R831D-Wireless Multifunctional Control Box
R831D have three relay switches(output) and three dry contacts(input).
R831D can report status of 3 dry contacts individually and control 3 relays.
R831 can be equipped with a three-way controllable relay switch. The three-way relay output can be used as a dry contact. The user can separately control it through wireless commands which adopts SX1276 wireless communication module. R831 series has 4 types: R831A, R831B, R831C, and R831D. R831D reports the relay status and determines which relay to control through the network linkage and the instruction.

Features
- Adopt SX1276 wireless communication module
- Three-way relays and dry contacts
- Compatible with LoRaWAN Class C
- Frequency hopping spread spectrum technology
- Configuration parameters can be configured through third-party software platforms, data can be read and alerts can be set via SMS text and email(optional)
- Applicable to third-party platforms: Actility / ThingPark, TTN, MyDevices / Cayenne
Specifications
Electric:
Operating Voltage
DC 12V / 1A
Operating Current
20mA (12V) (There are no relay action status and data sent by LoRa.)
<250mA (12V)( There are relay action status and data sent by LoRa.)
Relay Load Characteristics
Contact load:AC250V/5A、DC30V/5A
Relay Coil Power Consumption
300mW
Relay Type
Magnetic Latching Relay
Relay Model
HFE60/5-1HSTGL2R
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
LoRa: 0.3kbps~50kbps
FSK: 1.2kbps~300kbps
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:
Size
66mm x 47mm x 20.3 mm
Working Temperature
-20°C ~ 55°C
Ambient Humidity Range
<90% RH(no condense)
Storage Temperature Range
-40°C ~ 85°C
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