"hobo data logger"

The HOBO MX2501 pH and Temperature Data Logger is designed for long-term monitoring of pH in estuaries, lakes, streams, rivers, and oceans.

Bluetooth logger with external sensor.

This precision, self-contained data logger is ideal for measuring concentrations of oxygen in lakes, streams, rivers, estuaries, and coastal waters.

Combining high accuracy water level measurements with out-of-the-box convenience, this money-saving kit includes everything needed to start logging right away. It is ideal for monitoring water levels and temperatures in wells, streams, lakes, freshwater wetlands and tidal areas.

A low-cost, research-grade data logger with Bluetooth data offload to continuously monitor water level and temperature. Measures at depths of up to 13, 30 or 100 feet in a wide range of underwater environments, both freshwater and saltwater.

Wireless setup and download via bluetooth technology. Lowers the cost of field data collection by providing wireless access to high-accuracy water level and temperature data.

The Universal Optic USB Base Station and couplers are used to offload data from any HOBO® data logger with an Optic USB interface.

Onset’s HOBO MX1102 CO₂ logger makes it more convenient than ever to measure and record CO₂ in buildings and other non-condensing environments.

Records state changes, electronic pulses, and mechanical or electrical contact closures from external sensing devices.

The HOBO® waterproof shuttle provides convenient readout and relaunching of underwater and outdoor HOBO data loggers with an Optic USB interface, and is waterproof to 20 m (66'). This shuttle can also be used as a base station.

Monitor energy and industrial equipment with this 15 channel data logger to quickly detect and address issues relating to HVAC, machinery and other systems.

The Temperature/Relative Humidity data logger records temperature and relative humidity (within 3.5% accuracy) in indoor environments with its integrated sensors.

Ideal for monitoring water levels and temperatures in wells, streams, lakes and freshwater wetlands, as well as barometric pressure.

A cost-effective data logger for measuring salinity, conductivity and temperature in saltwater environments with relatively small changes in salinity (±5000 μS/cm).

Measures and records conductivity and temperature in streams, lakes and other freshwater sources. Recommended for monitoring aquifers for saltwater intrusion and road and agricultural run-off.

Current sensor with Self-Describing technology for quick, easy set up.