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COMET W7710 – WiFi Sensor for Temperature, Humidity, and Barometric Pressure

COMET W7710 WiFi Temperature, Humidity and Pressure Sensor 

The COMET W7710 is a smart WiFi sensor for temperature, relative humidity and barometric pressure with an integrated probe – the perfect solution for modern, wireless environmental monitoring in buildings, warehouses, server rooms, museums, greenhouses, or anywhere existing WiFi infrastructure can be used. Simply place it, connect to WiFi, and the W7710 automatically transmits the measurements to the COMET Cloud (from 5‑minute intervals) or to your own system.

This maintenance‑free sensor precisely measures temperature (−20 to +60 °C), humidity (0–95 % RH) and barometric pressure, and calculates the dew point. When measurement limits are exceeded, it alerts by email, acoustic signal or visually via the LCD display. The values can also be viewed on integrated web pages or forwarded to third‑party systems via Modbus TCP, SNMP, JSON or XML.

With the free COMET Cloud (3 months free trial, then 1 credit per year), you get a full monitoring solution without your own server: charts, exports, alarms, and remote access via app or browser. Alternately, integrate the sensor directly into your SCADA, BMS, or IoT platform.

The rugged housing, large LCD display and simple setup via WPS or web interface make the W7710 the ideal entry‑level device for wireless measurement technology – made by COMET.

Why the COMET W7710 is the smart choice for wireless 3‑in‑1 monitoring:

  • Integrated probe – ready to use immediately
  • WiFi connection – uses existing infrastructure
  • COMET Cloud included – 3 months free, low‑cost credit afterwards
  • Protocols: Modbus TCP, SNMP, JSON, XML – open to third‑party systems
  • Email alarm + acoustic/visual alerts – instant notification
  • Large LCD display – local readout
  • High accuracy – Temp. ±0.4 °C | Humidity ±1.8 % RH
  • Dew point calculation – available instantly
  • Easy setup – via WPS or web interface
  • 3‑year warranty

Technical Data:

  • Temperature range: −20 to +60 °C (±0.4 °C)
  • Humidity: 0 to 95 % RH (±1.8 % RH from 0–90 % at 23 °C)
  • Dew point: −60 to +60 °C (±1.5 °C for T < 25 °C and RH > 30 %)
  • Resolution: 0.1 °C / 0.1 % RH
  • WiFi: 2.4 GHz, IEEE 802.11 b/g/n
  • Cloud interval: from 5 minutes
  • Protocols: Modbus TCP, SNMP v1, JSON, XML, HTTP GET
  • Alarm: Email, acoustic, visual (display)
  • Display: LCD with backlight
  • Power supply: Adapter (included) or Power over Ethernet (optional)
  • Protection rating: IP30
  • Warranty: 3 years

Perfect for:

  • Smart buildings and building automation
  • Server rooms and data centers
  • Museums, archives and libraries
  • Warehouses and logistics
  • Greenhouses and agriculture
  • Offices, schools and kindergartens
  • Pharmaceutical storage and cold rooms
  • Private use (apartments, holiday homes)

Setup – done in minutes

Connect the sensor, join WiFi (via WPS or app), activate COMET Cloud – that’s it. The measurements are automatically transmitted to the Cloud or your system.

Summary:

  • WiFi‑enabled sensors measure temperature, relative humidity and barometric pressure using the integrated probe (included)
  • Communication with the sensor is wireless via WiFi
  • The device transmits measured values to the COMET Cloud (at least every 5 minutes) or to a COMET database
  • Data can be viewed on integrated web pages and sent to third‑party systems via Modbus TCP, SNMP, JSON and XML
  • Measured values are displayed on the LCD screen
  • The device continuously monitors alarm thresholds and, if exceeded, can send an email or trigger acoustic and visual alerts
  • Two alarm thresholds are supported per measurement channel

Scope of Supply:

  • W7710
  • User manual
  • Traceable calibration certificate
  • Temperature and humidity probe
  • Power adapter
  • USB‑C cable
  • Full version of COMET Vision analysis software (free)
  • COMET Cloud for 3 months
Datasheets
Datasheet 1

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Datasheet 1 (3.55 MB)
Datasheet 2

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Datasheet 2 (127.59 KB)

WiFi Temperature, Humidity and Air Pressure Sensor with Integrated Probe

Measured Values

  • Temperature
  • Relative humidity
  • Calculated values (dew point, etc.)
  • Atmospheric pressure

Temperature Sensor

  • Measuring range: −20 to +60 °C
  • Accuracy: ±0.4 °C
  • Resolution: 0.1 °C

Humidity Sensor

  • Measuring range: 0 to 95 % RH
  • Accuracy: ±1.8 % RH (from 0 to 90 % at 23 °C)
  • Resolution: 0.1 % RH

Dew Point Sensor

  • Measuring range: −60 to +60 °C
  • Accuracy: ±1.5 °C at ambient conditions T < 25 °C and RH > 30 %
  • Resolution: 0.1 °C

Air Pressure Sensor

  • Measuring range: 600 to 1100 hPa
  • Accuracy: ±1.3 hPa at 23 °C
  • Resolution: 0.1 hPa

General Technical Data

  • Operating temperature: −30 to +60 °C
  • Channels: sensors for temperature, humidity and air pressure
  • Measurement interval: 1 s
  • Transmission interval to COMET Cloud: adjustable from 5 minutes to 12 hours
  • Communication protocols: HTTP(S), SMTP, Modbus TCP, SNMP (v1, v2c, v3), HTTP POST, HTTP GET (JSON, XML)
  • Alarm signaling: email, acoustic, LED
  • Power supply: 5.0–5.4 V DC; consumption 150 mA (max. 500 mA); USB‑C connector
  • Wireless: 2.4 GHz; max. transmission power 18 dBm; standard IEEE 802.11 b/g/n
  • WiFi security: Open, WEP, WPA, WPA2, WPA2‑PMF, WPA3, WPA2‑EAP
  • Protection rating: IP30
  • Dimensions: 156 × 93 × 32 mm
  • Weight: 125 g
  • Warranty: 3 years
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Compatible replacement probe

COMET DIGIS/E-1 – Digital Temperature/Humidity Probe -10 to +60 °C, ELKA Connector
COMET DIGIS/E-1 – Digital Temperature/Humidity Probe -10 to +60 °C, ELKA Connector
Select cable length: Cable length 1 meter
COMET DIGIS/E-1 Digital Temperature and Humidity Probe -10 to +60 °C with ELKA connector and fast response time.
Product number: DIGIS/E-1

Regular price: €87.00
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Compatible communication cable

USB-C cable, 1 meter
USB-C cable, 1 meter
Communication between PC and COMET data loggers
Product number: MP053

Regular price: €19.00
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Compatible mounting brackets

Wall mount with lock to prevent unauthorized removal
Wall mount with lock to prevent unauthorized removal
Wall mount with lock
Product number: LP100

Regular price: €29.00
Mounting bracket for the "U" data logger on magnetic surfaces
Mounting bracket for the "U" data logger on magnetic surfaces
Mounting bracket for attaching the data logger
Product number: LP102

Regular price: €14.00

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

Marsweg 17

48163 Münster
Deutschland

Fon: +49 - 2501 - 9 78 58 80

Email: info@didactum-security.de

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