EBYTE E42-400M20S Wireless Module Small size Low power consumption 433MHz RF Transceiver HW3000 Chip - IOT Module Shop Manufacturer Factory – Ebyte Official Store - IoT Module Manufacturer
EBYTE E42 - 400M20S Wireless Module Small size Low power consumption 433MHz RF Transceiver HW3000 Chip - IOT Module Shop Manufacturer Factory
EBYTE E42 - 400M20S Wireless Module Small size Low power consumption 433MHz RF Transceiver HW3000 Chip - IOT Module Shop Manufacturer Factory
EBYTE E42 - 400M20S Wireless Module Small size Low power consumption 433MHz RF Transceiver HW3000 Chip - IOT Module Shop Manufacturer Factory
EBYTE E42 - 400M20S Wireless Module Small size Low power consumption 433MHz RF Transceiver HW3000 Chip - IOT Module Shop Manufacturer Factory
EBYTE E42 - 400M20S Wireless Module Small size Low power consumption 433MHz RF Transceiver HW3000 Chip - IOT Module Shop Manufacturer Factory
EBYTE E42 - 400M20S Wireless Module Small size Low power consumption 433MHz RF Transceiver HW3000 Chip - IOT Module Shop Manufacturer Factory
EBYTE E42 - 400M20S Wireless Module Small size Low power consumption 433MHz RF Transceiver HW3000 Chip - IOT Module Shop Manufacturer Factory
EBYTE E42 - 400M20S Wireless Module Small size Low power consumption 433MHz RF Transceiver HW3000 Chip - IOT Module Shop Manufacturer Factory
EBYTE E42-400M20S Wireless Module Small size Low power consumption 433MHz RF Transceiver HW3000 Chip

EBYTE E42-400M20S Wireless Module Small size Low power consumption 433MHz RF Transceiver HW3000 Chip

$1.59

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The Ebyte E42-400M20S is a compact SPI-based industrial wireless transceiver module engineered with the high-performance HW3000 chip, operating in the 428–522 MHz band with 20dBm (100mW) transmit power, designed to deliver... Read more

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Module plus antenna: E42-400M20S

  • E42-400M20S
  • E42-400M20S and TX433-FPC-3208
  • E42-400M20S and TX433-JKS-IPX20
Will not ship until [19041994]
$1.59
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SKU: E42-400M20SN/ATags: 2.5km, 20dBm, 428~522MHz, HW3000

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We have sufficient goods in stock. We will send out goods within 1 to 2 working days after payment. We use China Post Air Mail as our regular shipping method. It normally takes 7 to 15 working days to arrive. Free shipping applies to orders over $89.99, excluding fiberglass antennas and power supplies. More Shipping Policies

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You can download related documents directly on each product page. More materials:https://www.cdebyte.com/Product-Selection

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Download Product Manuals Documents

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Description
The Ebyte E42-400M20S is a compact SPI-based industrial wireless transceiver module engineered with the high-performance HW3000 chip, operating in the 428–522 MHz band with 20dBm (100mW) transmit power, designed to deliver high-sensitivity, anti-interference data transmission over distances up to 2.5km in semi-duplex transparent transmission mode.
Technical Parameter Specification Value Engineering Design Notes
Chip Solution HW3000 Original Shanghai Neusoft Carrier RF core architecture.
Frequency Band 428 to 522 MHz Supports standard 433MHz and 470MHz regional ISM bands.
Transmit Power 20 dBm (100mW) Optimized for high-efficiency signal propagation and power balance.
Communication Distance 2.5 km Tested under open, clear outdoor conditions with standard antennas.
Communication Interface SPI Supports flexible integration with various host microcontrollers.
Module Dimensions 20 x 14 mm Ultra-small form factor for space-constrained PCB designs.
Working Mode Half-Duplex Transparent Transmission Simplifies application software logic without complex protocol stack handling.

 

Eastsoft HW3000 Chip Wireless RF ModuleLow Power Chip Flexible ApplicationCommunication Distance Reaches 2500 MetersUltra-wide frequency bandTransmission Power 100mWTwo Antenna FormsHigh Quality Industrial Grade ComponentsRecommended Circuit DiagramE42-400M20S Special Test KitApplication Scenarios

Practical Application Scenarios

1. Smart Agriculture Irrigation and Soil Monitoring Systems

In large-scale agricultural operations, monitoring soil moisture across extensive fields requires long-range, energy-efficient wireless nodes. The E42-400M20S is embedded in remote soil sensors to transmit periodic moisture levels back to the central master gateway. Its 2.5km distance capability ensures comprehensive coverage across wide farm terrains, while the high anti-interference capability ensures reliable data reception even in regions with significant environmental noise.

2. Intelligent Industrial Facility Monitoring and Asset Tracking

Factories often contain significant electromagnetic noise from motors and heavy machinery, which disrupts standard low-cost wireless links. This module utilizes the robust HW3000 RF core to maintain stable communication links in such complex industrial environments. It is widely used in automated asset tracking nodes to report location and status updates back to a central server, ensuring data integrity for industrial logistics and indoor warehouse management.

3. Smart Grid and Utility Meter Reading Networks

Power distribution networks and utility grids require high-sensitivity modules to ensure data packets from electricity meters are correctly received at local collector terminals. By operating in the 470MHz frequency band, this module provides superior penetration of physical obstacles. It acts as an embedded data bridge in smart metering infrastructure, effectively automating utility collection and reducing the manual labor associated with grid maintenance.

FAQ Section

1. How does the half-duplex transparent transmission mode simplify my embedded system software development?

The transparent transmission mode allows the module to treat the wireless link like a standard hardware serial UART port. Your host microcontroller simply sends raw data packets via the SPI interface to the module, and the module automatically handles framing, preamble, and address synchronization over the air. You do not need to integrate complex proprietary protocol stacks, drastically reducing software development time and memory footprint.

2. Can I use the E42-400M20S for high-speed, long-distance remote control in indoor environments?

Yes. The module's hardware is optimized for high receiving sensitivity and strong signal selectivity. In an indoor setting with physical obstacles like walls or furniture, the module maintains a robust link budget compared to generic 2.4GHz modules. For remote control applications, this ensures reliable signal capture from handheld remotes or control panels even when there is no direct line-of-sight to the receiver.

3. How should I optimize the antenna placement to achieve the 2.5km communication range?

The 2.5km reference distance is tested in a clear, open-air environment. To achieve this in real-world deployment, ensure the module's antenna is mounted away from metal enclosures and large copper ground pours on your host PCB. Using a high-gain omnidirectional antenna and ensuring proper impedance matching for the RF path will minimize signal loss and maximize the effective coverage area.

Additional Information
Module plus antenna

E42-400M20S, E42-400M20S and TX433-FPC-3208, E42-400M20S and TX433-JKS-IPX20

Disclaimer：This product is strictly prohibited for use in military applications and scenarios related to life safety. The user shall be fully liable for any unauthorized use.

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EBYTE E42-400M20S Wireless Module Small size Low power consumption 433MHz RF Transceiver HW3000 Chip

E42-400M20S
E42-400M20S
$1.59
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