SLR-434M is a 434MHz embedded receiver for
reliable long-range industrial control applications
May 22, 2018 - Fairport, NY, USA: Saelig Company,
Inc., (Saelig) (www.saelig.com) has
Circuit Design SLR-434M Smart Modem - a compact, easy to use narrow-band embedded
radio modem operating in the 434 MHz ISM band. It incorporates LoRa® technology to achieve
extremely long range for low bit-rate data with low power. The SLR-434M's excellent receiving
sensitivity allows communication into areas once considered difficult for RF to penetrate,
and making it possible to transmit 1800 feet or more. The SLR-434M is also switchable
to accommodate conventional FSK communication.
The SLR-434M can transmit data or operate in simple control systems using Circuit
Design's dedicated command protocol from an external CPU or PC via an RS232 or COMport
interface. The SLR-434M can process 8 I/O switching signals. With up to 10mW RF output
power from the SMA connector, the SLR-434M can be used in simplex or duplex mode on 137
channels. It operates from a 3.5 - 5.0V supply, consuming less than 30mA when transmitting.
Its low power consumption makes battery operation possible with this sturdy 1.6" x 1.2"
x 025" module.
Applications include data transmission, telemetry, and control in buildings, water
level and dam monitoring, tunnel and bridge condition monitoring, etc.
The TB-SLR-RS2 is an RS232 interface board for experimenting with the SLR-434M module.
The built-in DB9 connector allows quick connection to the COM port of PC or PLC. The
board is equipped with transmit/receive LED, a power supply terminal, main switch and
an interface to sub boards. The module can be used with a coax extension cable to allow
optimum placement of the antenna according to the environment.
The SLR-434M is made by Circuit Design, a leading Japanese low power radio product
design and manufacturing company.
*LoRa® is a trademark of Semtech Corporation.
About Saelig Company, Inc.
Founded in 1988 in Rochester, New York, Saelig is a North American distributor with
a growing reputation for finding and sourcing unique, easy-to-use control and instrumentation
products and related active components, for use in a variety of industries. Products
lines are continuously added from sources across the globe, and are offered at highly
competitive prices, accompanied by full in-house technical support, exceptional customer
service, and fast delivery. For full details of available product lines, please visit
Alan Lowne President Saelig Company, Inc. 71 Perinton Parkway Fairport,
NY 14450 USA Toll-Free: (888) 7-SAELIG
(888) 772-3544 Tel: (585) 385-1750 Email: