COMET C0121 – Dual-Channel Thermometer for Ni1000 Probes -50 to +250 °C

COMET C0121 – High-Precision 2-Channel Thermometer for Ni1000 Probes -50 to +250 °C (±0.2 °C), Acoustic/Visual Alarm, Min/Max Memory, LCD Backlight

The COMET C0121 is the high-precision dual-channel thermometer for Ni1000 probes – the ideal instrument for demanding temperature monitoring with two independent channels. With a measuring range of -50 to +250 °C, very high accuracy (±0.2 °C from -50 to +100 °C, ±0.2 % of reading above), and a traceable calibration certificate, it is perfect for laboratories, calibration, cold chain monitoring, climate chambers, industrial processes, food monitoring, pharmaceuticals, heating and cooling technology, or anywhere two temperatures must be measured and documented precisely at the same time.

The device supports two external Ni1000 probes simultaneously – ideal for differential measurements (e.g. flow/return, indoor/outdoor, product/ambient). The acoustic and visual alarm warns immediately when freely configurable limits are exceeded. Min/Max memory with reset function shows the extreme values since the last power-on. The backlit LCD is easy to read, and the measuring rate (0.7 to 5 s) and display update interval are adjustable. The robust housing (IP20) and battery power supply (9 V block or 12 V power adapter with NiMH accumulator) make it suitable for mobile and mains-independent use – battery life approx. 6 months.

The thermometer is maintenance-free, long-term stable, and comes with a 3-year warranty. The supplied traceable calibration certificate guarantees highest measurement accuracy ex works. No complicated operation – intuitive key control and clear menu structure. Whether as a reference device in the laboratory, as a process monitor in production, or as a mobile measuring device in the field – the C0121 impresses with precision, reliability, and easy handling.

Why the COMET C0121 is the best dual-channel thermometer:

• 2 independent channels for Ni1000 probes – perfect for differential measurements
• Very high accuracy – ±0.2 °C from -50 to +100 °C
• Acoustic and visual alarm – immediate warning when limits are exceeded
• Min/Max memory – extreme values since last reset
• Backlit LCD – easy to read even in poor lighting conditions
• Traceable calibration certificate included – maximum traceability
• Mobile battery power – approx. 6 months operating time (9 V block or NiMH accumulator)
• Adjustable measuring rate – 0.7 to 5 seconds
• Robust housing – for daily professional use
• 3-year warranty – COMET quality guaranteed

Technical Data C0121:

• Sensor: Ni1000 (external, 2 channels)
• Measuring range: -50 to +250 °C
• Accuracy: ±0.2 °C from -50 to +100 °C / ±0.2 % of reading above
• Resolution: 0.1 °C
• Alarm: acoustic + visual (configurable limits)
• Min/Max memory: yes, with reset function
• Display: backlit LCD, dual display possible
• Measuring interval / display update: 0.7 to 5 s (adjustable)
• Power supply: 9 V block battery or 12 V AC adapter with NiMH 9 V accumulator
• Battery life: approx. 6 months
• Operating temperature: -30 to +65 °C
• Protection class: IP20
• Dimensions (without connector): 141 x 71 x 27 mm
• Weight (incl. battery): approx. 150 g
• Warranty: 3 years

Perfectly suited for:

• Laboratory and calibration applications
• Cold chain monitoring and pharmaceutical logistics
• Climate chambers and incubators
• Heating and cooling technology (differential measurement)
• Process monitoring and quality control
• Mobile temperature measurement in the field
• Food and beverage production
• Reference measurements and documentation

Installation and Use – ready to go immediately

Connect Ni1000 probes (not included), insert the battery or connect the power adapter – done! Set limit values, reset Min/Max – start measuring immediately. The backlit display and acoustic alarm ensure safe and convenient operation. A calibration certificate is included – ideal for audits and quality management.

Summary:

• High-precision thermometer for Ni1000 RTD sensors
• Acoustic and visual temperature alarm
• LCD backlight
• Memory for minimum and maximum values
• Traceable calibration certificate

Scope of Delivery:

• C0121
• User manual
• Traceable calibration certificate
• 9 V battery
• Plastic transport case
• EXTERNAL SENSORS ARE NOT INCLUDED IN THE DELIVERY