(OleumTech Corp.: Foothill Ranch, CA) -- OleumTech, a leader in industrial automation and IoT solutions, has launched the 4-20mA/HART version of its flagship tank level sensors. Previously available only in Modbus and wireless configurations, the HW-RL6 model is designed to meet the needs of users who require a 4-20mA signal or HART protocol for critical level data.

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