"hobo data logger"

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

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.

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

The HOBO MX2305 features an internal temperature sensor.

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

The HOBO MX2201 waterproof temperature logger leverages the power of Bluetooth Low Energy (BLE) to deliver accurate temperature measurements straight to your iOS or Android mobile device.

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 MX2203 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.

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

A high-accuracy, easy-to-deploy data logger that measures and records the power and energy consumption of 120 V plug loads from office equipment, vending machines, and other devices.