COMET system - Advanced features - History

For 30 years COMET system has been producing advanced measuring technology for environmental monitoring in industry, health and research, agriculture, IT datacenters and metrology.
We are an authorized distributor of the Czech producer of dataloggers, thermometers, sensors and monitoring systems COMET. We provide sales and calibration of most products of this brand. COMET system products can be purchased directly in our e-shop including calibration.

Comet U0110 temperature data logger
Immediately in stock
129,83 € excl. VAT
144,25 €
157,09 € incl. VAT
157,09 € incl. VAT
Temperature range (max) | 70 °C |
---|---|
Temperature range (min) | -30 °C |
The Comet U0110 datalogger is equipped with an internal temperature sensor that monitors temperature and stores it in internal memory. An…

Comet U3120 temperature and humidity data logger
Immediately in stock
206,22 € excl. VAT
229,13 €
249,53 € incl. VAT
249,53 € incl. VAT
Temperature range (max) | 70 °C |
---|---|
Temperature range (min) | -30 °C |
Humidity measurement range | 0 to100% |
The Comet U3120 datalogger allows you to measure temperature, humidity and dew point and store the measured data in internal memory at a…


Comet U0121 temperature data logger for two external Pt1000 probes
Immediately in stock
161,39 € excl. VAT
179,32 €
195,28 € incl. VAT
195,28 € incl. VAT
Ext. temperature range sensors (max) | 260 °C, závisí na typu sondy |
---|---|
Ext. temperature range sensors (min) | -200 °C, závisí na typu sondy |
The Comet U0121 temperature data logger is designed to record temperatures from two external Pt1000 probes. The data is stored in non…

WiFi temperature sensor Comet W0710
Immediately in stock
288,50 € excl. VAT
349,09 € incl. VAT
349,09 € incl. VAT
Temperature range (max) | 60 °C |
---|---|
Temperature range (min) | -30 °C |
The Comet W0710 Wireless WiFi Temperature Sensor can be easily connected using your building's existing WiFi network. Simply place it at…

WiFi temperature and humidity sensor Comet W3710
Immediately in stock
339,51 € excl. VAT
410,81 € incl. VAT
410,81 € incl. VAT
Temperature range (max) | 60 °C |
---|---|
Temperature range (min) | -30 °C |
Humidity measurement range | 10 to 95% |
The Comet W3710 wireless sensor is equipped with a built-in temperature and relative humidity sensor. It is particularly suitable for…


Comet U0141 temperature data logger for four external Pt1000 probes
Immediately in stock
216,98 € excl. VAT
241,08 €
262,55 € incl. VAT
262,55 € incl. VAT
Ext. temperature range sensors (max) | 260 °C, závisí na typu sondy |
---|---|
Ext. temperature range sensors (min) | -200 °C, závisí na typu sondy |
The Comet U0141 datalogger is designed to record temperatures from up to four external Pt1000 probes. The data is stored in non-volatile…


Comet U3120 IoT temperature and humidity datalogger
In stock
from
510,06 € excl. VAT
from 617,17 € incl. VAT
from 617,17 € incl. VAT
Temperature range (max) | 60 °C |
---|---|
Temperature range (min) | -20 °C |
Humidity measurement range | 0 to100% |
The Comet U3120M and U3120G data loggers are IoT wireless data loggers with built-in GSM modem. After purchasing a SIM card, immediate…


Comet U0110 IoT temperature data logger with built-in sensor and modem
usually in stock
from
441,12 € excl. VAT
from 533,76 € incl. VAT
from 533,76 € incl. VAT
Temperature range (max) | 60 °C |
---|---|
Temperature range (min) | -20 °C |
The Comet U0110M and U0110G temperature data loggers are IoT wireless data loggers with built-in GSM modem. After purchasing a SIM card,…


Datalogger Comet U6841 with 3 current inputs 0-20mA and 1 binary input
In stock
241,08 € excl. VAT
291,71 € incl. VAT
291,71 € incl. VAT
The Comet U6841 datalogger is designed to measure and record signals from three 0-20mA current inputs and one binary input. The data is…

WiFi temperature and humidity sensor Comet W3711
Immediately in stock
262,60 € excl. VAT
317,75 € incl. VAT
317,75 € incl. VAT
Temperature range (max) | depends on the type of sensor |
---|---|
Temperature range (min) | depends on the type of sensor |
Humidity measurement range | depends on the type of sensor |
The Comet W3711 wireless WiFi sensor can be used wherever there is a WiFi signal. This makes it ideal for use in buildings, warehouses,…


Digital thermometer, hygrometer with recording Comet D3120
Immediately in stock
258,22 € excl. VAT
312,45 € incl. VAT
312,45 € incl. VAT
Temperature range (max) | 60 °C |
---|---|
Temperature range (min) | -10 °C |
Humidity measurement range | 5 to 95 % |
The Comet D3120 thermometer is designed for measuring and recording room temperature and relative humidity with the possibility of direct…

WiFi temperature sensor Comet W0741
Immediately in stock
283,72 € excl. VAT
343,30 € incl. VAT
343,30 € incl. VAT
Temperature range (max) | 260 °C |
---|---|
Temperature range (min) | -90 °C |
The Comet W0741 wireless WiFi sensor is equipped with four outputs for external Pt1000 temperature probes. The installation of the sensor…

Datalogger Comet U3631 temperature, humidity and with connector for external temperature probe
Immediately in stock
270,57 € excl. VAT
327,39 € incl. VAT
327,39 € incl. VAT
Temperature range (max) | 70 °C |
---|---|
Temperature range (min) | -30 °C |
Ext. temperature range sensors (max) | 260 °C, závisí na typu sondy |
Ext. temperature range sensors (min) | -90 °C, závisí na typu sondy |
Humidity measurement range | 0 to100% |
The Comet U3631 datalogger is designed to record temperature, humidity and dew point temperature using internal sensors plus temperature…


Comet U0122 dual channel Pt1000 temperature data logger
Immediately in stock
179,32 € excl. VAT
216,98 € incl. VAT
216,98 € incl. VAT
Temperature range (max) | 70 °C |
---|---|
Temperature range (min) | -30 °C |
The datalogger is designed to record temperatures from one external Pt1000 probe and an internal temperature sensor.The recording is…


Comet D3631 thermometer and hygrometer with recording
In stock
273,76 € excl. VAT
331,25 € incl. VAT
331,25 € incl. VAT
Temperature range (max) | 60 °C |
---|---|
Temperature range (min) | -10 °C |
Ext. temperature range sensors (max) | 250 °C, závisí na typu připojené sondy |
Ext. temperature range sensors (min) | -50 °C, závisí na typu připojené sondy |
Humidity measurement range | 5 to 95 % |
The Comet D3631 thermometer is designed for measuring and recording room temperature and relative humidity with the possibility of direct…


Thermometer, hygrometer and barometer Comet D4130
Upon request
344,69 € excl. VAT
417,07 € incl. VAT
417,07 € incl. VAT
Temperature range (max) | 60 °C |
---|---|
Temperature range (min) | -10 °C |
Humidity measurement range | 5 to 95 % |
The Comet D4130 is designed to measure and record temperature, relative humidity and atmospheric pressure (it also measures the pressure…

Comet U4130 temperature, humidity and pressure data logger
In stock
301,26 € excl. VAT
364,52 € incl. VAT
364,52 € incl. VAT
Temperature range (max) | 70 °C |
---|---|
Temperature range (min) | -30 °C |
Humidity measurement range | 0 to100% |
The Comet U4130 stores temperature, relative humidity and atmospheric pressure in an internal memory that can store up to 500,000 values.…


Datalogger Comet U5841 with 3 voltage inputs 0-10V and 1 binary input
In stock
241,08 € excl. VAT
291,71 € incl. VAT
291,71 € incl. VAT
The Comet U5841 datalogger is designed to measure and record signals from three 0-10V voltage inputs and one binary input. The data is…

Datalogger Comet U7844 with binary and read inputs
In stock
241,08 € excl. VAT
291,71 € incl. VAT
291,71 € incl. VAT
The Comet U7844 datalogger is designed to monitor and record signals from four inputs, binary or pulse counters, see optional configuration…


Temperature, humidity, CO2 multilogger with barometer Comet M1323
Upon request
927,28 € excl. VAT
1 122,01 € incl. VAT
1 122,01 € incl. VAT
Temperature range (max) | 600 °C, depends on the type of sensor |
---|---|
Temperature range (min) | -200 °C, depends on the type of sensor |
Humidity measurement range | depends on the type of sensor |
CO2 measurement range | 2000 ppm |
Multilogger Comet M1323 is maximally equipped for professional use. It can measure temperature, humidity, CO2, barometric pressure, voltage…


Comet H7530 temperature, humidity and pressure sensor, Ethernet output and two relays
In stock
453,08 € excl. VAT
548,23 € incl. VAT
548,23 € incl. VAT
Temperature range (max) | 80 °C |
---|---|
Temperature range (min) | -30 °C |
Humidity measurement range | 0 to100% |
The Comet H7530 sensor is designed for online monitoring of temperature, humidity and atmospheric pressure using a built-in sensor and two…


Comet D4141 thermometer, hygrometer and barometer with external probe on cable
In stock
from
359,83 € excl. VAT
from 435,39 € incl. VAT
from 435,39 € incl. VAT
Temperature range (max) | 105 °C |
---|---|
Temperature range (min) | -30 °C |
Humidity measurement range | 0 to100% |
The Comet D4141 is designed to measure and record temperature, relative humidity and atmospheric pressure (it also measures the pressure…


Thermometer, hygrometer Comet D3121 with external probe on cable
Immediately in stock
from
271,77 € excl. VAT
from 328,84 € incl. VAT
from 328,84 € incl. VAT
Ext. temperature range sensors (max) | 105 °C |
---|---|
Ext. temperature range sensors (min) | -30 °C |
Humidity measurement range | 0 to100% |
Thermometer, hygrometer Comet D3121 with external probe on the cable is designed for direct measurement and recording of temperature,…


Comet G0241 temperature logger for temperature monitoring during transport
Upon request
716,48 € excl. VAT
866,94 € incl. VAT
866,94 € incl. VAT
Temperature range (max) | 260 °C |
---|---|
Temperature range (min) | -90 °C |
The Comet G0241 thermometer can be installed directly in the driver's cab. Using the two outputs to the external Pt1000 temperature sensor,…

WiFi temperature sensor Comet W0711
Immediately in stock
271,77 € excl. VAT
328,84 € incl. VAT
328,84 € incl. VAT
Temperature range (max) | 260 °C |
---|---|
Temperature range (min) | -90 °C |
The Comet W0711 is a WiFi wireless sensor to which you can connect one external Pt100 probe with a CINCH connector. This sensor is…

WiFi temperature, humidity, pressure and CO2 sensor Comet W4710
In stock
534,37 € excl. VAT
646,59 € incl. VAT
646,59 € incl. VAT
Temperature range (max) | 60 °C |
---|---|
Temperature range (min) | -30 °C |
Humidity measurement range | 0 to 95% |
CO2 measurement range | 5000 ppm |
The Comet W4710 WiFi sensor is versatile with internal sensors for measuring temperature, relative humidity, barometric pressure and CO2.…


Comet M1320 temperature and humidity multilogger
In stock
736,80 € excl. VAT
891,53 € incl. VAT
891,53 € incl. VAT
Temperature range (max) | 600 °C, depends on the type of sensor |
---|---|
Temperature range (min) | -200 °C, depends on the type of sensor |
Humidity measurement range | depends on the type of sensor |
This professional multilogger Comet M1320 allows the connection of two probes with MinDin connectors and two more probes via a terminal…


Comet M1200E temperature multilogger with 4 thermocouple inputs
In stock
424,79 € excl. VAT
514 € incl. VAT
514 € incl. VAT
Temperature range (max) | 1800 °C, závisí na typu připojené sondy |
---|---|
Temperature range (min) | -200 °C, závisí na typu připojené sondy |
The Comet M1200E Multilogger is designed to measure and record up to 16 variables with adjustable recording intervals from 1s to 24h. It…

Datalogger Comet U0541 for recording 0-10V voltage and temperature from external probes
In stock
241,08 € excl. VAT
291,71 € incl. VAT
291,71 € incl. VAT
Ext. temperature range sensors (max) | 260 °C, závisí na typu sondy |
---|---|
Ext. temperature range sensors (min) | -200 °C, závisí na typu sondy |
The Comet U0541 datalogger is designed to record temperatures from two external Pt1000 probes and record 0-10V voltages from two inputs.…


Datalogger Comet U3631 IoT temperature, humidity and external probe connector
In stock
from
506,87 € excl. VAT
from 613,31 € incl. VAT
from 613,31 € incl. VAT
Temperature range (max) | 60 °C |
---|---|
Temperature range (min) | -20 °C |
Ext. temperature range sensors (max) | 260 °C |
Ext. temperature range sensors (min) | -90 °C |
Humidity measurement range | 0 to100% |
The Comet U3631M and U3631G data loggers are IoT wireless data loggers with built-in GSM modem. After purchasing a SIM card, immediate…


Comet U3121 IoT temperature and humidity datalogger for external probe
In stock
from
486,55 € excl. VAT
from 588,73 € incl. VAT
from 588,73 € incl. VAT
The Comet U3121M and U3121G data loggers are IoT wireless data loggers with built-in GSM modem. After purchasing a SIM card, immediate…


Comet U0141 temperature data logger with modem
Immediately in stock
from
510,06 € excl. VAT
from 617,17 € incl. VAT
from 617,17 € incl. VAT
Ext. temperature range sensors (max) | 260 °C, závisí na typu sondy |
---|---|
Ext. temperature range sensors (min) | -200 °C, závisí na typu sondy |
The Comet U0141M and U0141G data loggers are designed to measure temperature via four external probes with ELKA connectors. The main…


Comet U0843 IoT temperature data logger for 2 external probes and with two binary inputs
In stock
from
510,06 € excl. VAT
from 617,17 € incl. VAT
from 617,17 € incl. VAT
The Comet U0843M and U0843G data loggers are IoT wireless data loggers with built-in GSM modem. After purchasing a SIM card, immediate…


Datalogger Comet U6841 IoT with 3 current inputs 0-20mA and 1 binary input
In stock
from
514,05 € excl. VAT
from 622 € incl. VAT
from 622 € incl. VAT
The Comet U6841M and U6841G data loggers are IoT wireless data loggers with built-in GSM modem. After purchasing a SIM card, immediate…


Datalogger Comet U7844 IoT with binary and read inputs
Upon request
from
510,06 € excl. VAT
from 617,17 € incl. VAT
from 617,17 € incl. VAT
The Comet U7844M and U7844G data loggers are IoT wireless data loggers with built-in GSM modem. After purchasing a SIM card, immediate…


Measuring and recording control panel with alarms Comet MS6D
In stock
1 171,55 € excl. VAT
1 417,58 € incl. VAT
1 417,58 € incl. VAT
Temperature range (max) | 1800 °C, depends on the type of sensor |
---|---|
Temperature range (min) | -200 °C, depends on the type of sensor |
Humidity measurement range | 0 to100%, depends on the type of sensor |
CO2 measurement range | depends on the type of sensor |
The Comet MS6D monitoring panel offers measurement of temperature, humidity, pressure, CO2, voltage, current, pulse and other variables. It…


Multilogger Comet M1300
Upon request
736,80 € excl. VAT
891,53 € incl. VAT
891,53 € incl. VAT
The professional multilogger Comet M1300 is equipped with four inputs for the terminal block. These offer the connection of external probes…


Comet M1322 temperature, humidity and CO2 multilogger
Upon request
862,72 € excl. VAT
1 043,89 € incl. VAT
1 043,89 € incl. VAT
Temperature range (max) | 600 °C, depends on the type of sensor |
---|---|
Temperature range (min) | -200 °C, depends on the type of sensor |
Humidity measurement range | depends on the type of sensor |
CO2 measurement range | 2000 ppm |
Professional multilogger Comet M1322 for measuring, temperature, humidity, CO2, voltage or current. For these purposes, the datalogger is…


Comet M1321 temperature, humidity and barometer multilogger
Upon request
797,37 € excl. VAT
964,82 € incl. VAT
964,82 € incl. VAT
Temperature range (max) | 600 °C, depends on the type of sensor |
---|---|
Temperature range (min) | -200 °C, depends on the type of sensor |
Humidity measurement range | depends on the type of sensor |
The Come M1321 professional multilogger measures temperature, humidity and barometric pressure. It is equipped with MiniDin connectors and…


Comet M1140 temperature and humidity multilogger
In stock
736,80 € excl. VAT
891,53 € incl. VAT
891,53 € incl. VAT
Temperature range (max) | 600 °C |
---|---|
Temperature range (min) | -200 °C |
The Comet M1140 Multilogger offers four inputs with MiniDin connectors to which temperature and humidity probes can be connected. The…


Comet M1220 temperature and humidity multilogger
Upon request
736,80 € excl. VAT
891,53 € incl. VAT
891,53 € incl. VAT
Temperature range (max) | 1800 °C, depends on the type of sensor |
---|---|
Temperature range (min) | -220 °C, depends on the type of sensor |
Humidity measurement range | depends on the type of sensor |
The professional Multilogger Comet M1220 offers the connection of two temperature or humidity probes via MiniDIN connector and two…


Comet H3531R 19" rack-mount temperature and humidity sensor with Ethernet output and relay
In stock
from
434,35 € excl. VAT
from 525,56 € incl. VAT
from 525,56 € incl. VAT
Temperature range (max) | 105 °C |
---|---|
Temperature range (min) | -30 °C |
Humidity measurement range | 0 to100% |
The Comet H3531R sensor is designed for 19" rack mounting (1 rack unit height 1U) and for online monitoring of temperature and humidity…


Comet H3531P temperature and humidity sensor with Ethernet output and relay
In stock
from
517,23 € excl. VAT
from 625,85 € incl. VAT
from 625,85 € incl. VAT
Temperature range (max) | 105 °C |
---|---|
Temperature range (min) | -30 °C |
Humidity measurement range | 0 to100% |
The Comet H3531P sensor is designed for online monitoring of temperature and humidity of pressurized air up to 25 bar using an external…


Comet H3531 temperature and humidity sensor with Ethernet output and relay
In stock
from
412,83 € excl. VAT
from 499,52 € incl. VAT
from 499,52 € incl. VAT
Temperature range (max) | 105 °C |
---|---|
Temperature range (min) | -30 °C |
Humidity measurement range | 0 to100% |
The Comet H3531 sensor is designed for online monitoring of temperature and humidity using an external probe on a cable and two-state…


Comet H3530 temperature and humidity sensor with Ethernet output and relay
In stock
382,94 € excl. VAT
463,36 € incl. VAT
463,36 € incl. VAT
Temperature range (max) | 80 °C |
---|---|
Temperature range (min) | -30 °C |
Humidity measurement range | 0 to100% |
The Comet H3530 is designed for online monitoring of temperature and humidity using a built-in sensor and two-state variables from three…


Comet H5521 CO2 sensor with Ethernet output and two relays
Immediately in stock
830,05 € excl. VAT
1 004,36 € incl. VAT
1 004,36 € incl. VAT
CO2 measurement range | 10000 ppm |
---|
The Comet H5521 sensor is designed to monitor CO2 concentration using an external probe on a cable. The CO2 measurement is based on the…


Comet H5524 CO2 sensor with Ethernet output and two relays
Upon request
395,70 € excl. VAT
478,80 € incl. VAT
478,80 € incl. VAT
CO2 measurement range | 2000 ppm |
---|
The Comet H5524 sensor is designed to monitor CO2 using a built-in sensor. The CO2 measurement is based on the NDIR principle with dual…


Comet H4531 temperature sensor with Ethernet output and two relays
In stock
331,14 € excl. VAT
400,68 € incl. VAT
400,68 € incl. VAT
Temperature range (max) | 600 °C, závisí na typu připojené sondy |
---|---|
Temperature range (min) | -200 °C, závisí na typu připojené sondy |
The Comet H4531 sensor is designed for online temperature monitoring using an external Pt1000 probe on a cable (max. length 10m) and two…