Simple, visual, & continuous monitoring of your cooling water systems

The Sentinel model D uses the same patented test heat exchanger as our other Sentinel models, giving you the full benefits of a heated corrosion coupon with uniform heat transfer across the exposure area. We have worked to make operation foolproof & streamlined for continuous visual inspection of your results. It doesn’t get easier than this to know everyday what the inside of your equipment looks like, without shutting down a single part of your operation.

See your results now and everyday

Additional Details

Purchase from $2,995

Weight w/ Exchanger: 6 lbs | Dimensions: 12″ x 12″ x 6″ | w/ Exchanger: 28″ x 12″ x 8″

STANDARD FLOW REGULATION: 2 GPM | OPTIONAL Config: 1 GPM | 3 GPM