Frigga M2H Temperature and Humidity Data Logger

The Frigga M2H is a reusable temperature and humidity logger that records temperature and relative humidity from -30 to +70°C. Frigga specifies the M2H at ±0.5°C (-20 to +40°C), ±1°C otherwise accuracy with 0.1°C resolution. On the M2H, humidity is measured from 5 to 95 %RH at ±3 %RH (20 to 80 %RH), ±5 %RH otherwise. Down to -30°C, the M2H covers 2–8°C fridges as well as -20°C freezers.

Memory holds 28,800 readings at a 10 min standard (configurable via tool) interval, about 200 days of logging at 10-minute steps. Frigga lists the maximum runtime of the M2H as 100 days (10 min interval). Recording on the M2H starts by button, time start and temperature start. Data from the M2H comes off over USB 2.0 with PDF and CSV reports.

Physically, the M2H has LCD display, IP64 protection and a replaceable battery. Unstarted M2H units have a shelf life of 24 months. Listed approvals for the M2H: CE, RTCA DO-160G, UN38.3, RoHS, WEEE and EN 12830. For calibration, the M2H comes with: validation certificate: softcopy in device memory. In practice the Frigga M2H fits storage areas where humidity affects quality, 2–8°C or frozen.