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Order Number SN802GR420-4

Battery powered Wireless Sensor Node using IEEE 802.11 technology

  • 2.4GHz IEEE 802.11g Sensor Node
  • Network Topology: Point-to-Point and Point-to-Multipoint

2 RTD, 2 4-20mA, and 2 Digital Inputs

  • Accepts standard RTD and 4-20mA sensor devices
  • Works with standard 802.11b/g/n access points
  • Battery provides years of operation
  • To Be Discontinued  

    Explanation of Product Status

    Under Development Products under development
    Please contact us for product availability and sample lead-time.
    In Production Product is in mass production.
    to be discontinued Not recommended for new designs. We are evaluating the schedule for the discontinuing of production of this item. Contact Murata or refer to the website for details of product supply and possible alternative product information.
    Discontinued product Production of this product has stopped. Contact Murata for inventory availability and possible alternative products.
    Recommended product This product is particularly recommended among our products currently in production.
    New product It's new item.


The SN802GR420-4 is an IEEE 802.11g-based sensor node supporting two RTD, two 4-20 mA and two switch inputs. The SN802GR420-4's very low average power consumption provides up to 5 years of operating battery life. The MurataWSN802G -PA radio used in the SN802GR420-4 can take advantage of existing Wi-Fi access points to lower deployment costs. With Wi-Fi networks widely available and well understood by IT departments, the SN802GR420-4 is easily integrated into existing networks. The SN802GR420-4 is compatible with 802.11b/g/n networks and supports WPA2 encryption, providing strong data security. The SN802GR420-4 can operate at RF data rates from 1 to 11 Mbps, providing plenty of bandwidth for sensor applications.
Minimum Order Quantity 1
Product Type Sensor Node
Frequency 2.4GHz
Modulation No
Antenna Internal 0 dBi Patch
Operating Temperature Range -40 to +85
Operating Temperature °C (min) -40
Operating Temperature °C (max) 85
Mounting Type Flange
Dimension 64 x 140 x 33 mm
Transmit Power Configurable Yes
Transmit Power 10
Receiver Sensitivity -92 dBm
Data Rate 11000.00 kbps
Data Rate Configurable No
Range Indoor 30m, Outdoor 100m
Technology IEEE 802.11g
Security AES-128 Encryption
Network Point-to-Point and Point-to-Multipoint
Host Interface RS-232C
I/O Interface 4 Analog 2 Digital
Host Interface Other No
FCC/IC Certified FCC/IC Certified
ETSI Certified ETSI Certified
RoHs Compliant Yes
CE Compliant CE Compliant
ISO9001 Yes
TS16969 No
Document Statement Visit the Support section for Application Notes, Reference Designs, White Papers, and more designing applications and systems using Murata 802.11b/g sensor networking technologies.
Data Sheet Download PDF
Manual Download PDF
Key Markets Industrial Automation | Building Automation | Manufacturing Industries | Healthcare | Utilities ( Power, Gas, Water) | Agricultural and Commercial Ventures | AMR & Smart Grid
Key Applications AMR and Smart Grid | Smart Energy Management and Control | Automatic Lighting and Temperature Control | Industrial Automation
Applications Characteristics M2M, WSN and Internet of Things Applications Requiring: | - Long-range data throughput even in the presence of electrical noise and multi-path fading | - Direction Connections and Reporting of Sensor Data | - High level of flexibility
Order Number SN802GR420-4
Packaging No
Shipping Size 1 Unit / Box