Interstitial Sensor for Steel Tanks for TLS-350/350Plus/TLS-450/TLS-450Plus

Overview

The 794390-420 Interstitial Sensor is a leak detection component engineered for use in steel double-wall tanks monitored by Veeder-Root TLS systems. Since environmental safety and regulatory compliance depend on early leak detection, this sensor provides continuous monitoring of the interstitial space. Additionally, it helps fuel site operators react quickly to breaches—minimizing cleanup costs and downtime. Whether you’re installing a new UST system or maintaining an existing one, this sensor simplifies compliance and enhances your leak prevention strategy.

Compatibility

• Veeder-Root TLS-350
• Veeder-Root TLS-350Plus
• Veeder-Root TLS-450
• Veeder-Root TLS-450Plus

Features & Benefits

• Replaces OEM part number 794390-420
• Designed for steel tank interstitial applications
• Monitors the space between inner and outer tank walls for leaks
• Ensures reliable performance under harsh underground conditions
• Supports leak detection compliance with federal and state regulations

About Freedom Electronics

Freedom Electronics offers trusted OEM components that support fuel system monitoring and compliance. Each sensor we stock meets strict performance standards and is ready for immediate deployment. Furthermore, our expert team helps you select the right equipment—so your operation stays leak-free and regulation-ready from day one.

Frequently Asked Questions

Q: Can this sensor be used in fiberglass tanks?
A: No, this model is designed specifically for use in steel double-wall tanks. For fiberglass tank applications, a different sensor model may be required.

Q: Is this compatible with the TLS-450 and TLS-450Plus?
A: Yes, This version is certified for all TLS-350 and TLS-450 systems