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R718A Temperature and Humidity Sensor for Low Temperature Environment

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R718A is mainly used to measure the temperature and humidity in low temperature environment such as a freezer. It collects data and sends it to the gateway through LoRaWAN™. It is fully compatible with LoRaWAN™ protocol (Class A).
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R718A is mainly used to measure the temperature and humidity in low temperature environment such as a freezer. It collects data and sends it to the gateway through LoRaWAN™. It is fully compatible with LoRaWAN™ protocol (Class A).

•Wireless range of 10km *1
•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*2:
⁻15 min heartbeats = 5 years

     (Conditions: ambient temperature 25 °C, txpower = 20dBm, LoRa spreading factor SF = 10)

•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
•R718X  series carry magnets which can be attached to ferromagnetic materials and objects
•IP Rating Level: IP64

*1. Actual range may vary depending on environment.

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

Electric

Input Power

2 x 3.6V ER14505 AA lithium batteries
(3.6V2400mah/section)

Battery Life

 5 years
(Conditions: ambient temperature 25 °C, 15 min heartbeats, txpower = 20dBm, LoRa spreading factor SF = 10)

Sleeping Mode

20uA

Wake up Mode

6.3mA@3.3V

Low Voltage Threshold

3.2V

Transmitting current (max)

120mA/3.3V                     

Receiving current (max)

11mA @3.3V            


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

10 km (line-of-sight, the actual transmission distance depends on the environment)

Data Transfer Rate

0.3kbps~50kbps

Spread Technique

LoRa/FSK

Available Frequency

US915       AU915       AS923 EU868       KR920       CN470
Configured before shipment


Physical

Dimension

Main Body: L: 112mm*W: 65mm*H: 32mm
Sensor cover size: D: 16mm*L: 34.5mm,

Weight

141g

Environment Temperature Range

-40℃ ~ 55℃

Environment Humidity Range

<90% RH  (No condensation)

Storage Temperature

-40℃ ~ 85℃

IP Rating

/

 

INPUT
Model


R718A

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