COMET U0122 – Dual-Channel Temperature Data Logger with Internal Sensor + External Pt1000 Probe

COMET U0122 – robust dual-channel temperature data logger with internal sensor (-30 to +70 °C ±0.4 °C) + external Pt1000 probe (-90 to +260 °C ±0.2 °C) 

The COMET U0122 is a robust dual-channel temperature data logger featuring an internal temperature sensor and an external Pt1000 input – the ideal solution for precise long-term monitoring and documentation in cold chains, warehouses, climate chambers, cold rooms, transport, pharmaceutical production, food industry, or anywhere temperature needs to be recorded both internally and externally at critical points. With a large memory of 500,000 values (non-cyclic) or 350,000 values (cyclic), a freely adjustable logging interval (10 s to 24 h), and a traceable calibration certificate (EN ISO/IEC 17025), it is perfectly suited for quality management, audits, and temperature mapping.

The internal sensor measures from -30 to +70 °C (±0.4 °C), while the external Pt1000 input covers -90 to +260 °C (±0.2 °C from -50 to +100 °C, ±0.2% of the reading above that, ±0.4% from -90 to -50 °C). The acoustic and visual alarm (buzzer + LED) provides immediate warning when user-defined limits are exceeded. Min/Max values are stored automatically. The backlit LCD displays both channels simultaneously. The logger operates autonomously on a 3.6 V lithium AA battery – offering a lifetime of several years depending on interval settings. No external power supply is required – ideal for mobile and fixed applications in harsh environments. Recording modes: non-cyclic (stops when memory is full) or cyclic (overwrites oldest data). Real-time clock with date/time. Data transfer to PC via USB-C (COMET Vision software).

The data logger is maintenance-free, long-term stable, and comes with a 3-year warranty. The included traceable calibration certificate guarantees highest measurement accuracy from the factory. Intuitive operation via buttons and clear menu navigation. Whether used as an autonomous logger in cold chain monitoring, as a mobile tester during transport, or as an integrated component in production – the U0122 impresses with precision, robustness (IP67), and ease of use. The dual-channel function enables comparison measurements (e.g. ambient vs. product).

Why the COMET U0122 is the best dual-channel Pt1000 data logger:

• Dual-channel – simultaneous internal + external Pt1000 measurement
• Wide measuring range – external -90 to +260 °C (±0.2 °C in the core range)
• 500,000 value memory – non-cyclic or cyclic
• Recording interval freely adjustable – 10 s to 24 h
• Acoustic & visual alarm – immediate warning on limit exceedance
• Min/Max memory – extreme values per channel
• Backlit LCD – both channels displayed simultaneously
• Traceable calibration certificate included – EN ISO/IEC 17025
• Battery-powered operation – lithium AA, lifetime several years
• IP67 protection – dustproof and waterproof for harsh environments
• 3-year warranty – guaranteed COMET quality

Technical data U0122:

• Temperature internal: -30 to +70 °C (±0.4 °C)
• Temperature external (Pt1000): -90 to +260 °C (±0.2 °C from -50 to +100 °C / ±0.2% above / ±0.4% from -90 to -50 °C)
• Resolution: 0.1 °C
• Channels: 1× internal + 1× external Pt1000
• Memory: 500,000 values (non-cyclic) / 350,000 values (cyclic)
• Recording interval: 10 s to 24 h
• Measurement interval / display update: adjustable 1 s, 10 s, 1 min
• Alarm: acoustic (buzzer) + visual (LED) for limit exceedance
• Display: backlit LCD
• Power supply: lithium battery 3.6 V AA
• Operating temperature: -30 to +70 °C
• Protection rating: IP67
• Dimensions: 61 × 93 × 32 mm
• Weight (incl. battery): approx. 120 g
• Warranty: 3 years

Perfectly suited for:

• Cold chain and transport monitoring
• Warehouse and cold room supervision
• Pharmaceutical and food production
• Climate chambers and incubators
• Product vs. ambient temperature (dual-channel)
• Quality management & audits
• Autonomous long-term logging without mains connection
• Mobile inspection and service

Installation and operation – done in minutes

Connect the external Pt1000 probe, insert the battery – ready! Set intervals and limits, start logging – read data easily via USB-C. The backlit display and the acoustic/visual alarm ensure safe and convenient operation. Calibration certificate included – ideal for audits and quality management.

Summary:

• The data logger is designed for temperature recording using one external Pt1000 probe and one internal temperature sensor
• Recording is stored in non-volatile electronic memory
• Data can be transferred to a PC via USB-C
• When set limits are exceeded, alarms are shown via LED, LCD, and acoustic buzzer
• The device comes with a traceable calibration certificate

Scope of delivery:

• U0122
• User manual
• Traceable calibration certificate
• 1× lithium battery 3.6 V
• Free full version of COMET Vision analysis software
• External sensors and USB cable not included