Wireless Discrete (DS1)

Fast Commissioning, Wireless Exception Reporting Solution.

  • Wireless Discrete Transmitter provides 2x discrete inputs (Dry Contact / NPN)
  • On-delay exception reporting
  • Over 7-year battery life
  • Local display for reading & configuration
  • Self-contained, rugged design
  • Reports to a Gateway in OTC network
  • Class I, Division 1 (Zone 0), intrinsically safe
  • -40 ˚C to 70 ˚C / -40 ˚F to 158 ˚F
  • 900 MHz: Up to 7500 ft (2.3 km)
  • 2.4 GHz: Up to 4.3 miles (7 km)
  • Secure AES encryption


The OleumTech® Wireless Discrete Transmitter with local display features two discrete (digital) inputs for connecting to a dry contact or open-drain output/NPN source for notifying state changes. This input can be set for normally open or normally closed. The Transmitter can also report transition counts. The DS1 utilizes on-delay exception reporting method and users can set the debounce filter ranging from 20 ms to 2000 ms to control just when the state change occurs.

As a safety measure, regardless of state change, this device reports to the Gateway every five minutes. The Discrete Transmitter provides removable wiring terminal blocks in its junction box housing to facilitate the wiring process.


The DS1 features a 32-character local LCD display for instantly reading process data, battery voltage, and RF strength (RSSI). When the display is set to configuration mode, users can set all of its parameters and connect to a network just using the push button interface without the need of any configuration cables.


The Wireless Transmitter relies on power from a replaceable battery. The system is engineered to achieve maximum battery life, providing +7 years of life from a single battery.


Designed for use in Class I, Division 1 (Zone 0) hazardous locations. The DS1 is intrinsically safe, meaning it cannot a ause a spark and can be serviced without being removed from a process.


The OTC Sensor Network is managed using the BreeZ Software by OleumTech, provided free of charge. The Discrete Transmitter can be configured using the push button interface or BreeZ Software.


The DS1 communicates with an OleumTech Wireless Gateway within its network, creating a highly scalable network, accommodating virtually any I/O requirement.