Data Loggers
Data loggers automatically record precise measurements even when personnel cannot be present. The portable designs feature internally or externally located sensors that have exceptional sensitivity to record data in any application or environment needed. These electronic instruments have programmable tracking in single or multi-channel options. Enabling reading over long periods of time, the data loggers alert if conditions are abnormal for safety and optimum testing quality through visual or auditory alarms.
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HOBO® Temperature and Relative Humidity Data Logger
The Temperature/Relative Humidity data logger records temperature and relative humidity (within 3.5% accuracy) in indoor environments with its integrated sensors.
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HOBO® Water Level Data Loggers
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.
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HOBO® Water Level 30' Data Logger
The HOBO® U20L-01 is a low-cost, research-grade water level data logger for continuously measuring water level and temperature in a wide range of underwater environments.
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HOBO® Pendant® Temperature/Light Data Logger
This HOBO Pendant® data logger is a miniature, waterproof two-channel temperature and relative light level data logger.
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HOBO® Pendant® Temperature/Alarm Data Loggers
This value-priced HOBO Pendant® temperature/alarm data logger is both miniature and waterproof, making it a sensible monitoring solution for specific temperature monitoring applications.
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HOBO® 4-Channel Analog Data Logger
This logger supports up to four external sensors to record parameters like temp, current, etc.

