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![Blue Sea 1839 M2 OLED Tank Monitor [1839] Alabama 60 DS21B-S Vertical Cable Seal -](https://cdn.shopify.com/s/files/1/0627/1103/8191/files/64341XL.jpg?v=1749150503)
DS21B-S Vertical Cable Seal - Stainless Steel
Why Marine Professionals Choose Seaview Cable Seals
UPC: 632085060114
light bars
Attached whistle for safety
Blue Sea 1839 M2 OLED Tank Monitor [1839] Alabama 60 DS21B-S Vertical Cable Seal -M2 OLED Tank Monitor The M2 Organic LED Digital Monitor measures essential electrical system parameters with adjustable alarms and an auto dimming display. The M2 Monitors include a MOSFET External Circuit Relay (ECR) which can be used to control external circuits based on any value measured by the M2. Features: Auto dimming, bright Organic LED display is easy to read 80dB alarm on all models Isolated 500mA MOSFET relay Includes external DC Shunt or
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