Corrosionresistant Hydrological Cable

We don’t guess – we test. Jacket materials like polyethylene or polyurethane are selected for low water absorption and chemical stability. Conductors are typically tinned copper to slow galvanic corrosion. The key is avoiding cheap PVC compounds that plasticize in water. Tell us your water chemistry and expected immersion period, and we’ll recommend a proven build. We’ve seen these cables perform reliably in monitoring wells for over five years with no conductor failure.

Yes, that’s standard practice. We attach and seal the connector at the factory so the cable-to-sensor junction is protected from the start. Common connectors include 4-pin and 6-pin circular types for water level sensors. If you’re using a third-party sensor, we can check compatibility and pot the connection with our own sealing technique to prevent moisture wicking.

Lengths run from a few meters up to 500 meters in one piece. Shorter orders from stock go out within a week. Custom lengths above 100 meters usually need 2-3 weeks for production and curing of sealing joints. We batch orders frequently for hydrology customers, so timing is predictable.

The jacket material dictates temperature range. Our standard polyethylene jacket handles -40°C to 80°C without cracking or softening. In direct tropical sun, we sometimes add carbon black for UV resistance. If your site sees continuous high temperatures, we can discuss alternative jacket materials like TPE that maintain flexibility.

Very often, yes. Moisture migration inside the cable or connector can create stray currents that confuse sensitive sensors. Before blaming the sensor, try a loop resistance test on the cable. If values are unstable, moisture has likely penetrated. Our support team can help you diagnose the issue and, if the cable is at fault, we’ll suggest a replacement with better sealing for your conditions.