Product / Service Details


Principle of Operation
Netvox Wireless Door/Window Sensor is a magnetic contact sensor available to detect the state of doors and windows. R311A will transmit information and data to the server from the opening and closing of doors,
windows, gates, etc. based on the desired behavior. The low battery consumption device is long lasting
which ensures optimum usage.
Thanks to its small size, R311A can be installed everywhere. It is wireless so it takes up minimal floor
space. The transmission is directed to a central center that can be programmed to trigger an alarm
system. The versatile wireless sensor is reliable and suitable for various applications.

Example Applications
• Commercial property door and window access
• Residential property door and window access
• Bank owned for closure properties access monitoring
• Restricted area monitoring
• IT server rooms and closets
• Freezer and cooler doors
• Shipping cargo bay door monitoring
• Garage door monitoring

LoRaWAN Class A compatible
Frequency Hopping Spread Spectrum (FHSS)
Improved interference immunity
Improved power management for longer battery life
Encrypt-RF™ Security (Diffie-Hellman Key Exchange + AES-128 CBC for sensor data messages)
Battery Life*:
Please refer to web:
At this website, users can find battery life time for various models at different configurations
Available third-party platform: Actility/ThingPark, TTN, MyDevices/Cayenne
* Battery life is determined by sensor reporting frequency and other variables

Technical Parameters:
Input Power: 2 x 3.0V CR2450 button batteries
Working Voltage: DC 2.4V~3V
Standby Current: 12uA/3.0V
Transmitting Current (max): 120mA/3.0V
Receiving Current (max): 11mA @3.0V
Low Voltage Threshold : 2.4V
Voltage Measurement Accuracy: ±0.1V
Main Body Dimension: 57mm x 35mm x 15mm
Magnet Dimension: 43mm x 13mm x 12mm
Weight: 43.8g
Operating Temperature: -20℃ ~ 55℃
Environment Humidity Range: <90% RH (No condensation)
Storage Temperature: -40℃ ~ 85℃

Vertical Markets
Smart Environment|Smart Homes / Consumer|Smart Industry / Industrial IoT|Transportation / Logistics / Supply Chain|Smart Agriculture / Farming|Smart Buildings / Facilities Management|Smart Cities
Regional Markets
Europe|Middle East|North America|South America|Worldwide|Africa|Asia/South Pacific
Regulatory Certifications
FCC (United States)|RED (Europe)|TELEC (Japan)

Product / Service links

Service URL(s):


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User Manual
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