VW321A 1W RS485 433mhz wireless transmission module

FOB Reference Price:Get Latest Price
$35.00 - $52.00 / Pieces | 2 Piece/Pieces (Min. Order)
Supplier Type:
Original manufacturer Odm
Lead Time:
Quantity(Pieces) 1 - 2 >2
Est. Time(days) 3 Negotiable
Customized logo (Min. Order: 2 Pieces)
Customized packaging (Min. Order: 2 Pieces)
Samples - $52.00 /Pieces, 1 Pieces (Min. Order): Buy Samples
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Quick Details
Wireless data communication
Place of Origin:
Guangdong, China (Mainland)
Model Number:
Brand Name:
Channel numbers:
100 Channels
Frequency band:
Supply Voltage:
+7.5V ~ +24V
Operate temperature:
-30℃ ~ 80℃
RF data rate:
1200bps ~ 115.2kbps
RF TX. Power:
1W (+30dB) (Max.)
82mm X 50mm X 20mm (with casing including flange)
Linkage range:
2km, outdoor, L.O.S (@ RF rate 9600bps)
Supply Ability
Supply Ability:
10000 Piece/Pieces per Month
Packaging & Delivery
Packaging Details
According to the product model and order quantity, there are five types of conventional packaging:
Shenzhen / HK
Lead Time :
Quantity(Pieces) 1 - 2 >2
Est. Time(days) 3 To be negotiated
Product Description

The VW321A series wireless module provide the capability of a short range, reliable wireless point-to-point, point-to-multipoint and mesh network RF data communications link.They can be used in a variety of data communications applications that require a simple to use invisible data link.

The wireless modules are designed to operate in the unlicensed ISM frequency band (433MHz/868MHz/915MHz ISM band) and are therefore acceptable for use in many countries.

Product Features:

(1) 4 Operation modes: Transparent mode,Transparent secured mode,Addressed mode and Addressed secured mode.
(2) Repeater supported.
(3) Integrated wireless link protocols .
(4) Deep sleep mode supported.
(5) Server-Client mode.
(6) Easy configuration by AT commands.
(7) Easy configuration with a user friendly control panel on PC.
(8) Boot Loader supported.

Major Parameters:

Frequency band:
Supply Voltage:
RS232/USB/232TTL:+4.5V~ +5.5V
RS485:7.5V~ +24V
RF date rate:
1200bps ~ 128kbps
Channel numbers:
Linkage range:
2km linkage range at 9600bps, L.O.S
Operate temperature:

RS485/RS232: 82mm X 50mm X 20mm (with casing including flange)
USB: 81mm X 84mm X 24mm (with casing including flange)
232TTL: 41mm X 31mm X 7mm

Interface footprint:
RS485/RS232:Terminal Block
232TTL:2.0mm SMT solder pad or pin header
Antenna impedance:
Function Description

☀ Providing the capability of a short range, reliable wireless point-to-point, point-to-multipoint and mesh network 

    RF data communications link.
☀ Being used in a variety of data communications applications that require a simple to use invisible data link, and is 

    designed to interface to a variety of host devices.
☀ Providing a two-way data communications links. The serial data transferred over the radio link is not altered.

Detail & Accessories

       RS485 Interface

            Transparent mode, Transparent secured mode
            Addressed mode and Addressed secured mode.

Name: Magnetic Antenna

Frequency: 433MHz
Connector: SMA-Male
Length: Antenna length 155mm
(Cable length can be customized)


       Name: Swivel Antenna

            Frequency: 433MHz
           Connector: SMA-Male
           Length: 108mm (87mm after swiveled)

Major Applications

(1) Wireless 232 or 485/422 data link .
(2) Water,electricity,gas and other automatic meter reading (AMR)system;
(3) Building automation system; Security entry system;
(4) Intelligent traffic; Vehicle Control;
(5) Wireless scanner;
(6) Restaurant Order System Management;
(7) Industrial control,remote sensing,automatic data collection system;
(8) Wireless data transmission; Digital audio,digital image transmission;
(9) Wireless electronic display screen;
(10) Telemetric systems;
(11) Oil Well Measuring,Environmental Protection Monitoring.
(12) Hydrology Water Level Monitoring; etc.

                       ▪ Industrial Manufacturing

            Replacing industrial field short-distance
            signal cable, Reducing wiring, Easy to
            manage and improve production efficiency.

                  ▪ Automatic Water Meter Reading

        AMR saves utility providers the expense of periodic
        trips to each physical location to read a meter.
        Helping to reduce user complaints and improve
        service quality.

                                ▪ Smart Farm

            Accurately monitor the details of each
            work area for easy statistics Management,
            first discovered potential risks.

             ▪ Hydrotlogy Water Level Monitoring

       Remote monitoring hydrology water level in many
       environments including wells, dams, streams, weirs,
       storm water systems, and water treatment or
       wastewater treatment plants and etc. Get instant
       alerts and know exactly what's happening at any

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Our Company
Packaging & Shipping

Our package:

Our products are well packed with standard 

paper box. Size:19.5cm*17.5cm*6cm.

There are different sizes of packaging according to the product model and order quantity.


We accept T/T, Escrow, PayPal and Westem

union payment.


1.For sample quantities, we will normally ship the parts within 1-3 working days after payment is received.
2.The parts can be shipped by DHL/EMS/TNT/FedEx/UPS or other methods as per your resquest . We Will arrange

   it for you if you have no preference on the express carrier.
3.We are not responsible for any accidents, delays or other issues that are the responsibility of the shipping service.


We maintain high standards of excellence and strive for 100% customer satisfaction. Feedback is very important to us. We welcome for your kind suggestion on the parts and our service.We are usually online from 8:45-17:45 (GTM+8). If you have any question, please feel free to contact us. If we are off line, you can leave a message, Email or call us. We will reply you as soon as possible!

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