WatchDog B-Series Button Loggers Spectrum Technologies Categories Environment , Portable Environmental Meter Brochure Send Enquiry Overview Specifications Water resistant (IP56) stainless steel case Select measurement intervals from 1 to 120 minutes Log 2,000 to 8,000 intervals Internal sensors Integral non-replaceable battery Choose from temperature-only or temperature/humidity models Back Our Related Products Campbell Scientific CSIM11-L pH Probe Learn More Gill Instruments WindObserver 65 Learn More Campbell Scientific CS 41003-5 10-Plate Solar Radiation Shield Learn More Campbell Scientific KH20 Krypton Hygrometer with Case Learn More