COMET D0221 – 2-Channel Thermometer for Ni1000/Pt1000 Probes -200 to +500 °C

COMET D0221 – High-precision dual-channel thermometer/data logger for Ni1000/Pt1000 probes -200 to +500 °C (±0.3 °C), 16,000 value memory, alarm, LCD backlight 

The COMET D0221 is a high-precision dual-channel thermometer with integrated data logger for Ni1000 and Pt1000 probes – the ideal solution for long-term temperature monitoring and documentation with two independent channels. With a measuring range from -200 to +500 °C, very high accuracy (±0.3 °C from -50 to +100 °C, ±0.3% of reading above) and a traceable calibration certificate, it is perfect for laboratories, calibration, cold chains, climate chambers, industrial processes, food monitoring, pharmaceuticals, and HVAC applications – anywhere two temperatures must be measured and recorded simultaneously with high precision.

The device supports two external Ni1000 or Pt1000 probes simultaneously – ideal for differential measurements (e.g. flow/return, indoor/outdoor, product/ambient). The non-cyclic or cyclic memory stores up to 16,000 readings (approx. 185 days at a 10 s interval). The recording interval is freely adjustable from 10 s to 24 h. The acoustic and visual alarms trigger immediately when set limits are exceeded. The Min/Max memory displays extreme values. The backlit LCD display is easy to read, and both the measuring rate (0.7 to 5 s) and display update rate can be adjusted. The robust housing (IP20) and battery power (9 V block or 12 V power supply with NiMH battery) make it mobile and mains-independent – battery life approx. 6 months.

The free PC software enables easy data transfer via USB cable (download only; no measurement when connected). Recorded data can be displayed graphically, exported, and analyzed. The thermometer is maintenance-free, long-term stable, and comes with a 3-year warranty. The included traceable calibration certificate ensures the highest factory accuracy. Intuitive operation via buttons and a clear menu interface makes it simple to use. Whether as a mobile field logger, a continuous production monitor, or a reference device in the lab – the D0221 impresses with precision, memory capacity, and ease of use.

Why the COMET D0221 is the best dual-channel thermometer with logger:

• 2 independent channels for Ni1000/Pt1000 probes – perfect for differential measurements
• High accuracy – ±0.3 °C from -50 to +100 °C
• 16,000 readings memory – cyclic or non-cyclic
• Adjustable recording interval – 10 s to 24 h
• Acoustic and visual alarms – instant warning when limits are exceeded
• Min/Max memory – extreme values since last reset
• Backlit LCD display – easy to read even under poor lighting conditions
• Traceable calibration certificate included – maximum reliability
• Battery-powered operation – approx. 6 months runtime (9 V block or NiMH battery)
• Free PC software – simple data transfer and analysis
• 3-year warranty – guaranteed COMET quality

Technical data D0221:

• Sensor: Ni1000 / Pt1000 (external, 2 channels)
• Measuring range: -200 to +500 °C
• Accuracy: ±0.3 °C from -50 to +100 °C / ±0.3% of reading above / ±0.6% from -200 to -50 °C
• Resolution: 0.1 °C
• Alarm: acoustic + visual (adjustable limits)
• Memory: 16,000 readings (non-cyclic or cyclic)
• Recording interval: 10 s to 24 h (adjustable)
• Measuring interval / display update: 0.7 to 5 s
• Display: backlit LCD
• Power supply: 9 V battery or 12 Vdc power adapter with NiMH 9 V battery
• Battery life: approx. 6 months
• Operating temperature: -30 to +65 °C
• Protection rating: IP20
• Dimensions (without connector): 141 × 71 × 27 mm
• Weight (including battery): approx. 150 g
• Warranty: 3 years

Perfect for:

• Laboratory and calibration applications
• Cold chain and pharmaceutical logistics
• Climate chambers and incubators
• Heating and cooling systems (differential measurement)
• Process monitoring and quality control
• Long-term temperature logging
• Food and beverage production
• Reference measurements and documentation

Installation and operation – ready to use

Connect the Ni1000/Pt1000 probes (not included), insert the battery or connect the power supply – done! Set the limit values, start recording – transfer data later via USB to the PC. The backlit display and acoustic alarm ensure safe and convenient operation. Calibration certificate included – ideal for audits and quality management.

Summary:

• The thermometer is used for direct temperature measurement and data storage in internal non-volatile memory
• With the free PC software, recorded data can be transferred to a PC for later evaluation
• LCD backlight
• The device connects to the PC only for data transfer using the supplied USB cable
• No measurement or recording possible while connected to the PC.

Scope of delivery:

• D0221
• User manual
• Traceable calibration certificate
• 9 V battery
• Mini USB cable
• Plastic transport case
• Self-adhesive dual lock for easy installation
• FREE FULL VERSION of COMET Vision analysis software
• EXTERNAL PROBES ARE NOT INCLUDED