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IoT Wireless Dry Contact Sensor detect contact between two wired contact points

This is IoT LoRAWAN technology Based Long Range Smart Sensor Devices

Engineer who need User manual & Datasheet please contact us solution@iotsss.com

wireless dry contact sensors can be used to detect contact between two wired contact points.
It can realize wireless alarm and other functions through built-in wireless module, and is compatible with LoRaWAN protocol.
It can be easily networked with other related devices.
The R311CA is durable and ensures optimum use and is a low power consumption device.
Due to their small size, they can be installed anywhere, they are wireless, so they take up very little space.
• LoRaWANTM Class A compatible
• Frequency Hopping Spread Spectrum (FHSS)
• Improved interference immunity
• Improved power management for longer battery life
• Battery Life*2:
• 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
•*1. Actual range may vary depending on environment.
•*2. Battery life is determined by sensor reporting frequency and other variables
Electric:
  Input Power
  2pcs 3.0V CR2450 button battery
  Working Voltage
  DC 2.4V～3.0V
  Standby Current
  10uA /3.0V
  Transmitting Current (max)
  120mA / 3.0V
  Receiving Current (max)
  11mA / 3.0V
  Battery Voltage Measurement Accuracy
  ±0.1V
  Wire Material
  UL2468 28AWG
  Wire Length
  1000mm（±5mm）
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connecting and remote control everything
We’re professional and Special to built 
Long Range Wireless Solutions
We have more than 1000+ IoT Smart Devices
Easy to Built Smart Factory,
Smart Industry4.0, Smart Farm, Smart Energy,
get all basic DATA , and Show you anytime,anywhere
www.iotsss.com
Global Advanced Smart Solutions Supplier 
Frequency:
Frequency Range
863MHz-928MHz 470MHz-510MHz
TX Power
US915 20dbm；
AS923 16dbm；
AU915 20dbm；
CN470 19.15dbm；
EU868 16dbm；
KR920 14dbm；
IN865 20dbm；
Receiving Sensitivity
-136dBm（LoRa，Spreading Factor=12，Bit Rate=293bps )；
-121dBm (FSK,Frequency deviation=5kHz, Bit Rate=1.2kbps)
Antenna Type
Built-in antenna
Communication Distance
Up to 10 km
(visible linear obstacle-free transmission distance , actual transmission distance depends on the environment )
Data Transfer Rate
0.3kbps～50kbps
Modulation
LoRa/FSK (Note: You can choose one of them)
Supportable LoRaWAN Band
EU863-870,US902-928,AU915-928,KR920-923,AS923-1,AS923-2,AS923-3,
IN865-867,CN470-510
(Note: The frequency band is optional and needs to be configured before shipment)
Physical:
  Main Body Dimension
  57mm x 35mm x 15.2mm
  Weight
  48.9 g
  Operating Temperature
  -20℃ ～ 55℃
  Environment Humidity Range
  <90% RH (No condensation)
  Storage Temperature
  -40℃ ～ 85℃

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