HOBO* Pendant Wireless Temperature Data Logger, compact, waterproof, has large memory that stores 96,000 measurements, Ideal for measuring temperature in streams, lakes, oceans, and soil environments, +/- 0.5 deg C (+/-0.9 deg F) accuracy
HOBO* Bluetooth Low Energy Water Level Data Logger, with titanium sensor, Integrated barometric pressure sensor enables direct water level readout, logger and sensor add 0.39 meters to the length of the cable, Size: 9 m
HOBO* Bluetooth Low Energy Water Level Data Logger, for convenient wireless setup and download from mobile devices via Bluetooth Low Energy, consists of a top-end unit and a water level sensor which are sold as a set, plus a direct read cable, Size: 4 m
HOBO* Bluetooth Low Energy Water Level Data Logger, for convenient wireless setup and download from mobile devices via Bluetooth Low Energy, consists of a top-end unit and a water level sensor which are sold as a set, plus a direct read cable, Size: 9 m
HOBO* Pendant* Temperature/Light 64K Data Logger, 64K bytes, two-channel temperature and relative light level data logger, Materials: Polypropylene case; stainless steel screws; Buna-N o-ring, Waterproof housing for wet or underwater use