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The HOBO MX2304 features one 2 m external temperature sensor.

This data logger measures and transmits temperature, relative humidity and light intensity data wirelessly.

The HOBO MX2305 features an internal temperature sensor.

This logger supports up to four external sensors to record parameters like temp, current, etc.

The MX Gateway automatically transmits HOBO MX Bluetooth Low Energy (BLE) logger data to Onset’s cloud-based HOBOlink software.

The HOBO® U20L-02 is a low-cost, research-grade water level data logger for continuously measuring water level and temperature in a wide range of underwater environments.

Onset’s HOBO MX1101 data logger measures and transmits temperature and relative humidity data wirelessly to mobile devices via Bluetooth Low Energy (BLE) technology.

The HOBO® water Level data logger features high accuracy at a great price and ease-of-use, with no cumbersome vent tubes or desiccants to maintain.

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 HOBO MX2302 features external temperature and relative humidity sensors on a 2 m cable.

Rugged and compact, the redesigned HOBO USB Micro Station is a weatherproof data logger for multi-channel monitoring of microclimates.

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

The HOBO MX2204 TidbiT waterproof temperature logger leverages the power of Bluetooth Low Energy (BLE) to deliver high-accuracy temperature measurements straight to your iOS or Android mobile device.

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

Measures rainfall to determine rainfall rates, times and duration for deployment with most standard tipping-bucket rain gauges.

This HOBO Water Temp Pro v2 is durable with 12-bit resolution. Complete with a precision sensor for ±0.2 °C accuracy, this logger measures temperatures between −40 to 70 °C (−40 to 158 °F) in air and up to 50 °C (122 °F) in water.