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COMET M1323 – Multilogger with integrated CO2 & barometric pressure sensor, 2 MiniDIN + 2 terminals for Pt1000/DIGI T+RH

COMET M1323 – Ethernet Multilogger with integrated CO2 sensor (0–2000 ppm ±50 ppm + 2 %) & air pressure sensor (700–1100 hPa ±1.3 hPa), 2 MiniDIN + 2 terminals for Pt1000/DIGI T+RH/voltage/current/counter 

The COMET M1323 is a high‑performance Ethernet multilogger with integrated CO2 and barometric pressure sensors, plus 4 universal inputs (2× MiniDIN + 2× terminals) – the professional all‑in‑one solution for long‑term measurement and recording of indoor air quality parameters (CO2, temperature, humidity, dew point, air pressure) and additional signals (Pt1000, DIGI T+RH, 0–10 V, 0–20 mA, binary signal, pulse counter). As a network‑enabled datalogger with storage for 1 million values (non‑cyclic) or 600,000 values (cyclic), it is ideal for air quality monitoring (CO2 up to 2000 ppm), warehouses, climate chambers, server rooms, offices, schools, hospitals, laboratories, greenhouses, and industrial process control – anywhere multiple parameters must be monitored, alarmed, and remotely accessed at once.

The internal CO2 sensor measures 0 to 2000 ppm (±50 ppm + 2 % of measured value at 23 °C and 1013 hPa). The barometric pressure sensor measures 700 to 1100 hPa (±1.3 hPa at 23 °C). The 2 MiniDIN inputs accept Pt1000 temperature probes (−200 to +600 °C, ±0.2 °C from −200 to +100 °C, ±0.2 % above that) or DIGI T+RH probes for combined temperature/humidity measurement (dew point, absolute/specific humidity, mixing ratio, enthalpy). The 2 terminal inputs record voltage (0–10 V ±10 mV), current (0–20 mA), binary signals or pulses. The integrated web server allows live view, configuration, and data download directly via any web browser – no additional software required. Audible/visual alarm on limit exceedance. The backlit LCD displays all channels simultaneously. The logger operates either independently (battery mode) or permanently via Ethernet. Logging interval from 1 s to 24 h – flexible for any application.

The multilogger is maintenance‑free, long‑term stable, and supplied with a traceable calibration certificate (EN ISO/IEC 17025) – ensuring highest quality for GMP, ISO, and auditing environments. The free PC software and web interface enable convenient data evaluation. Battery life up to several months (depending on configuration). Whether used as a stationary Ethernet logger in a control cabinet or as a portable battery‑powered unit, the M1323 offers maximum flexibility and reliability. The 4 inputs allow mixed operation, e.g. 2× Pt1000 + 1× DIGI T+RH + 1× voltage.

Why the COMET M1323 is the professional multilogger with CO2 & air pressure:

  • Integrated CO2 sensor 0–2000 ppm & air pressure sensor 700–1100 hPa – complete climate monitoring
  • 4 inputs (2 MiniDIN + 2 terminals) – Pt1000, DIGI T+RH, 0–10 V, 0–20 mA, binary, counter
  • 1 million data records – non‑cyclic or cyclic
  • Ethernet & web server – remote access, live view, configuration via browser
  • Audible/visual alarm – instant warning on threshold exceedance
  • Min/Max memory & dew point/humidity parameters – all values automatically calculated
  • Backlit LCD – simultaneous display of all channels
  • Traceable calibration certificate included – EN ISO/IEC 17025
  • Mobile & stationary – battery or Ethernet power supply
  • 3‑year warranty – guaranteed COMET quality

Technical data M1323:

  • CO2 (internal): 0 to 2000 ppm (±50 ppm + 2 % of measured value at 23 °C and 1013 hPa)
  • Air pressure (internal): 700 to 1100 hPa (±1.3 hPa at 23 °C)
  • Temperature (external Pt1000): −200 to +600 °C (±0.2 °C from −200 to +100 °C / ±0.2 % above)
  • T+RH (external DIGI): according to connected probe
  • Dew point & humidity parameters: according to connected DIGI probe
  • Voltage (terminals): 0 to 10 V (±10 mV)
  • Resolution: 0.1 °C / 0.1 %RH / 1 ppm CO2 / 0.1 hPa
  • Channels: 4× universal (2 MiniDIN + 2 terminals)
  • Memory: 1,000,000 values (non‑cyclic) / 600,000 values (cyclic)
  • Logging interval: 1 s to 24 h
  • Measurement interval / display update: 0.7 to 5 s
  • Alarm: audible + visual (adjustable limits)
  • Display: backlit LCD
  • Interface: Ethernet (web server, Modbus TCP)
  • Power supply: battery or Ethernet adapter
  • Operating temperature: −10 to +60 °C
  • Protection class: IP20
  • Warranty: 3 years

Perfect applications:

  • Indoor air quality (CO2 + air pressure) in offices, schools, hospitals
  • Climate chambers and incubators
  • Warehouse and cold‑room monitoring
  • Pharmaceutical and food production
  • Server rooms and data centers
  • Process control with multiple measurement points
  • Quality management & audits
  • Remote monitoring via Ethernet / web

Setup and operation – done in minutes

Connect the probes, plug in Ethernet or battery – that’s it! Set intervals and limits, start logging – read data via web or USB. The backlit display and audible alarm ensure safe and convenient operation. Calibration certificate included – perfect for audits and quality management.

Summary:

  • Battery‑powered datalogger with integrated CO2 and air pressure sensors and 4 universal inputs for measuring temperature, humidity, voltage (0–10 V), current (0–20 mA), binary signals, and pulse counting
  • The multilogger can be integrated into an Ethernet network or used as a portable device
  • Includes a traceable calibration certificate according to EN ISO/IEC 17025
  • The multilogger measures and records sensor and electrical values via its inputs
  • Measured data can be displayed in a web browser, saved, and downloaded for later analysis.

Scope of delivery:

  • M1323
  • User manual
  • Traceable calibration certificate
  • 3× rechargeable AA batteries
  • Power adapter
  • USB cable
  • Wall mount
  • FREE FULL VERSION of COMET Vision analysis software
  • EXTERNAL PROBES ARE NOT INCLUDED IN DELIVERY
Datasheets
Datasheet 1

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Datasheet 1 (428.37 KB)
Datasheet 2

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Datasheet 2 (547.20 KB)
Datasheet 3

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Datasheet 3 (2.54 MB)

Multilogger – Thermo‑Hygro‑CO₂‑Barometer with 2 MiniDIN and 2 Terminal Inputs

Measured parameters

  • Temperature
  • Relative humidity
  • Calculated values (e.g. dew point)
  • CO₂
  • Air pressure
  • Current
  • Voltage
  • Binary signal (state)
  • Pulses

Temperature sensor – external Pt1000 probe

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

Temperature and humidity sensor – external T+RH DIGI 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

Air pressure sensor

  • Measuring range: 700 hPa to 1100 hPa
  • Accuracy: ±1.3 hPa at 23 °C
  • Resolution: 0.1 hPa

CO₂ sensor

  • Measuring range: 0 to 2000 ppm
  • Accuracy: 50 ppm + 2 % of measured value at 23 °C and 1013 hPa
  • Resolution: 1 ppm

DC voltage

  • Measuring range: 0 to 10 V
  • Accuracy: ±10 mV
  • Resolution: better than 100 µV

DC current

  • Measuring range: 0 to 20 mA
  • Accuracy: ±20 µA
  • Resolution: better than 0.1 µA

Binary input

  • Input voltage for “On” state: <0.4 V / >2 V
  • Min./max. input voltage: 0 V to +30 V DC
  • Input impedance:
    • “On” state: <10 kΩ
    • “Off” state: >300 kΩ

Counter input

  • Counter range: 24 bit (16,777,215), overflow allowed
  • Maximum input frequency: 200 Hz

General technical data

  • Operating temperature: −10 °C to +60 °C
  • Channels:
    • Internal air pressure and CO₂ sensor
    • 2× external temperature probes or connectable temperature/humidity probes
    • 2× binary, counter, voltage and current inputs
  • Calculated values: dew point, absolute humidity, specific humidity, mixing ratio, specific enthalpy
  • Memory:
    • 1,000,000 records (non‑cyclic)
    • 600,000 records (cyclic)
  • Logging interval: 1 s to 24 h
  • Display and alarm update: every 10 s
  • Logging mode:
    • Non‑cyclic – recording stops when memory is full
    • Cyclic – oldest data are overwritten
  • Temperature units: °C, °F
  • Interfaces: Ethernet, USB, RS232
  • Ethernet protocols: WWW, SNMPv1, XML, DATALINK
  • Alarm protocols: e‑mail
  • Power supply: mains adapter 230 VAC / 5 VDC (required for Ethernet)
  • Battery life: approx. 3–4 weeks
  • Protection class: IP20
  • Dimensions: 178 × 95 × 37 mm (without connectors or cables)
  • Weight (including 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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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
COMET SN252M – Ultra-thin Pt1000 temperature probe, -50 to +200 °C, Mini DIN connector
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Product number: SN252M-1

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COMET SN164M – Pt1000 Surface Probe -50 to +200 °C, Mini DIN Connector
COMET SN164M – Pt1000 Surface Probe -50 to +200 °C, Mini DIN Connector
The COMET SN164M Pt1000 surface probe measures temperatures from -50 to +200 °C on solid surfaces and features a Mini DIN connector and silicone cable.
Product number: SN164M-1

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COMET SN170M – Pt1000 Pipe Surface Probe -30 to +130 °C, Mini DIN Connector
COMET SN170M – Pt1000 Pipe Surface Probe -30 to +130 °C, Mini DIN Connector
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
COMET SN263M – Pt1000 Temperature Probe for ATEX Zone 2/22, -30 to +180 °C, Mini DIN Connector
The COMET SN263M Pt1000 ATEX probe measures temperatures from -30 to +180 °C and features a Mini DIN connector and silicone cable.
Product number: SN263M-1

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COMET SN270M – Pt1000 Exhaust Gas and Flue Gas Temperature Probe -50 to +400 °C, MiniDIN Connector
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Product number: SN270M-1

Regular price: From €80.00
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Compatible Temperature/Humidity Probes

COMET DIGIS/M – Temperature and Humidity Probe, -10 to +60 °C, MiniDin Connector
COMET DIGIS/M – Temperature and Humidity Probe, -10 to +60 °C, MiniDin Connector
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
COMET DIGIL/M – Temperature and Humidity Probe -10 to +60 °C (±0.4 °C), MiniDin Connector
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
COMET A1825eu – Switching Power Supply 100-240 V AC to 5 V DC / 2.1 A with EU Plug
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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Compatible Router

300 Mbps Wi-Fi N Nano Router
300 Mbps Wi-Fi N Nano Router
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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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