NETVOX Wireless Asset Sensor R311D, The device is a simple positioning function (which can detect the position status of the device), periodically reports RSSI and SNR information to the gateway for processing and can locate the position status of the device according to the reported RSSI and SNR information, and adopts SX1276 wireless communication module

Example Applications

The device is universal an can be used for many applications. Ideally suited for a wide range of applications such as monitor the fixed asset location and avoid the asset being moved out from location. For example:

Schools / Classroom / Reading room / Laboratory / Offices PC room equipment

Features of NETVOX Sensors

LoRaWANTM 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: http://www.netvox.com.tw/electric/electric_calc.html

At this website, users can find battery life time for varier models at different
Over-the-air updates (future)
Third-Party online wireless sensor monitoring and notification system to configure sensors, view data and set alerts via SMS text and email (optional)
Available third-party platform: Actility/ThingPark, TTN, MyDevices/Cayenne

* Actual range may vary depending on environment.

* Battery life is determined by sensor reporting frequency and other variables

Technical Specifications

Input Power	2pcs 3.0V CR2450 button battery
Working Voltage	DC 2.4V～3V
Standby Current	16uA/3.0V
Tx Current	120mA/3.0V
Rx Current	11mA @3.0V

Voltage Threshold	2.4V
Battery Voltage measurement accuracy	±0.1V

Frequency

Tx Power	19dBm±1dBm
Rx Sensitivity	-136dBm (LoRa，Spreading Factor=12，Bit Rate=293bps ) -121dBm (FSK,Frequency deviation=5kHz, Bit Rate=1.2kbps)
Antenna Type	Build-in antenna
Communication Range	Build-in antenna
Data Transfer Rate	0.3kbps～50kbps
Spread Technique	LoRa/FSK
Available Frequency	EU863-870，US902-928，AU915-928， KR920-923，AS923，CN470-510 Configured before shipment

Physical

Main Body Dimension	57mm x 35mm x 15mm
Weight	48.39g
Operating Temperature	-20℃ ～ 55℃
Environment Humidity Range	<90% RH (No condensation)
Storage Temperature	-40℃ ～ 85℃

Datasheet:

R311D.pdf

User manual:

R311D_UG.pdf

Battery Calculator:

Netvox Battery Calculator

Netvox LoRa Command Resolver:

LoRa Command Resolver

R311D - Netvox LoRaWan Wireless Asset Sensor