The Rotronic CP11 handheld indoor air quality meter is an inexpensive multiple parameter meter that simultaneously measures and records CO2, humidity, and temperature. It also calculates dew point and wet bulb temperature. Equipped with the field-tested ROTRONIC HYGROMER IN-1 humidity sensor, it offers unbeatable value for money. Using the ROTRONIC HW4-Light software that comes with the device, it can be set as required and data can be downloaded, saved, and analyzed.

Specifications: CO2 0-5000ppm (±30ppm ±5% of measured value), humidity 0.1-99.95% RH (<2.5% RH 10-90% RH), temperature -20 to 60°C (±0.3°C). Non-dispersive infrared (NDIR) sensor with automatic baseline correction (ABC). 18,000 data point memory. Features: max/min/average, adjustable audible CO2 alarm, backlit display, adjustable auto power off, mini USB interface, IP30 protection. Ideal for general IAQ monitoring, underground car parks, and leak monitoring in filling plants.