This handheld indoor air quality meter has a non-dispersive infrared (NDIR) sensor measuring CO2, CO2 ventilation rate, temperature & humidity while ensuring long-term stability and durability.  

Providing a large easy-to-read display, internal CO2 alarm buzzer and inbuilt parameters capable of adjusting CO2 reading for altitude changes, this durable meter is suitable for use in most environments.

The unit also offers data logging of up to 50,000 records and fast USB download (under 10 seconds), with easy-to-use PC software perfect for data analysis.

Applications:

• School or Office monitoring

• Indoor air quality survey

• Locate the presence of combustion fumes from vehicles and appliances

Specifications:

CO2: 0 to 9999 PPM (2001 to 999ppm over range), accuracy of ±75 PPM or 8% of reading (0 to 2000ppm)

Humidity: 0 to 100 RH, accuracy of 2.5% at 10% to 90% RH

Temperature: 0°C to 70°C, accuracy of ±1°C at 25°C

Signal Update: every 2 seconds

Warm Up Time: < 2 minutes

Operating Conditions: °C to 50°C (32°F to 122°F), 0 to 90% RH non-condensing

Power Supply: 4 x type ‘AA’ Alkaline batteries

Battery Life: approx 24 hours

External Power Supply: 6V DC 0.5A