The GDS-58NXP sample draw system is an ideal solution for applications where ambient conditions are unsuitable for traditional ambient sensors, or where access to an ambient sensor would be inconvenient or dangerous. The GDS-58NXP sample draw features the new GASMAX CX gas monitor with Digital Sensor technology and advanced Ethernet / MODBUS communications options.

Together with a fully integrated long-life brushless sample pump, adjustable flow meter and low flow warning switch, the highly reliable GDS-58NXP can monitor locations up to 500 feet away for both combustible and toxic gases.

Brochure Manual


  • Single or dual channel – monitor both LEL & H2S simultaneously
  • Supports all GDS Corp electrochemical and bridge-type sensors
  • High quality diaphragm pump with 24VDC motor with low-flow warning switch
  • Full color, high visibility LCD display flashes yellow or red on alarm conditions
  • Analog 4-20mA, dual serial MODBUS and 4x SPDT relay outputs
  • Integrated RJ-11 Ethernet with web server and MODBUS / TCP for remote display and setup
  • Built-in flow meter provides visual confirmation of sample flow
  • Prompted calibration procedure and calibration gas port for easy maintenance
  • Sample lines up to 100 meters in length
  • Optional matching 110/220VAC power supply