Indoor air quality monitoring is taken to the next level

Extech’s new 42280A series temperature and humidity data logger, available from Teledyne FLIR, offers several notable enhancements over its highly successful legacy model to provide even higher performance and capability levels in indoor environmental monitoring applications. This latest generation of highly accurate and reliable meter will be an invaluable asset for any company looking to monitor the air quality of their production area, for example.

A direct replacement for the 42280 series, the new series features the same large, triple LCD simultaneously showing temperature, humidity and date/time clock. However, continuous improvement is embedded within its DNA, so the company’s newly developed model introduces several added-value functions, including the ability to produce PDF reports or Excel spreadsheets when plugging the device (via integral USB interface) into a Windows-based PC after data logging.

A further important enhancement is an increase in internal memory to 48,000 points/readings, three times more than the previous model, to suit demands for extended monitoring or monitoring at high-frequency rates. The device also sees the release of a Max/Min mode and the presence of Hi/Lo indication on-screen. Here, the programmable/selectable data sampling rate provides visual and audible alarm indication together with Hi/Lo limits.

Adaptable to nearly any situation, additional options of the new device include a ‘mark’ function that allows users to read out the memory contents beginning from a defined time without reprogramming the log. Data remains secure within the logger and may be password-protected, if required.

There is also a new 42280A-NIST version. This model offers calibration traceable to NIST standards for indoor environments where it is essential to demonstrate accurate and reliable measurements, supported by calibration reports that users can download to a PC.

The meters provide a temperature range from -20C to +70C and a humidity range from 0% to 100%. The devices measure 120.7mm x 88.9mm x 38.1mm and weigh just 163g. Users can select from wall, desktop, or tripod mounts per individual needs. Salt bottles for relative humidity calibration are offered in kit form (33% and 75%) as optional accessories.

The devices are supplied complete with Windows-compatible software, USB cable, universal AC adaptor, four AA batteries, user guide and a two-year warranty for complete peace of mind. The meters are shipped fully tested and calibrated and, with proper usage, will deliver years of reliable service.