• Easy-to-read LCD screen displays humidity, temperature, date, and time
• Storage capacity of up to 24,000 recorded data sets with time/date stamp
• Selectable data sampling rate
• Program high/low limits from the meter or a PC
• Audible and visual alarms 

The Extech 42280A-NIST is a wall mount, tripod mount, or desktop temperature and humidity data logger designed to continuously monitor temperature and humidity so you can maintain ideal storage and/or comfort conditions in indoor facilities including laboratories, cleanrooms, hospitals, and other indoor working facilities. It comes complete with a USB-A to USB-A cable and four 1.5V AA batteries. This version includes a certificate of calibration traceable to NIST.

The 42280A-NIST offers max/min mode and records up to 24,000 data sets including date and time stamps. It features both audible and visible alarms for condition monitoring. Generate PDF reports that show trending graphs or export data to a Microsoft Excel spreadsheet, making it easy to identify irregularities in temperamental environments.

Continuously Monitor Temperature and Humidity

Simultaneously monitor temperature and humidity on the LCD screen. Audible and visible alarms will alert you when temperature or humidity has exceeded or dropped below indicated set points.

Easily Identify Problems

The easy-to-read LCD screen simultaneously displays humidity, temperature, date, and time.