W3745 WiFi temperature and relative humidity sensor for 4 COMET outdoor sensors

Description

W3745sensors with WiFi interface are designed to measure temperature (up to 3 connected Pt1000 sensors – optional ) and relative humidity (one sensor – optional). Communication with the sensor iswireless via WiFi.

Enables wireless sending measured values to the online cloud
COMET Cloud
(at the shortest interval 5 minutes) or v data COMET database.

The results can be monitored on integrated websites.

Third parties also have access using ModbusTCP, SNMP, JSON and XML protocols .

The measurements are displayed on the LCD screen.

The device constantly checks the alarm limits of the measured values. V case exceed them, it shall send an alert to by email or by an acoustic or optical signal. Two alarm limits are supported for each measurement channel.

The main advantage of WiFi-enabled sensors is that they can be easily installed wherever there is at availableWiFi infrastructure is available. The sensor is place it in the desired location , then connectit to your WiFi network. In combination with COMET Cloud , it offers a complete monitoring and alarm solution, without theuser needing a server solution. If required, the sensor can also be connected to third-party systems with uModbusTCPconsumption, SNMP or by sending JSON data to an http server. The sensor allows the provision of values via XML and JSONusing HTTP GET protocols.

 

Benefits

• easy installation
• WiFi sensor
• LCD display
• display of measured values in table or graph form
• comparing measured values from multiple sensors over a single time period
• sending warnings in the event of exceedances

 

Features of the W3745

Temperature sensor

• measuring range: depending on the connected Digi/E probe
• accuracy: depending on the connected Digi/E probe
• resolution: 0.1 °C

Moisture sensor

• measuring range: depending on the connected Digi/E probe
• accuracy: depending on the connected Digi/E probe
• resolution: 0.1 % RH

Rosišče (dew point)

• measuring range: depending on the connected Digi/E probe
• accuracy: depending on the connected Digi/E probe
• resolution: depending on the connected Digi/E probe

Pt1000 external temperature sensor

• measuring range: -90 to +260 °C (optional -150 … +600 °C)
• Accuracy: ±0.2 °C (-90 … +100 °C); ±0.2 % (+100 … +260 °C)
• resolution: 0.1 °C

 

General technical data W3745

• ambient temperature: -30 … +60 °C
• Entrances:
  • connector for 1 temperature and humidity probe, ELKA connector
  • connector for up to 3 temperature sensors (Pt1000), CINCH connector
• possible to set the frequency of the sending interval in COMET Cloud: interval from 5 min to 12 hours
• measuring interval: 1 s
• communication protocols: HTTP(S), SMTP, ModbusTCP, SNMP (v1, v2c, v3), HTTP POST, HTTP GET (JSON, XML)
• alarm signal: e-mail, acoustic, LED
• Power: 5.0 – 5.4 V DC; consumption 150 mA (max 500 mA); USB-C connector
• radio frequency: 2.4 GHz; max. Transmit power: 18 dBm, standard: IEEE 802.11 b/g/n
• Protection class: IP30
• dimensions: 133 mm x 93 mm x 32 mm
• weight: 117 g
• Warranty: 3 years

 

Scope of delivery

• W3745
• Directions
• traceable calibration certificate
• power supply
• USB-C cable
• COMET Cloud for 3 months

 

Other designations: W 3745, W-3745, W_3745