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HOBO® Two External Temperature
The HOBO MX2303 features two 2 m external temperature sensors.
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HOBO Pendant® MX Temperature and Light Datalogger
The HOBO MX2202 waterproof temperature/light level logger leverages the power of Bluetooth Low Energy (BLE) to deliver accurate temperature and light-level measurements straight to your iOS or Android mobile device.
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Accessories for HOBO State Data Logger
Expands the measurement capabilities of a HOBO State Data Logger by enabling reliable monitoring of electrical current and equipment operation without interrupting existing systems.
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Accessories for HOBO® 4-Channel Analog Data Logger
Provides a selection of compatible sensors and connector accessories that enable reliable external measurements with the HOBO 4-channel analog data logger.
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Optic USB Base Station
The Universal Optic USB Base Station and couplers are used to offload data from any HOBO® data logger with an Optic USB interface.
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HOBO Water Level Data Logger Deluxe Kit, 100'
High accuracy water level measurements, this kit includes everything to start logging. Monitoring water levels, temperatures in wells, streams, lakes and freshwater wetlands, along with barometric pressure.
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HOBO® Water Level Data Logger Deluxe Kit, 13', Onset
High accuracy water level measurements, this kit includes everything to start logging. Monitoring water levels, temperatures in wells, streams, lakes and freshwater wetlands, along with barometric pressure.
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HOBO® Water Level Data Logger Starter Kit, 13'
Combining high accuracy water level measurements, this kit includes everything needed to start logging. It is ideal for monitoring water levels and temperatures in wells, streams, lakes and freshwater wetlands.
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Temp/RH/PAR Data Logger
High-precision monitoring of PAR, temperature, and humidity with effortless Bluetooth data offload, ideal for monitoring environmental conditions - from agricultural operations to academic research.
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HOBO® Data Loggers Self-Describing 6' Stainless Steel Temperature Sensor
Stainless steel temperature sensor with Self-Describing technology for quick, easy set up.
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Onset® TidbiT v2 Water Temperature Data Logger
Only 3×4 cm, this tiny data logger measures temperatures over a wide temperature range.
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Underwater PAR Data Logger
Delivers highest-accuracy measurements of photosynthetically active radiation (PAR), temperature, and tilt for both underwater and above water environments.
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Temp/RH/Solar Data Logger
Research-grade, multiparameter microclimate monitoring solution with effortless Bluetooth data offload that continuously measures global solar radiation, temperature, and humidity. Ideal for agricultural, environmental research, ecology, and energy applications.
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Accessories for HOBO® Bluetooth Low Energy Carbon Dioxide/Temp/RH Data Logger
MX2500 Replacement Electrode, replaces the original pH electrode that ships with the HOBO MX2501 logger. The electrodes should be replaced after six months of use, pH electrodes should always be stored in storage solution when not deployed
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HOBO® Data Loggers Self-Describing Current Transformer Sensor
Current sensor with Self-Describing technology for quick, easy set up.
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Accessories for Single or 4-channel Thermocouple Data Logger
Provides essential thermocouple connector accessories that enable reliable connection and measurement of thermocouple sensors with single- or multi-channel HOBO thermocouple data loggers.




