High-Accuracy Temperature & Humidity Data Logger


Monitor the environment you live and work in with the EasyLog EL-SIE-2+. Advanced onboard software means there is nothing to install on your PC or Mac – simply connect the logger with a USB cable and use your web browser to configure the device and view, analyze and download your data. It really couldn’t be easier.

The bright and clear display shows current readings and device status at a glance, and the product is supplied with a bracket for secure wall mounting. EL-SIE-2+ uses standard AAA batteries and typical battery life is over 1 year.

The EL-SIE-2+ is a high-accuracy model version and measures temperature and relative humidity. Other models that measure temperature only, or temperature, humidity, and pressure, are available. Standard and high accuracy versions of these are also available. Key markets include facilities and building management, logistics, warehouses and storage, and clean rooms and other pressure-sensitive environments.

Recorded data can be downloaded to your computer, or uploaded to an EasyLog Cloud account for secure storage and powerful analysis.

Translations of the EL-SIE-2+ datasheet can be found in the resources tab.


Measurement Range (T) -18 to +55°C (-0.4 to +131°F)
Accuracy ±0.2°C (±0.36°F)
Measurement Range (RH) 0 to 100%RH
Accuracy ±1.5% typical (0 to 80%RH)
Logging Rate 10 seconds to 24 hours, user selectable
Start Modes Immediate, push-to-start, delayed start, parameter triggered
Memory Capacity 1,000,000 total readings, >500,000 readings per channel
Sounder Integrated alarm sounder
Power Source 2 x AAA 1.5V battery
Battery Life >1 year (at 25°C with 10 minute logging rate)
Dimensions 93 x 42 x 17 mm (excluding bracket)
Operating Temperature Range -18 to +55°C (-0.4 to +131°F)
Environmental Rating IP2X

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