The LogTag UTREL30-WiFi is a dual-channel WiFi data logger for low-temperature applications, designed for accurate and continuous monitoring. Temperature data is automatically uploaded in real time to your LogTag Online account, giving you instant access to both live and historical data — without the need for manual downloads.
With a capacity of 32,000 readings (16,000 per channel), a large and clear LCD display, and built-in audible and visual alarms, this logger is ideal for:
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Cold chain monitoring
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Vaccine storage
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Laboratory applications
The UTREL30-WiFi supports up to two external ST10 probes, making it highly flexible for use in a wide range of monitoring environments.
Key Features
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Measurement range: −90 °C to +40 °C (probe dependent)
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Dual-channel logging: 16,000 readings per channel
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Automatic real-time WiFi upload to LogTag Online
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LCD display with 30-day alarm overview
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Built-in audible and visual alarm indicators
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Compatible with external ST10 probes
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Multifunctional design with long battery life
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Robust IP61 housing (when mounted or hung vertically)
Technical Specifications
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Temperature resolution: 0.1 °C to 0.5 °C, depending on range
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Accuracy: ±0.5 °C to ±1.8 °C, depending on temperature
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Sampling interval: configurable from 30 seconds to 18 hours
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Start options: push button with configurable delay or scheduled date/time
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Connectivity: WiFi 802.11 b/g/n, Bluetooth® v4.2, USB 2.0 / Micro USB
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Dimensions: 141 × 72 × 18 mm
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Weight: 158 g with AAA batteries (134 g without probe)
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Power supply: 5 V via micro-USB or 2 × AAA batteries, with CR2032 LiMnO2 backup battery
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Calibration: factory calibrated using NIST-equivalent equipment, certificate available on request