dataloggers, thermometers, hygrometers...
English Česky Africa China Español Français Magyar Polski Sweden USA

WiFi temperature and relative humidity sensor for two external probes

Sensors with WiFi interface are designed to measure the temperature and relative humidity with a two connected probes (optional accessories).

Communication with the sensor is done via a wireless WiFi network. The device allows sending measured values ​​to the online
COMET Cloud or COMET Database storage with the shortest interval of 5 minutes. The values ​​can be displayed on integrated web pages and provided to third party systems using the Modbus TCP protocol. The measured values ​​are displayed on the LCD display.

The device continuously evaluates the alarm limits of the measured values ​​and in case of exceeding them, it can send an e-mail or inform by means of acoustic or optical signaling. Two alarm limits are supported for each measurement channel.

The main advantage of sensors with WiFi interface is the simplicity of deployment in places where WiFi infrastructure is already available. Just place the sensor in the desired location and connect it to the WiFi network. WiFi sensor in conjunction with
COMET Cloud or COMET Database offers a comprehensive solution for monitoring and alarm without the need for a server solution on the part of the user. If necessary, however, the sensor can also be connected to third-party systems, either using the Modbus TCP protocol or by sending JSON data to an http server.
Thanks to these unique features, the WiFi sensor will find applications and a wide range of application areas.

  • code
    W3721
  • Warranty
    3 years
  • $550

Technical data

Measured value

Temperature
Relative humidity
Counted values (dew point…)

TEMPERATURE SENSOR

Measuring range according to the connected probe Digi/E
Accuracy according to the connected probe Digi/E
Resolution 0.1 °C

HUMIDITY SENSOR

Measuring range according to the connected probe Digi/E
Accuracy according to the connected probe Digi/E
Resolution 0.1% RH

DEW POINT

Measuring range according to the connected probe Digi/E
Accuracy according to the connected probe Digi/E
Resolution according to the connected probe Digi/E

GENERAL TECHNICAL DATA

Operating temperature -30 to +60 °C
Channels 2x connectable temperature+humidity probe, ELKA connector
Measuring interval 1 s
Sending interval to COMET Cloud adjustable 5 minutes to 12 hours
Communication protocols HTTP(S), SMTP, ModbusTCP, SNMP (v1, v2c, v3), HTTP POST, HTTP GET (JSON, XML)
Alarm signalization e-mail, acoustic, LED
Power 5.0 to 5.4 VDC; consumption 150 mA (max. 500 mA); USB-C connector
Radio section frequency: 2.4 GHz; max. transmit power: 18 dBm; standard: IEEE 802.11 b/g/n
WiFi security Open, WEP, WPA, WPA2, WPA2-PMF, WPA3, WPA2-EAP
Protection class IP30
Dimensions 81 x 93 x 32 mm
Weight 115 g
Warranty 3 years

Optional accessories and download

Ultra thin digital temperature/humidity probe

Ultra thin digital temperature/humidity probe

Temperature range: -10 to 60°C
code DIGIH/E-1
Price $200
In stock 5 pcs
Ultra thin digital temperature/humidity probe, cable 2 m

Ultra thin digital temperature/humidity probe, cable 2 m

Temperature range: -10 to 60°C
code DIGIH/E-2
Price On request
In stock 2 pcs
Ultra thin digital temperature/humidity probe, cable 5 m

Ultra thin digital temperature/humidity probe, cable 5 m

Temperature range: -10 to 60°C
code DIGIH/E-5
Price $238
In stock 5 pcs
Digital temperature/humidity probe, cable 1 m

Digital temperature/humidity probe, cable 1 m

Temperature range: -30 to 105°C
code DIGIL/E-1
Price $186
In stock 10 pcs
Digital temperature/humidity probe, cable 10 m

Digital temperature/humidity probe, cable 10 m

Temperature range: -30 to 105°C
code DIGIL/E-10
Price $264
In stock 7 pcs
Digital temperature/humidity probe, cable 15 m

Digital temperature/humidity probe, cable 15 m

Temperature range: -30 to 105°C
code DIGIL/E-15
Price $306
In stock 1 pcs
Digital temperature/humidity probe, cable 2 m

Digital temperature/humidity probe, cable 2 m

Temperature range: -30 to 105°C
code DIGIL/E-2
Price On request
In stock 4 pcs
Digital temperature/humidity probe, cable 5 m

Digital temperature/humidity probe, cable 5 m

Temperature range: -30 to 105°C
code DIGIL/E-5
Price $220
In stock 9 pcs
Digital temperature/humidity probe

Digital temperature/humidity probe

Temperature range: -20 to 80°C
code DIGIS/E
Price On request
In stock 93 pcs
Digital temperature/humidity probe, cable 1 m

Digital temperature/humidity probe, cable 1 m

Temperature range: -10 to 60°C
code DIGIS/E-1
Price $162
In stock 1 pcs
Digital temperature/humidity probe, cable 10 m

Digital temperature/humidity probe, cable 10 m

Temperature range: -10 to 60°C
code DIGIS/E-10
Price On request
In stock on request
Digital temperature/humidity probe, cable 15 m

Digital temperature/humidity probe, cable 15 m

Temperature range: -10 to 60°C
code DIGIS/E-15
Price $282
In stock on request
Digital temperature/humidity probe, cable 2 m

Digital temperature/humidity probe, cable 2 m

Temperature range: -10 to 60°C
code DIGIS/E-2
Price $170
In stock 9 pcs
Digital temperature/humidity probe, cable 5 m

Digital temperature/humidity probe, cable 5 m

Temperature range: -10 to 60°C
code DIGIS/E-5
Price $196
In stock 7 pcs

USB-C cable, 1 meter

USB-C cable, 1 meter

code MP053
Price $22
In stock on request

wall holder for datalogger - kopie

wall holder for datalogger - kopie

code LP100
Price $38
In stock 81 pcs
Holder for mounting the Datalogger "U" on magnetic surfaces

Holder for mounting the Datalogger "U" on magnetic surfaces

code LP102
Price $12
In stock 11 pcs

COMET Cloud

COMET Cloud

code cloud
Price On request
In stock yes

code cloud_app
Database Viewer for Comet Database

Database Viewer for Comet Database

code DBV
Price $138
In stock yes

Software

download-icon Comet Database One Click Installer (21.1-II)
487.31 MB
download-icon COMET Cloud Lite - Android (Google Play)
download-icon COMET Cloud Lite - iOS (App Store)

Others

download-icon Terms and Conditions COMET System s.r.o.
133.12 KB

Manuals

download-icon Instruction Manual
3.55 MB
download-icon Quick Start Manual
1.40 MB
download-icon Safety Information
274.30 KB
download-icon Calibration manual
457.30 KB
download-icon Declaration of Conformity
59.42 KB
download-icon MIB
575.32 KB

Firmware and SDK

download-icon Firmware version 10-0-6-0 (2022-04-25)
2.12 MB
download-icon Software development kit (SDK)
22.49 KB

Catalogs

download-icon CATALOG - WiFi Sensors
3.55 MB

Related products

COMET Cloud

COMET Cloud

code cloud
Price On request
In stock yes
COMET Database

COMET Database

code CDB
Price $888
In stock yes
WiFi temperature sensor with integrated probe

WiFi temperature sensor with integrated probe

code W0710
Price $568
In stock 12 pcs
WiFi temperature sensor for one external Pt1000 probe

WiFi temperature sensor for one external Pt1000 probe

code W0711
Price $534
In stock 4 pcs
WiFi temperature sensor for 4 external Pt1000 probes

WiFi temperature sensor for 4 external Pt1000 probes

code W0741
Price $558
In stock on request
WiFi temperature and relative humidity sensor for external probe

WiFi temperature and relative humidity sensor for external probe

code W3711
Price $516
In stock 9 pcs
WiFi temperature, relative humidity, CO2 and atmospheric pressure sensor with integrated probe

WiFi temperature, relative humidity, CO2 and atmospheric pressure sensor with integrated probe

code W4710
Price $1 052
In stock 17 pcs
WiFi CO2 sensor with integrated probe

WiFi CO2 sensor with integrated probe

code W5714
Price On request
In stock 32 pcs
WiFi temperature, relative humidity and atmospheric pressure sensor with integrated probe

WiFi temperature, relative humidity and atmospheric pressure sensor with integrated probe

code W7710
Price $796
In stock 18 pcs