCI (0 - 30 ppm, 0.5 ppm)
• HCN (0 - 30 ppm, 0.3 ppm)
• H2S (0 - 50 ppm, 0.05 ppm)
• NO (0 - 100 ppm, 0.1 ppm)
• O3 ( 0 - 1.00 ppm, 0.02 ppm)
• ÜSO3 (0 - 20 ppm, 0.1 ppm)