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COMET M1140 – Ethernet Multilogger with 4 MiniDIN inputs for Pt1000 and DIGI T+RH probes

COMET M1140 – Ethernet multilogger with 4 MiniDIN inputs for Pt1000 and DIGI T+RH probes, −200 to +600 °C, humidity/dew point, 1 million data memory 

The COMET M1140 is a versatile Ethernet multilogger with four MiniDIN inputs – the professional solution for long-term measurement and recording of temperature, humidity, and dew point using up to four external probes simultaneously. Whether Pt1000 temperature probes or DIGI T+RH probes, the M1140 measures −200 to +600 °C and humidity/dew point with high precision. As a network-enabled data logger with a memory capacity of 1,000,000 readings (non-cyclic) or 600,000 readings (cyclic), it is ideal for laboratories, climate chambers, storage monitoring, cold chain control, pharmaceutical production, server rooms, greenhouses, or industrial process management – anywhere multiple measurement points need to be monitored and remotely accessed via Ethernet.

The four MiniDIN inputs support Pt1000 probes for temperature (−200 to +600 °C, ±0.2 °C from −200 to +100 °C, ±0.2 % above) or DIGI T+RH probes for combined temperature and humidity measurement. All humidity parameters (dew point, absolute/specific humidity, mixing ratio, specific enthalpy) are calculated automatically. The integrated web server allows live view, configuration, and data download via browser – no additional software required. The acoustic and optical alarm provides an immediate warning in case of limit exceedance. Min/Max values are stored. The backlit LCD displays all channels simultaneously. The logger operates autonomously (battery mode) or continuously via Ethernet power. Logging interval 1 s to 24 h – adaptable for any application.

The multilogger is maintenance-free, long-term stable, and supplied with a traceable calibration certificate (EN ISO/IEC 17025) – maximum accuracy for GMP, ISO, and audit applications. The free PC software and web interface provide convenient analysis and data management. Battery life up to several months (depending on configuration). Whether used as a stationary Ethernet logger in control panels or as a portable battery-powered device – the M1140 offers maximum flexibility and reliability. The four inputs allow mixed operation, e.g. 2× Pt1000 + 2× DIGI T+RH.

Why the COMET M1140 is the professional Ethernet multilogger:

  • 4 MiniDIN inputs – connect up to four temperature or T+RH probes simultaneously
  • Wide measuring range – Pt1000: −200 to +600 °C, DIGI T+RH according to probe specification
  • 1 million data memory – non-cyclic or cyclic
  • Ethernet & web server – remote access, live view, and configuration via browser
  • Acoustic/optical alarm – immediate warning on limit exceedance
  • Min/Max memory & humidity parameters – all values calculated automatically
  • Backlit LCD – simultaneous display of all channels
  • Traceable calibration certificate included – EN ISO/IEC 17025 compliant
  • Mobile & stationary operation – battery or Ethernet power supply
  • 3-year warranty – guaranteed COMET quality

Technical data M1140:

  • Temperature (Pt1000 external): −200 to +600 °C (±0.2 °C from −200 to +100 °C / ±0.2 % above)
  • T+RH (DIGI external): according to connected probe
  • Dew point & humidity parameters: according to connected DIGI probe
  • Resolution: 0.1 °C / 0.1 %RH / 0.1 °C dew point
  • Channels: 4× MiniDIN (Pt1000 or DIGI T+RH)
  • Memory: 1,000,000 readings (non-cyclic) / 600,000 readings (cyclic)
  • Logging interval: 1 s to 24 h
  • Measuring interval / display update: 0.7 to 5 s
  • Alarm: acoustic + optical (adjustable limits)
  • Display: backlit LCD
  • Interface: Ethernet (Web Server, Modbus TCP)
  • Power supply: battery or Ethernet power adapter
  • Operating temperature: −10 to +60 °C
  • Protection class: IP20
  • Warranty: 3 years

Perfectly suited for:

  • Long-term monitoring in laboratories and calibration environments
  • Climate chambers and incubators
  • Storage and cold-room applications
  • Pharmaceutical and food production
  • Server rooms and data centers
  • Process monitoring with multiple measurement points
  • Quality management & audits
  • Remote monitoring via Ethernet/Web

Installation and operation – ready in minutes

Connect the probes, plug in Ethernet or battery – done! Set intervals and limits, start logging – download data later via web or USB. The backlit LCD and acoustic alarm make operation safe and convenient. Calibration certificate included – ideal for audits and quality management.

Summary:

  • Universal data logger with MiniDIN inputs for connecting up to four temperature and/or humidity probes
  • The multilogger can be permanently integrated into an Ethernet network or used as a mobile device
  • A traceable calibration certificate according to EN ISO/IEC 17025 is included in the delivery
  • The multilogger is a battery-powered data logger that records sensor and electrical signals via its inputs
  • The data logger can be connected to an Ethernet network
  • Measured values can be displayed in a web browser, saved, and downloaded for later analysis

Scope of delivery:

  • M1140
  • User manual
  • Traceable calibration certificate
  • 3× rechargeable AA batteries
  • Power adapter
  • USB cable
  • Wall-mount bracket
  • FREE full version of COMET Vision analysis software
  • EXTERNAL PROBES NOT INCLUDED IN DELIVERY
Datasheets
Datasheet 1

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Datasheet 1 (2.54 MB)
Datasheet 2

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Datasheet 2 (119.95 KB)

Ethernet Multilogger – Thermo-hygrometer with 4× MiniDIN inputs

Measured parameters

  • Temperature
  • Relative humidity
  • Calculated values (e.g. dew point)

Temperature sensor – external Pt1000 probe

  • Measuring range: −200 °C to +600 °C
  • Accuracy:
    • ±0.2 °C from −200 °C to +100 °C
    • ±0.2 % of the measured value from +100 °C to +600 °C
  • Resolution: 0.1 °C

Temperature and humidity sensor – external DIGI (T+RH) probe

  • Measuring range: according to connected DIGI/M probe
  • Accuracy: according to connected DIGI/M probe
  • Resolution: 0.1 °C

Dew point

  • Measuring range: according to connected DIGI/M probe
  • Accuracy: according to connected DIGI/M probe
  • Resolution: 0.1 °C

Calculated values

  • Dew point
  • Absolute humidity
  • Specific humidity
  • Mixing ratio
  • Specific enthalpy

General technical data

  • Operating temperature: −10 °C to +60 °C
  • Channels: 4× external temperature probe or connectable temperature/humidity probe
  • Memory:
    • 1,000,000 readings (non-cyclic recording)
    • 600,000 readings (cyclic recording)
  • Logging interval: 1 s to 24 h
  • Display and alarm update: every 10 s
  • Recording mode:
    • Non-cyclic – recording stops when memory is full
    • Cyclic – oldest data are overwritten when memory is full
  • Temperature units: °C, °F
  • Interfaces: Ethernet, USB, RS232
  • Ethernet protocols: WWW, SNMPv1, XML, DATALINK
  • Alarm notification: e‑mail
  • Power supply: power adapter 230 V AC / 5 V DC (required for Ethernet operation)
  • Battery life: approx. 3–4 weeks
  • Protection class: IP20
  • Dimensions: 178 × 95 × 37 mm (without connectors and cables)
  • Weight (incl. batteries): approx. 380 g
  • Warranty: 3 years
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Compatible temperature probes

COMET SN199M – Pt1000 Temperature Probe -30 to +80 °C, Mini DIN Connector
COMET SN199M – Pt1000 Temperature Probe -30 to +80 °C, Mini DIN Connector
The COMET SN199M Pt1000 probe measures temperatures from -30 to +80 °C and features a Mini DIN connector, PVC cable, and IP67 protection.
Product number: SN199M-1

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COMET SN186M – Affordable Pt1000 Temperature Probe -30 to +80 °C, Mini DIN Connector
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Product number: SN185M-1

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COMET SN104M – Pt1000 Temperature Probe -50 to +200 °C, Mini DIN Connector
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The COMET SN104M Pt1000 probe measures temperatures from -50 to +200 °C and features a Mini DIN connector, silicone cable, and IP67 protection.
Product number: SN104M-1

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COMET SN252M – Ultra-thin Pt1000 temperature probe, -50 to +200 °C, Mini DIN connector
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COMET SN164M – Pt1000 Surface Probe -50 to +200 °C, Mini DIN Connector
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COMET SN170M – Pt1000 Pipe Surface Probe -30 to +130 °C, Mini DIN Connector
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The COMET SN170M Pt1000 pipe surface probe measures temperatures from -30 to +130 °C on pipe surfaces and features a Mini DIN connector and mounting strap.
Product number: SN170M-1

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COMET SN263M – Pt1000 Temperature Probe for ATEX Zone 2/22, -30 to +180 °C, Mini DIN Connector
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Product number: SN263M-1

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Product number: SN270M-1

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Compatible temperature/humidity probes

COMET DIGIS/M – Temperature and Humidity Probe, -10 to +60 °C, MiniDin Connector
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The COMET DIGIS/M digital temperature and humidity probe (63 x 16 mm) with MiniDin connector measures temperatures from -10 to +60 °C and humidity from 0 to 100% RH.
Product number: DIGIS/M-1-1

Regular price: From €83.00
COMET DIGIL/M – Temperature and Humidity Probe -10 to +60 °C (±0.4 °C), MiniDin Connector
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COMET DIGIL/M digital T+RH probe 54 x 18 mm with MiniDin connector measures -10 to +60 °C and 0–100 %RH.
Product number: DIGIL/M-1-1

Regular price: From €91.00
COMET DIGIH/M-1 – Temperature and Humidity Probe, -10 to +60 °C / 0–100 %RH, MiniDin Connector
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The COMET DIGIH/M-1 ultra-thin digital temperature and humidity probe, Ø 11 mm, with MiniDin connector, measures temperatures from -10 to +60 °C and 0–100 %RH.
Product number: DIGIH/M-1-1

Regular price: From €95.00
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Compatible power supply

COMET A1825eu – Switching Power Supply 100-240 V AC to 5 V DC / 2.1 A with EU Plug
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COMET A1825eu Power Supply 230V to 5V/2.1A with EU plug and 5.5 x 2.1 mm coaxial connector.
Product number: A1825eu

Regular price: €29.00
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Communication

300 Mbps Wi-Fi N Nano Router
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Product number: TL-WIFI

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Manufacturer Information:

COMET SYSTEM, s.r.o.

Bezručova 2901

756 61 Rožnov pod Radhoštěm
Czech Republic

Phone: +420 571 653 990

Email: info@cometsystem.com

Responsible person:

Didactum® Security GmbH

Im Mühlenfeld 4

48163 Münster
Deutschland

Fon: (+49) 250 19 71 63 54 / (+49) 171 33 11 577

Email: info@didactum-security.de

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