COMET - Advanced features - Relative humidity

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 U3120 temperature and humidity data logger
Rating value is 4 of 5
Immediately in stock
235,95 €
excl. VAT
285,50 € 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…


Low cost temperature and humidity sensor Comet P3110E, 4-20mA output
Immediately in stock
149,77 €
excl. VAT
181,22 € incl. VAT
| Temperature range (max) | 80 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
The Comet T3110E is a low cost room temperature and relative humidity sensor for outdoor and indoor use. The instrument is designed to…

Temperature and humidity data logger Comet U3121 - ELKA
Immediately in stock
210,50 €
excl. VAT
254,71 € 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 |
Datalogger Comet U3121 has one input for external temperature and humidity sensor with ELKA connector. The operation of the data logger is…


Thermometer, hygrometer Comet P8541 with Ethernet output
Immediately in stock
161,26 €
excl. VAT
195,12 € incl. VAT
| Temperature range (max) | 105 °C |
|---|---|
| Temperature range (min) | -55 °C |
| Humidity measurement range | Podle zvolené sondy |
The Comet P8541 thermometer has four channels for connecting temperature and humidity digital probes. The measured values can be easily…

WiFi temperature and humidity sensor Comet W3710
Immediately in stock
349,61 €
excl. VAT
423,03 € 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…


Thermometer with hygrometer Comet T3610 PoE with Ethernet output
Immediately in stock
342,63 €
excl. VAT
414,58 € incl. VAT
| Temperature range (max) | 60 °C |
|---|---|
| Temperature range (min) | -20 °C |
| Humidity measurement range | 0 to100% |
The Comet T3610 thermometer with hygrometer can measure not only temperature and humidity but also dew point and calculated quantities such…


Thermometer, hygrometer Comet P8611 PoE with Ethernet output
Immediately in stock
169,88 €
excl. VAT
205,55 € incl. VAT
| Temperature range (max) | 105 °C |
|---|---|
| Temperature range (min) | -55 °C |
| Humidity measurement range | Podle zvolené sondy |
The Comet P8611 is an Ethernet sensor with one cinch connector for connecting a temperature or temperature and humidity probe (only for 2…


Datalogger Comet U3430 with built-in temperature, humidity and CO2 sensors
In stock
385,31 €
excl. VAT
466,23 € incl. VAT
| Temperature range (max) | 60 °C |
|---|---|
| Temperature range (min) | -20 °C |
| Humidity measurement range | 0 to100% |
| CO2 measurement range | 0 to 5000 ppm |
The datalogger is designed to record temperature, humidity and CO2. When the set limits are exceeded, alarms are indicated by LED, LCD and…

Comet T3110 temperature and humidity sensor with 4-20mA output
Immediately in stock
222,81 €
excl. VAT
269,60 € incl. VAT
| Temperature range (max) | 80 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
Comet T3110 is a room temperature and relative humidity sensor with 4-20mA current output. It can further convert the measured temperature…


Comet U3120 IoT temperature and humidity datalogger
Rating value is 5 of 5
Immediately in stock
from
525,24 €
excl. VAT
from 635,54 € 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…


Wireless thermometer with hygrometer Comet W3810 Sigfox IoT
Immediately in stock
196,96 €
excl. VAT
238,32 € incl. VAT
| Temperature range (max) | 60 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
The Comet W3810 Wireless Thermometer and Hygrometer works using the Sigfox radio network to transmit temperature and humidity measurements…

WiFi temperature and humidity sensor Comet W3711
Immediately in stock
270,41 €
excl. VAT
327,20 € 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,…


Datalogger Comet U4440 for measuring temperature, humidity, CO2 and atmospheric pressure
In stock
458,35 €
excl. VAT
554,60 € incl. VAT
| Temperature range (max) | 60 °C |
|---|---|
| Temperature range (min) | -20 °C |
| Humidity measurement range | 0 to100% |
| CO2 measurement range | 0 to 5000 ppm |
The datalogger is designed to record temperature, humidity, atmospheric pressure and CO2. When the set limits are exceeded, alarms are…


Comet T3111 temperature and humidity sensor with 4-20mA output
usually in stock
from
240,87 €
excl. VAT
from 291,45 € incl. VAT
| Temperature range (max) | 105 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
The Comet T3111 sensor is designed to measure temperature and humidity using an external probe. The instrument comes standard with a T+RV…


Digital thermometer, hygrometer with recording Comet D3120
Immediately in stock
265,90 €
excl. VAT
321,74 € 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…

Datalogger Comet U3631 temperature, humidity and with connector for external temperature probe
Immediately in stock
278,62 €
excl. VAT
337,13 € 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 D3631 thermometer and hygrometer with recording
In stock
281,90 €
excl. VAT
341,10 € 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…


WiFi temperature and relative humidity sensor Comet W3745
Immediately in stock
370,54 €
excl. VAT
448,35 € incl. VAT
| Ext. temperature range sensors (max) | 400 °C, závisí na typu sondy |
|---|---|
| Ext. temperature range sensors (min) | -190 °C, závisí na typu sondy |
| Humidity measurement range | 0 to100%, závisí na typu připojené sondy |
The Comet W3745 WiFi sensor is designed to measure temperature and relative humidity from one external combination probe with ELKA…


Web Sensor Comet T3511 temperature and humidity sensor with Ethernet output
usually in stock
from
312,27 €
excl. VAT
from 377,85 € incl. VAT
| Temperature range (max) | 105 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
Web Sensor Comet T3511 with external temperature and humidity probe. It communicates via Ethernet and can further convert the measured…

Comet T3117 temperature and humidity sensor with 4-20mA output
In stock
248,26 €
excl. VAT
300,39 € incl. VAT
| Temperature range (max) | 125 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
The Comet T3117 sensor is designed to measure temperature and humidity, stem length 700mm. It can further convert the measured temperature…

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 C4141 thermometer, hygrometer and barometer with external probe on cable
Immediately in stock
from
289,29 €
excl. VAT
from 350,04 € incl. VAT
| Temperature range (max) | 105 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 5 to 100% |
The Comet C4141 is designed to measure temperature, relative humidity and atmospheric pressure (it also measures the pressure tendency over…


Thermometer, hygrometer and barometer Comet D4130
In stock
354,94 €
excl. VAT
429,48 € 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…


Thermometer, hygrometer Comet C3633 with probe for surface temperature measurement
Immediately in stock
264,67 €
excl. VAT
320,25 € incl. VAT
| Temperature range (max) | 60 °C |
|---|---|
| Temperature range (min) | -10 °C |
| Humidity measurement range | 5 to 95 % |
The Comet C3633 is a high-precision thermometer and hygrometer with acoustic and optical alarm of measured values. It is designed to…


Thermometer, hygrometer Comet D3121 with external probe on cable
usually in stock
from
279,85 €
excl. VAT
from 338,62 € 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 U4130 temperature, humidity and pressure data logger
Immediately in stock
310,22 €
excl. VAT
375,37 € 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.…

Comet T3113 temperature and humidity sensor with 4-20mA output
Upon request
239,23 €
excl. VAT
289,47 € incl. VAT
| Temperature range (max) | 125 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
The Comet T3113 sensor is designed to measure temperature and humidity in air ducts, stem length 150mm. It can further convert the measured…

Indoor temperature and humidity sensor Comet T3118, 4-20mA output
In stock
178,09 €
excl. VAT
215,49 € incl. VAT
| Temperature range (max) | 50 °C |
|---|---|
| Temperature range (min) | -10 °C |
| Humidity measurement range | 5 to 95 % |
The Comet T3118 indoor sensor is designed for measuring indoor temperature and relative humidity and for energy management in buildings. It…


Temperature, humidity, CO2 multilogger with barometer Comet M1323
Upon request
954,86 €
excl. VAT
1 155,38 € 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 T0213D temperature and humidity sensor with 0-10V output
In stock
234,71 €
excl. VAT
284 € incl. VAT
| Temperature range (max) | 125 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
The Comet T0213D sensor is designed to measure temperature and relative humidity in the air duct using a built-in sensor, the length of the…

Comet T0213 temperature and humidity sensor with 0-10V output
In stock
234,71 €
excl. VAT
284 € incl. VAT
| Temperature range (max) | 125 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
The Comet T0213 sensor is designed to measure temperature and relative humidity in the air duct using a built-in sensor, the length of the…


Comet H7530 temperature, humidity and pressure sensor, Ethernet output and two relays
In stock
466,56 €
excl. VAT
564,54 € 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 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…


Web Sensor Comet P8511 temperature, humidity with Ethernet output
In stock
142,39 €
excl. VAT
172,29 € incl. VAT
| Temperature range (max) | 105 °C |
|---|---|
| Temperature range (min) | -55 °C |
Web Sensor Comet P8511 allows you to connect one external digital probe equipped with a CINCH connector and measure a maximum of 2…


Comet D4141 thermometer, hygrometer and barometer with external probe on cable
usually in stock
from
370,54 €
excl. VAT
from 448,35 € 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…


Web Sensor Comet T7610 PoE temperature, humidity and pressure sensor with Ethernet output
Upon request
457,12 €
excl. VAT
553,12 € incl. VAT
| Temperature range (max) | 60 °C |
|---|---|
| Temperature range (min) | -20 °C |
| Humidity measurement range | 0 to100% |
Web Sensor Comet T7610 temperature, humidity and atmospheric pressure. It communicates via an Ethernet network that can be powered at the…

WiFi temperature, humidity, pressure and CO2 sensor Comet W4710
In stock
550,27 €
excl. VAT
665,83 € 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
Upon request
758,72 €
excl. VAT
918,05 € 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…


Web Sensor Comet T7510 temperature, humidity and pressure with Ethernet output
In stock
415,26 €
excl. VAT
502,46 € incl. VAT
| Temperature range (max) | 80 °C |
|---|---|
| Temperature range (min) | -30 °C |
| Humidity measurement range | 0 to100% |
Web Sensor Comet T7510 with built-in temperature, relative humidity and atmospheric pressure sensors. It communicates via Ethernet and can…


Comet U4440 IoT temperature, humidity, CO2 and pressure data logger
usually in stock
from
749,28 €
excl. VAT
from 906,63 € incl. VAT
| Temperature range (max) | 60 °C |
|---|---|
| Temperature range (min) | -20 °C |
| Humidity measurement range | 0 to100% |
| CO2 measurement range | 5000 ppm, 0 to 5000 ppm |
Comet U4440M and U4440G are IoT wireless data loggers with built-in GSM modem. After purchasing a SIM card, immediate connection to the…


Datalogger Comet U3631 IoT temperature, humidity and external probe connector
usually in stock
from
521,95 €
excl. VAT
from 631,56 € 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
usually in stock
from
501,03 €
excl. VAT
from 606,25 € 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 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…

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…

