ELPRO Technologies Description The ELPRO 905U-K Wireless I/O is a small I/O transmitter that extends long-range, license-free communications to sensors in local, remote, or difficult-to-reach locations. Designed for low power consumption and easy plug-in of ELPRO BU-5 battery packs, the ELPRO 905U-K provides reliable continuity in environments typical of industrial applications with power constraints. Capable of transferring analog, pluse, or discrete inputs, and powering a loop-powered analog device (24 Vdc, 50 mA), the ELPRO 905U-K offers a simple-to-deploy and highly reliable solution. Features • 902-928 MHz frequency and up to 1W RF power • Link process inputs to single or multiple outputs (peer to peer) • Multiple power supply options, including battery-only supply with ultra-low power consumption (reverts to sleep mode) • Input-only transmitter unit (2 or 4 DI/PI, 1 AI) that can be connected to multiple I/O and/or gateway units, with up to 3000 units in a system • Peer-to-peer communications with exception reporting, reliable self-checking via update time. and secure data encryption • External inputs plus internally calculated values, including analog set point status, pulse rate and pulse total, power/battery supply voltage, and power supply alarm • Can connect to up/down counter transducers, such as shaft-encoders • Configurable repeat transmissions to enhance message reliability • Set point, pulse count, and rate available. Additional Internal I/O points provided for health monitoring • Class I Div 2 hazardous areas approval (US/Canada) Applications • High-level alarms • Security gate control • Emergency shower notification • Flow meter monitoring • Storage tank monitoring • Pipeline cathodic protection • Pump stop-start • Lighting bank control • Power reticulation relay fault notifications • Weather station reporting • Bearing condition monitoring

Technical Data EL-905U-K Effective November 2018 SPECIFICATION DESCRIPTION Transmitter and Receiver Frequency 902-928 MHz © Transmission Frequency hopping spread spectrum (FHSS) Modulation Frequency shift keying Data rate 19.2 kbps with forward error correction Range (LoS) 20 miles (32 km) @ 4W © © EIRP 9.3 miles (15+km) @ 1W EIRP (other countries) Antenna connector Female SMA standard polarity Input and Output Digital inputs TTL voltage 0-1.5 Vdc (on), 3.5-13 Vdc (off) Surge protected, not isolated Voltage-free/NPN contacts 2 DI(external, status) Analog inputs 0-24 mA...

ELPROTechnologies ELPRO Technologies 9/12 Billabong Street Stafford Queensland 4053 Australia ELPRO Technologies is a registered trademark. All other trademarks are property of their respective owners. [email protected] www.elpro.com.au © 2018 ELPRO Technologies All Rights Reserved Publication No. EL-905U-K November 2018