Go Direct* Optical Dissolved Oxygen Probe, with Micro USB Cable, Range: 0 to 20 mg/L, 0 to 300%, Measure primary productivity or biological/biochemical oxygen demand, Explore the interdependence of plants and animals, Monitor watersheds over time
HOBO* Dissolved Oxygen Data Logger, Measure oxygen concentrations in lakes, streams, rivers, estuaries, and coastal waters, Oxygen Accuracy: +/-0.2 mg/L up to 8 mg/L, Temperature Accuracy: 0.2 Deg C, Depth Rating: 100 m
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: 4 m
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* Water Level Data Logger, titanium, No-vent-tube design for easy and reliable deployment, Ideal for recording water levels and temperatures in wells, streams, lakes, wetlands and tidal estuaries, 3-point NIST, 250 Foot Depth
HOBOnet Wireless Temperature Sensor, provides a cost-effective and scalable solution for web-enabled monitoring of air, soil, water temperatures, Measurement range of -40 deg to 100 deg C (-40 deg to 212 deg F), Stainless-steel sensor tip, 900 MHz wireless
TidbiT v2 Water Temperature Data Logger, provides 12-bit resolution and has +/- 0.2 Deg C accuracy, Onset's smallest temperature data logger, Waterproof to 300 meters (1,000 feet), designed for outdoor and underwater environments
HOBO* Temperature Data Logger, Food-grade 316 Series Stainless Steel, High-accuracy, extended temperature range, Suitable for high pressure applications to 2200psi, Fast readout via direct USB interface, Depth Rating: 4900 Feet
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: 76 m
HOBO* Pendant* Event Data Logger, Ideal for recording rainfall with tipping-bucket rain gauges, Records tips or momentary contact closures and temperature, Stores over 16,000 tips (160 in. Of rainfall with a 0.01 in. Rain gauge), Memory: 64K bytes
HOBO* Water Level Data Logger, stainless steel, No-vent-tube design for easy and reliable deployment, Ideal for recording water levels and temperatures in wells, streams, lakes, wetlands and tidal estuaries, 30-Foot Depth
HOBO* pH and Temperature Data Logger with Bluetooth Low Energy, Designed for long-term monitoring of pH in aquatic systems, can be deployed in both fresh and saltwater environments, Accuracy of +/-0.10 pH units within +/-10 DEG C of temperature
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