Rugged Temperature USB Data Logger
IMPORTANT: Using standard batteries could result in fire or explosion at higher temperatures






The EL-USB-1PRO Rugged USB Temperature Data Logger is engineered for tough conditions where standard loggers may fail. Designed with a durable, waterproof IP67-rated housing, this logger provides dependable performance in demanding industrial, outdoor, and refrigerated environments.
It measures temperatures from -40°C to +125°C with excellent accuracy and features an extended memory capacity of 43,000 readings—ideal for long-term monitoring applications. The EL-USB-1PRO offers flexible logging intervals and start modes, making it easy to configure to your specific requirements.
The device features built-in high and low alarm thresholds with LED indicators to alert users to temperature breaches. Its direct USB connection enables hassle-free setup and data download using the included Windows-compatible software, allowing users to generate detailed reports and temperature graphs for compliance and analysis.
Key Features
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Wide temperature range of -40°C to +125°C
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Rugged IP67-rated housing for waterproof and dustproof protection
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Stores up to 43,000 temperature readings
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Direct USB plug-in—no cables or readers needed
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Configurable logging intervals and alarm thresholds
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LED indicators for high/low temperature alerts
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Supplied with Windows software for analysis and reporting
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Ideal for use in harsh or demanding environments
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Temperature Range: -40°C to +125°C
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Accuracy: ±0.5°C (-10°C to +40°C), otherwise ±1.0°C
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Resolution: 0.1°C
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Memory Capacity: 43,000 readings
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Logging Interval: Adjustable from 2 seconds to 24 hours
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Start Modes: Immediate, delayed, or push-button start
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Alarm Thresholds: High and low temperature alarms with LED indicators
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Interface: Direct USB 2.0 connection
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Housing: IP67-rated waterproof and dustproof enclosure
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Software: Windows-compatible software included for setup and analysis
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Power Supply: 3.6V lithium battery (user-replaceable)
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Dimensions: 130 x 30 x 25mm
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Weight: 45g
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A calibration service can be purchased for this unit. Once the Service has been performed a certificate of calibration is produced and dispatched with your order. Calibration Services are performed on receipt of your order and as such will delay shipping. Details and options are outlined below.
Traceable Calibration (Logging) Issued at 4 points: -10°C, 5°C, 20°C & 40°C Additional points: From -15°C to 50°C UKAS Calibration (Logging) Issued at 2 points: 20°C & 30°C Additional points: From 10°C to 30°C A UKAS calibration can also be considered traceable. The difference between the two is that UKAS calibrations are carried out under the remit of an ISO/IEC 17025 quality system by a laboratory that has been accredited by UKAS, to ensure the consistency and accuracy of results.
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Harsh environment monitoring
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Cold chain transport and logistics
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Outdoor and field-based data logging
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Pharmaceutical and vaccine temperature tracking
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Industrial freezer and cold store monitoring
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Agricultural and greenhouse climate recording
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