COMET U0141 – 4-Channel Temperature Data Logger for 4 External Pt1000 Probes

COMET U0141 – robust 4-channel temperature data logger for 4 external Pt1000 probes (−200 to +260 °C ±0.2 °C), 500,000-value memory, acoustic/optical alarm 

The COMET U0141 is a robust and versatile 4-channel temperature data logger for up to four external Pt1000 probes – the ideal solution for precise long-term monitoring and documentation of temperature in cold chains, warehouses, climate chambers, cold rooms, transport, pharmaceutical production, food processing, server rooms, heat treatment systems, or wherever multi-point temperature measurements must be recorded. With a large memory of 500,000 values (non-cyclic) or 350,000 values (cyclic), freely adjustable logging interval (1 s to 24 h) and a traceable calibration certificate (EN ISO/IEC 17025), it is perfect for quality management, audits, temperature mapping, and ISO compliance.

The four external Pt1000 inputs measure temperature from −200 to +260 °C (±0.2 °C from −50 to +100 °C, ±0.2 % of the measured value above that, ±0.4 % from −200 to −50 °C). The acoustic and optical alarm (buzzer + LED) immediately warns when user-defined limits are exceeded. Min/Max values are stored. The backlit LCD display is easy to read, and the measurement/alarm update rate is configurable (1 s, 10 s, 1 min). The logger operates autonomously using a 3.6 V AA lithium battery – battery life is several years depending on the interval. No power supply required – ideal for both fixed and mobile installations. Recording can be either non-cyclic (stops when memory is full) or cyclic (overwrites oldest data). Real-time clock with date/time. Data transfer via USB‑C to PC (COMET Vision software).

The data logger is maintenance‑free, long‑term stable, and comes with a 3‑year warranty. The supplied traceable calibration certificate guarantees maximum measurement accuracy from the factory. Intuitive operation via keypad and clear menu. The robust housing with IP67 protection ensures resistance against dust and splashing water. Whether used as an autonomous logger in production, a portable tester in service, or a permanent component in a monitoring system – the U0141 stands out for its precision, robustness, and ease of use. The four Pt1000 inputs allow multi‑point measurements (e.g. flow/return, multiple products, or zones).

Why the COMET U0141 is the best 4‑channel Pt1000 data logger:

• 4× external Pt1000 input – multi‑point temperature measurement for comprehensive monitoring
• 500,000‑value memory – non‑cyclic or cyclic
• Adjustable logging interval – 1 s to 24 h
• Acoustic & optical alarm – immediate warning when limits are exceeded
• Min/Max memory – extreme values per channel
• Backlit LCD – all four channels visible simultaneously
• Traceable calibration certificate included – EN ISO/IEC 17025
• Battery‑powered operation – 3.6 V lithium AA, life of several years
• IP67 protection – dust and splash resistant
• 3‑year warranty – guaranteed COMET quality

Technical data U0141:

• Temperature external (Pt1000): −200 to +260 °C (±0.2 °C from −50 to +100 °C / ±0.2 % above / ±0.4 % from −200 to −50 °C)
• Resolution: 0.1 °C
• Channels: 4× external temperature probe
• Memory: 500,000 values (non‑cyclic) / 350,000 values (cyclic)
• Logging interval: 1 s to 24 h
• Measurement/alarm update: configurable 1 s, 10 s, 1 min
• Alarm: acoustic (buzzer) + optical (LED) when limits are exceeded
• Display: backlit LCD
• Power supply: 3.6 V AA lithium battery
• Operating temperature: −30 to +70 °C
• Protection rating: IP67
• Dimensions: 61 × 93 × 32 mm
• Weight (incl. battery): approx. 130 g
• Warranty: 3 years

Perfect for:

• Cold‑chain and transport monitoring (multi‑point)
• Warehouse and cold‑room monitoring
• Pharmaceutical and food industry (multi‑zone)
• Climate chambers and incubators
• Product & ambient temperature (multi‑channel)
• Quality management & audits
• Autonomous long‑term logging without power connection
• Mobile testing and service

Installation and operation – done in minutes

Connect the external Pt1000 probes, insert the battery – that’s it! Set intervals and limits, start logging – read out data via USB‑C. The backlit display and acoustic/optical alarm ensure safe and convenient use. Calibration certificate included – ideal for audits and quality management.

Summary:

• The data logger is designed for temperature measurement with four external Pt1000 probes
• 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 triggered via LED, LCD and acoustic signal
• The device includes a traceable calibration certificate
• The metrological traceability of references meets the requirements of EN ISO/IEC 17025

Scope of delivery:

• U0141
• User manual
• Traceable calibration certificate
• 1× 3.6 V lithium battery
• Free full version of COMET Vision analysis software
• External probes and USB communication cable are not included in the delivery