What certifications does the MSF sensor have?

The sensor is certified for use in the UK and Europe (CE Marked). For hazardous locations the sensor is both ATEX and IECEx gas certified: Zone 0 which includes Zone 1 Gas Group B and Zone 2 Gas Group C.

ATEX Markings:

II Ex ia IIB T4 Ga (-20 <= Ta <= +60)

Zones 0, 1, 2 Gas group B
II Ex ic IIC T4 Gc (-20 <= Ta <= +60)
Zone 2 Gas Group C

IECEx Markings:
Ex ia IIB T4 Ga (-20 <= Ta <= +60) Zones 0, 1, 2 Gas group B
Ex ic IIC T4 Gc (-20 <= Ta <= +60) Zones 2 Gas group C
Wireless certification FCC ID S9NSPBT30DP2 and VPYLBZY Wireless certification  IC 8976C-PBT302 and 772C-LBZY.