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Order Number SN90R420-4

Battery powered Wireless Sensor Node using 900 MHz FHSS technology

  • 900MHz Proprietary FHSS 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 LG90E/C gateway for Internet and Cloud connectivity
  • Battery provides years of operation
  • Recommended In Production  

    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 SN90R420-4 is a battery-powered wireless sensor node that provides support for two 100 ohm Platinum RTD inputs, two 4-20 mA inputs and two switch inputs (many other sensor configurations are available, contact Muratafor details). Connectivity is provided through a 900 MHz Frequency Hopping Spread Spectrum (FHSS) wireless connection, making use of the companion LG90E Ethernet gateway or LG90C cellular gateway. The unique low-power architecture used in the SN90- R420-4 provides years of battery operation. Sensor data and battery status are automatically transmitted based on user-configurable conditions, simplifying application software design. The wireless sensor node can be configured over-the-air or through its serial port.
Minimum Order Quantity 1
Product Type Sensor Node
Frequency 900MHz
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 40mW, 150mW
Receiver Sensitivity -100 dBm
Data Rate 100.00 kbps
Data Rate Configurable No
Range Indoor 100m, Outdoor 10,000m
Technology Proprietary FHSS
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 No
RoHs Compliant Yes
CE Compliant No
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 Frequency Hopping Spread Spectrum technology.
Data Sheet 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 SN90R420-4
Packaging No
Shipping Size 1 Unit / Box