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, two analog inputs and 19 V boost voltage.




Frequency Hopping Spread Spectrum technology and Time Division Multiple Access Control ensure reliable data delivery. Transceivers provide bidirectional communication between the Gateway and Node, including fully acknowledged data transmission. Lost RF links are detected and relevant outputs set to user-defined parameters.


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

Built in GUI for ease of installation


You can easily configure any additional settings for the node on site by manipulating switches inside the node housing.


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