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![ARCO Marine 1000A/50mV Shunt [ST1000]](https://www.marinefree.com/wp-content/uploads/2025/4/1745576854/arco-marine-1000a-50mv-shunt-st1000-1745576858.webp)
$39.98
$79.95
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![ARCO Marine 500A/50mV Shunt [ST500]](https://www.marinefree.com/wp-content/uploads/2025/4/1745576854/arco-marine-500a-50mv-shunt-st500-1745576858.webp)
$29.20
$36.50
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![Balmar Bluetooth Gateway f/SG200 [SG2-0300]](https://www.marinefree.com/wp-content/uploads/2025/4/1745576631/balmar-bluetooth-gateway-f-sg200-sg2-0300-1745576636.webp)
$30.00
$59.99
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![Balmar Color Display f/SG200 2-1/16" Second Display [SG2-0200]](https://www.marinefree.com/wp-content/uploads/2025/4/1745576631/balmar-color-display-f-sg200-2-1-16-second-display-sg2-0200-1745576636.webp)
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![Balmar Com Cable f/SG200 10M SmartLink [SG2-0400]](https://www.marinefree.com/wp-content/uploads/2025/4/1745576631/balmar-com-cable-f-sg200-10m-smartlink-sg2-0400-1745576636.webp)
$33.00
$65.99
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![Balmar Communication Cable f/SG200 - 3-Way Adapter [SG2-0404]](https://www.marinefree.com/wp-content/uploads/2025/4/1745576796/balmar-communication-cable-f-sg200-3-way-adapter-sg2-0404-1745576801.webp)
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![Balmar Communication Cable f/SG200 - 5M [SG2-0403]](https://www.marinefree.com/wp-content/uploads/2025/4/1745576796/balmar-communication-cable-f-sg200-5m-sg2-0403-1745576801.webp)
$30.00
$59.99
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![Balmar Mounting Plate f/SG200 Display - Fits Smartguage Cutout [SG2-0402]](https://www.marinefree.com/wp-content/uploads/2025/4/1745576741/balmar-mounting-plate-f-sg200-display-fits-smartguage-cutout-sg2-0402-1745576745.webp)
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![Balmar SG200 Battery Monitor Kit w/Display Shunt 10M Cable - 12-48 VDC [SG200]](https://www.marinefree.com/wp-content/uploads/2025/4/1745576631/balmar-sg200-battery-monitor-kit-w-display-shunt-10m-cable-12-48-vdc-sg200-1745576636.webp)
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![Balmar SG205 Battery Monitor Kit w/Bluetooth Gateway - No Display [SG205]](https://www.marinefree.com/wp-content/uploads/2025/4/1745576796/balmar-sg205-battery-monitor-kit-w-bluetooth-gateway-no-display-sg205-1745576801.webp)
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![Balmar SG210 Battery Monitor Kit w/Display Shunt Gateway [SG210]](https://www.marinefree.com/wp-content/uploads/2025/4/1745576796/balmar-sg210-battery-monitor-kit-w-display-shunt-gateway-sg210-1745576801.webp)
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![Balmar SG230 Battery Monitor Kit N2K BT Gateway Color Display 12-48VDC [SG230]](https://www.marinefree.com/wp-content/uploads/2025/4/1745576824/balmar-sg230-battery-monitor-kit-n2k-bt-gateway-color-display-12-48vdc-sg230-1745576828.webp)
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![Balmar SmartShunt 350A - 12-48 VDC f/SG200 Display [SG2-0100]](https://www.marinefree.com/wp-content/uploads/2025/4/1745576631/balmar-smartshunt-350a-12-48-vdc-f-sg200-display-sg2-0100-1745576636.webp)
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![Balmar SmartShunt N2K 350AMP 12-48VDC f/SG200 Display [SG2-0130]](https://www.marinefree.com/wp-content/uploads/2025/4/1745576985/balmar-smartshunt-n2k-350amp-12-48vdc-f-sg200-display-sg2-0130-1745576990.webp)
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![BEP Tank Level Monitor Sender Interface [600-TLM-SIF]](https://www.marinefree.com/wp-content/uploads/2025/4/1745576693/bep-tank-level-monitor-sender-interface-600-tlm-sif-1745576697.webp)
$39.48
$78.96
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![Blue Sea 1732 Mini OLED Ammeter [1732]](https://www.marinefree.com/wp-content/uploads/2025/4/1745576521/blue-sea-1732-mini-oled-ammeter-1732-1745576525.webp)
$52.65
$105.29