Tank Level Gauges
The Krueger Sentry Tank Gauge product line includes liquid level gauges, leak gauges, overfill protection gauges and accessories for our products. Browse our products below. Question on ordering? See our Order Help page or call. We are happy to help!

Liquid Level Gauges
- At A Glance
- Therma Gauge
- The L Gauge
- Barrel Gauge
- Remote Reading Gauge
- GFK Gauge
- Chemical Gauge

Overfill Alert Gauges
- Standard Overfill Alert Gauge
- OF-S1 Overfill Gauge
- OF-S2 Overfill Gauge
- OF-S3 All Stainless Overfill Gauges
- PO- All Plastic Overfill Gauge

Leak Detection Gauges
Vertical leak monitor used for detecting leaks in the annular/interstitial space of a double wall above ground containment tank.

Gauge Accessories & Options
Krueger offers audible alarms, remote displays, repair kits, and material upgrades that retrofit directly to the gauges you have in the field.

Chemical Tank Level Gauge
Some of our most popular chemical tank level gauges and acid liquid level gauges now in an all-plastic construction to provide maximum compatibility with more aggressive liquids and chemicals.