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Civacon · Probes & Sensors
5650RL-7
In stock · ships from Knoxville
The Civacon CivaStar ROMLink 2-wire optic replacement probe [opwglobal.com](https://www.opwglobal.com/products/us/transportation-products/tank-truck-products/electrical-tank-truck-products/probes/romlink-overfill-probes) detects liquid presence to provide overfill protection on petroleum tank trucks.
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This probe is a direct replacement for existing CivaStar ROMLink systems. When upgrading from old‑style ROMLink sensors (e.g., STK‑007B) to CivaStar, you must also purchase the CivaStar ROMLink probe with housing (5610RL‑7) or the cap‑and‑probe kit (5356‑2W‑7) because the new probe is not compatible with old caps [opwglobal.com](https://www.opwglobal.com/docs/libraries/civacon/iom/civastar-conversion-chart.pdf?sfvrsn=2f1791c4_2).
Part data verified against 4 catalog sources
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The 7-inch probe installs quickly into the ROMLink cap without resetting height, using tool‑less torsion spring adjustment and built‑in LED diagnostics. It is typically replaced when the sensor fails or during an upgrade from older ROMLink probes, helping maintain reliable overfill prevention and uptime. Durable aluminum shaft, silicone O‑ring, and plated steel locking nut withstand demanding tank truck conditions.
Part Number: 5650RL-7
7 CIVIASTAR ROMLINK REPLACEMENT PROBE
Category: Probes
Unit: ea
Vendor: Knappco Corp.
Dealer: Post Onsite
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