W0741 WiFi Temperature Sensor

Reference: W0741

Condition: New product

W0741 WiFi Temperature Sensor for 4 External Pt1000 Probes

Brand: Comet System

The W0741 WiFi Temperature Sensor is designed to accurately monitor temperature using up to four external Pt1000 probes (sold separately). This advanced solution ensures wireless temperature monitoring across a wide range of professional and industrial environments.

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Reliable Wireless Temperature Monitoring

Featuring seamless WiFi connectivity, the sensor transmits measured data directly to the COMET Cloud platform (with a minimum interval of 5 minutes) or to a local COMET Database. Data can be accessed via the integrated web interface and shared with third-party systems through Modbus TCP, SNMP, JSON, and XML protocols.

Smart Alarm Management

The device continuously monitors alarm thresholds, supporting two configurable limits per channel. If limits are exceeded, it can trigger alerts via email, acoustic signal, or LED indication, ensuring immediate action in critical environments.

Effortless Setup & Flexible Integration

Easy to install, the sensor only needs to be connected to an existing WiFi network. With COMET Cloud, there's no need for local servers—offering a complete standalone monitoring and alerting solution. For custom integrations, it supports HTTP POST/GET requests with JSON and XML payloads, enabling direct compatibility with external systems.

Typical Applications

Pharmaceutical and food storage
Environmental and laboratory monitoring
HVAC and industrial control systems
Cold chain and refrigerated transport
Temperature assessment of Legionella bacteria contamination risk

Key Technical Features of the W0741

Below is a responsive table summarizing the key specifications of this powerful wireless sensor.

Category	Specification
Measured Value	Temperature (via external Pt1000 probes)
Measurement Range	-90 to +260 °C
Accuracy	±0.2 °C (-90 to +100 °C); ±0.2% of reading (+100 to +260 °C)
Resolution	0.1 °C
Operating Temperature	-30 to +60 °C
Measurement Channels	4x external Pt1000 probes (CINCH connectors)
Measurement Interval	1 second
Cloud Sending Interval	Configurable: 5 minutes to 12 hours
Communication Protocols	HTTP(S), SMTP, Modbus TCP, SNMP (v1, v2c, v3), HTTP POST/GET (JSON, XML)
Alarm Signaling	Email, acoustic buzzer, LED
Power Supply	5.0 to 5.4 VDC (USB-C); Consumption: 150 mA (max. 500 mA)
Radio Frequency	2.4 GHz; Max. TX power: 18 dBm; IEEE 802.11 b/g/n
WiFi Security	Open, WEP, WPA, WPA2, WPA2-PMF, WPA3, WPA2-EAP
Ingress Protection	IP30
Dimensions	81 x 93 x 32 mm
Weight	115 g
Warranty	3 years

Order Your W0741 WiFi Sensor Today

Ensure accurate temperature control in critical environments with the W0741 WiFi Temperature Sensor. Designed for professionals who demand precision, reliability, and real-time connectivity. Contact us for more information or order online now.