The Electrolab D99 Extended Warm-Up Node has one analog input using an extended warm-up time to accommodate ultrasonic, radar, and other types of sensors that require an extended warm-up time. The default configuration for the analog input is set to a 29 second warm-up time for compatibility with most 4 to 20 mA sensors. Additional configuration allows for one, 3-wire, 100-Ohm Platinum RTD, one sinking discrete input.


Class I, Division 1, Groups A, B, C, D

Explosion proof housing

Built with robust housing for long-term reliability

Long battery life

Designed for easy replacement

Compatible with third-party devices


This node is powered with one lithium battery integrated into the intrinsically safe housing. The D99 housing is certified for use in Class I, Div. 1; Groups A, B, C, and D, Class II, Div. 1, Groups E, F, G; Class III, Zone 0 and Zone 20 when properly installed in accordance with the National Electrical Code and applicable local codes and regulations.


Part Number
ELD99M3D5 – D99 Extended Warm-up Node


  • One 0-20 mA

  • One 3-wire, 100-Ohm RTD

  • One sinking discrete