COMET - Communication protocols - ModBus RTU

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 T0410 temperature sensor with RS485 output
In stock
196,96 €
excl. VAT
238,32 € incl. VAT
| Temperature range (max) | 80 °C |
|---|---|
| Temperature range (min) | -30 °C |
The Comet T0410 sensor is designed to measure room temperature using a built-in sensor. The measured values are displayed on the LCD…

Comet T3411 temperature and humidity sensor with RS485 output
Upon request
254,41 €
excl. VAT
307,84 € incl. VAT
| Temperature range (max) | 80 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
The Comet T3411 is designed to measure temperature and relative humidity using a built-in sensor. It can further convert the measured…

Comet T7410 temperature, humidity and pressure sensor with RS485 output
In stock
366,43 €
excl. VAT
443,38 € incl. VAT
| Temperature range (max) | 80 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
The Comet T7410 sensor is designed to measure temperature, relative humidity and atmospheric pressure using a built-in sensor. It can also…


Comet T3319 temperature and humidity sensor with RS232 output
usually in stock
from
207,22 €
excl. VAT
from 250,74 € incl. VAT
| Temperature range (max) | 105 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
The Comet T3319 sensor is designed to measure temperature and relative humidity using an external probe on a cable. The instrument comes…

Comet T3311 temperature and humidity sensor with RS232 output
Upon request
178,91 €
excl. VAT
216,48 € incl. VAT
| Temperature range (max) | 80 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
The Comet T3311 is designed to measure temperature and relative humidity using a built-in sensor. It can further convert the measured…

Comet H4431 temperature transmitter and controller with RS485 output
In stock
268,36 €
excl. VAT
324,72 € incl. VAT
| Temperature range (max) | 600 °C, závisí na typu připojené sondy |
|---|---|
| Temperature range (min) | -200 °C, závisí na typu připojené sondy |
The Comet H4431 is designed for online temperature monitoring using an external Pt1000 probe on a cable (max. length 10m) and two-state…

Comet H4331 temperature transmitter and controller with RS232 output
Upon request
224,87 €
excl. VAT
272,09 € incl. VAT
| Temperature range (max) | 600 °C, závisí na typu připojené sondy |
|---|---|
| Temperature range (min) | -200 °C, závisí na typu připojené sondy |
The Comet H4331 is designed for online temperature monitoring using an external Pt1000 probe on a cable (max. length 10m) and two-state…

Comet T7418 indoor temperature, humidity and pressure sensor with RS485 output
In stock
312,27 €
excl. VAT
377,85 € incl. VAT
| Temperature range (max) | 50 °C |
|---|---|
| Temperature range (min) | -10 °C |
| Humidity measurement range | 5 to 95 % |
The Comet T7418 indoor sensor is designed to measure temperature, relative humidity and atmospheric pressure indoors and for building…

Comet T7318 indoor temperature, humidity and pressure sensor with RS232 output
Upon request
245,38 €
excl. VAT
296,91 € incl. VAT
| Temperature range (max) | 50 °C |
|---|---|
| Temperature range (min) | -10 °C |
| Humidity measurement range | 5 to 95 % |
The Comet T7318 indoor sensor is designed to measure temperature, relative humidity and atmospheric pressure indoors and for building…

Interior temperature sensor Comet T0418 with RS485 output
In stock
169,47 €
excl. VAT
205,06 € incl. VAT
| Temperature range (max) | 50 °C |
|---|---|
| Temperature range (min) | -10 °C |
The Comet T0418 indoor sensor is designed for indoor temperature measurement and building energy management. The design of the device…

Interior temperature sensor Comet T0318 with RS232 output
In stock
106,28 €
excl. VAT
128,60 € incl. VAT
| Temperature range (max) | 50 °C |
|---|---|
| Temperature range (min) | -10 °C |
The Comet T0318 indoor sensor is designed for measuring indoor temperature and for building energy management. The design of the device…

Comet T3418 indoor temperature and humidity sensor with RS485 output
In stock
222,81 €
excl. VAT
269,60 € incl. VAT
| Temperature range (max) | 50 °C |
|---|---|
| Temperature range (min) | -10 °C |
| Humidity measurement range | 5 to 95 % |
The Comet T3418 indoor sensor is designed for measuring indoor temperature and relative humidity and for energy management in buildings. It…

Comet T3318 indoor temperature and humidity sensor with RS232 output
In stock
155,52 €
excl. VAT
188,18 € incl. VAT
| Temperature range (max) | 50 °C |
|---|---|
| Temperature range (min) | -10 °C |
| Humidity measurement range | 5 to 95 % |
The Comet T3318 indoor sensor is designed for measuring indoor temperature and relative humidity and for energy management in buildings. It…

Comet T5441 CO2 sensor with external probe and RS485 output
Upon request
768,98 €
excl. VAT
930,47 € incl. VAT
| CO2 measurement range | 10000 ppm |
|---|
The Comet T5441 sensor is designed to measure CO2 concentration using an external probe on a cable. The CO2 measurement is based on the…

Comet T5440 CO2 sensor with RS485 output
Upon request
321,71 €
excl. VAT
389,27 € incl. VAT
| CO2 measurement range | 2000 ppm |
|---|
The Comet T5440 sensor is designed to measure the concentration of carbon dioxide CO2 using a built-in sensor. The CO2 measurement is based…

Comet T5341 CO2 sensor with external probe and RS232 output
Upon request
730,41 €
excl. VAT
883,80 € incl. VAT
| CO2 measurement range | 10000 ppm |
|---|
The Comet T5341 sensor is designed to measure CO2 concentration using an external probe on a cable. The CO2 measurement is based on the…

Comet T5340 CO2 sensor with RS232 output
Upon request
294,21 €
excl. VAT
355,99 € incl. VAT
| CO2 measurement range | 2000 ppm |
|---|
The Comet T5340 is designed to measure the concentration of CO2 in the air using a built-in sensor. The CO2 measurement is based on the…

Comet T8448 indoor CO2 and temperature sensor with RS485 output
Upon request
379,98 €
excl. VAT
459,78 € incl. VAT
| Temperature range (max) | 50 °C |
|---|---|
| Temperature range (min) | -10 °C |
| CO2 measurement range | 2000 ppm |
The Comet T8448 indoor sensor is designed to measure CO2 concentration and temperature indoors and for energy management in buildings. The…

Comet T2414 atmospheric pressure sensor with RS485 output
In stock
290,11 €
excl. VAT
351,03 € incl. VAT
The Comet T2414 sensor is designed to measure atmospheric pressure using a built-in sensor. The measured value is displayed on the LCD…

Comet T2314 atmospheric pressure sensor with RS232 output
Upon request
201,07 €
excl. VAT
243,29 € incl. VAT
The Comet T2314 is designed to measure atmospheric pressure using a built-in sensor. The measured value is displayed on the LCD display.…

Temperature, humidity and CO2 sensor and controller Comet H6420 with RS485 output
Upon request
505,54 €
excl. VAT
611,70 € incl. VAT
| Temperature range (max) | 80 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
| CO2 measurement range | 2000 ppm |
The Comet H6420 is designed to measure CO2 concentration, temperature and humidity using built-in sensors. The CO2 measurement is based on…

Temperature, humidity and CO2 sensor and controller Comet H6320 with RS232 output
Upon request
453,02 €
excl. VAT
548,15 € incl. VAT
| Temperature range (max) | 80 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
| CO2 measurement range | 2000 ppm |
The Comet H6320 is designed to measure CO2 concentration, temperature and humidity using built-in sensors. The CO2 measurement is based on…

Comet H0430 temperature sensor and controller with RS485 output
In stock
297,09 €
excl. VAT
359,48 € incl. VAT
| Temperature range (max) | 80 °C |
|---|---|
| Temperature range (min) | -30 °C |
The Comet H0430 is designed for online temperature monitoring using a built-in sensor and dual-state variables from three binary inputs.…

Comet H3431 temperature and humidity sensor and controller with RS485 output
In stock
from
385,31 €
excl. VAT
from 466,23 € incl. VAT
| Temperature range (max) | 105 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
The Comet H3431 is designed for online monitoring of temperature and relative humidity using an external probe and dual-state variables…

Comet H3430 temperature and humidity sensor and controller with RS485 output
Upon request
365,61 €
excl. VAT
442,39 € incl. VAT
| Temperature range (max) | 80 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
The Comet H3430 is designed for online monitoring of temperature and relative humidity using a built-in sensor and dual-state variables…

Comet H5421 CO2 sensor and controller with external probe and RS485 output
Upon request
835,04 €
excl. VAT
1 010,40 € incl. VAT
| CO2 measurement range | 10000 ppm |
|---|
The Comet H5421 is designed to measure CO2 concentration using an external probe on a cable. The CO2 measurement is based on the NDIR…

Comet H5424 CO2 sensor and controller with RS485 output
Upon request
380,80 €
excl. VAT
460,77 € incl. VAT
| CO2 measurement range | 2000 ppm |
|---|
The Comet H5424 is designed to measure CO2 concentration using a built-in sensor. The CO2 measurement is based on the NDIR principle with…

Comet H5321 CO2 sensor and controller with external probe and RS232 output
Upon request
793,19 €
excl. VAT
959,76 € incl. VAT
| CO2 measurement range | 10000 ppm |
|---|
The Comet H5321 is designed to measure CO2 concentration using an external probe on a cable. The CO2 measurement is based on the NDIR…

Comet H5324 CO2 sensor and controller with RS232 output
Upon request
348,38 €
excl. VAT
421,54 € incl. VAT
| CO2 measurement range | 2000 ppm |
|---|
The Comet H5324 is designed to measure CO2 concentration using a built-in sensor. The CO2 measurement is based on the NDIR principle with…

Comet H7430 temperature, humidity and pressure controller with RS485 output
In stock
438,65 €
excl. VAT
530,77 € incl. VAT
| Temperature range (max) | 80 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
The Comet H7430 is designed for online monitoring of temperature, relative humidity and atmospheric pressure using a built-in sensor and…

Comet H3331 temperature and humidity sensor and controller with RS232 output
In stock
from
328,27 €
excl. VAT
from 397,21 € incl. VAT
| Temperature range (max) | 105 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
The Comet H3331 is designed for online monitoring of temperature and humidity using an external probe on a cable and dual state variables…

Comet T4411 temperature transmitter with RS485 output
In stock
169,47 €
excl. VAT
205,06 € incl. VAT
| Temperature range (max) | 600 °C |
|---|---|
| Temperature range (min) | -200 °C |
The Comet T4411 transmitter is designed for temperature measurement using an external temperature probe with a Pt1000 sensor. The maximum…

Comet T4311 temperature transmitter with RS232 output
In stock
112,43 €
excl. VAT
136,04 € incl. VAT
| Temperature range (max) | 600 °C, závisí na typu připojené sondy |
|---|---|
| Temperature range (min) | -200 °C, závisí na typu připojené sondy |
The Comet T4311 transmitter is designed for temperature measurement using an external temperature probe with a Pt1000 sensor. The maximum…

Comet T6340 temperature, humidity and CO2 sensor with RS232 output
Upon request
357,82 €
excl. VAT
432,96 € incl. VAT
| Temperature range (max) | 50 °C |
|---|---|
| Temperature range (min) | -10 °C |
| Humidity measurement range | 5 to 95 % |
| CO2 measurement range | 2000 ppm |
The Comet T6340 sensor is designed to measure temperature, relative humidity and CO2 concentration using built-in sensors. The CO2…

Comet T6440 temperature, humidity and CO2 sensor with RS485 output
In stock
429,22 €
excl. VAT
519,36 € incl. VAT
| Temperature range (max) | 50 °C |
|---|---|
| Temperature range (min) | -10 °C |
| Humidity measurement range | 5 to 95 % |
| CO2 measurement range | 2000 ppm |
The Comet T6440 sensor is designed to measure temperature, relative humidity and CO2 concentration using built-in sensors. The CO2…


Comet T7411 temperature, humidity and pressure sensor with RS485 output
In stock
from
384,08 €
excl. VAT
from 464,74 € incl. VAT
| Temperature range (max) | 105 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
The Comet T7411 sensor with external probe on the cable is designed for measuring temperature, relative humidity and atmospheric pressure.…


Comet T7311 temperature, humidity and atmospheric pressure sensor with RS232 output
usually in stock
from
307,76 €
excl. VAT
from 372,39 € incl. VAT
| Temperature range (max) | 105 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
The Comet T7311 sensor with external probe on the cable is designed for measuring temperature, relative humidity and atmospheric pressure.…

Comet T0310 temperature sensor with RS232 output
In stock
138,28 €
excl. VAT
167,32 € incl. VAT
| Temperature range (max) | 80 °C |
|---|---|
| Temperature range (min) | -30 °C |
The Comet T0310 sensor is designed to measure room temperature using a built-in sensor. The measured values are displayed on the LCD…


Comet T3419P temperature and humidity sensor with 25bar pressure probe and RS485 output
In stock
from
388,18 €
excl. VAT
from 469,70 € incl. VAT
| Temperature range (max) | 105 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
The Comet T3419P sensor is designed to measure temperature and relative humidity of pressurized air up to 25 bar using an external probe…


Comet T3419 temperature and humidity sensor with RS485 output
In stock
from
280,67 €
excl. VAT
from 339,61 € incl. VAT
| Temperature range (max) | 105 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
The Comet T3419 sensor is designed to measure temperature and relative humidity using an external probe on a cable. The instrument comes…

Comet T3417 temperature and humidity sensor with RS485 output
Upon request
280,26 €
excl. VAT
339,11 € incl. VAT
| Temperature range (max) | 125 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
The Comet T3417 is designed to measure temperature and relative humidity using a built-in sensor, the stem length is 700mm. It can further…


Comet T3413D temperature and humidity sensor with RS485 output
Upon request
274,52 €
excl. VAT
332,17 € incl. VAT
| Temperature range (max) | 125 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
The Comet T3413D sensor is designed to measure temperature and relative humidity in the air duct using a built-in sensor, the length of the…

Comet T3413 temperature and humidity sensor with RS485 output
Upon request
263,85 €
excl. VAT
319,26 € incl. VAT
| Temperature range (max) | 125 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
The Comet T3413 sensor is designed to measure temperature and relative humidity in the air duct using a built-in sensor, the length of the…

Comet T3313 temperature and humidity sensor with RS232 output
Upon request
207,22 €
excl. VAT
250,74 € incl. VAT
| Temperature range (max) | 125 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
The Comet T3313 sensor is designed to measure temperature and relative humidity in the air duct using a built-in sensor, the length of the…

Comet T7310 temperature, humidity and atmospheric pressure sensor with RS232 output
Immediately in stock
261,10 €
excl. VAT
290,11 €
315,93 € incl. VAT
| Temperature range (max) | 80 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
The Comet T7310 sensor is designed to measure temperature, relative humidity and atmospheric pressure using a built-in sensor. It can also…

