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![ARCO Marine 500A/50mV Shunt [ST500]](https://www.marinerailparts.com/wp-content/uploads/2026/10/arco-marine-500a-50mv-shunt-st500.webp)
ARCO Marine 500A/50mV Shunt [ST500]
Original price was: $25.16.$17.95Current price is: $17.95.
Sale!
![Balmar Bluetooth Gateway f/SG200 [SG2-0300]](https://www.marinerailparts.com/wp-content/uploads/2026/10/balmar-bluetooth-gateway-f-sg200-sg2-0300.webp)
Balmar Bluetooth Gateway f/SG200 [SG2-0300]
Original price was: $55.19.$41.70Current price is: $41.70.
Sale!
![Balmar Mounting Plate f/SG200 Display - Fits Smartguage Cutout [SG2-0402]](https://www.marinerailparts.com/wp-content/uploads/2026/10/balmar-mounting-plate-f-sg200-display-fits-smartguage-cutout-sg2-0402.webp)
Balmar Mounting Plate f/SG200 Display – Fits Smartguage Cutout [SG2-0402]
Original price was: $12.79.$6.42Current price is: $6.42.
Sale!
![Balmar SG210 Battery Monitor Kit w/Display Shunt Gateway [SG210]](https://www.marinerailparts.com/wp-content/uploads/2026/10/balmar-sg210-battery-monitor-kit-w-display-shunt-gateway-sg210.webp)
Balmar SG210 Battery Monitor Kit w/Display Shunt Gateway [SG210]
Original price was: $239.99.$181.74Current price is: $181.74.
Sale!
![Balmar SG230 Battery Monitor Kit N2K BT Gateway Color Display 12-48VDC [SG230]](https://www.marinerailparts.com/wp-content/uploads/2026/10/balmar-sg230-battery-monitor-kit-n2k-bt-gateway-color-display-12-48vdc-sg230.webp)
Balmar SG230 Battery Monitor Kit N2K BT Gateway Color Display 12-48VDC [SG230]
Original price was: $271.99.$177.92Current price is: $177.92.
Sale!
![Balmar SmartShunt 350A - 12-48 VDC f/SG200 Display [SG2-0100]](https://www.marinerailparts.com/wp-content/uploads/2026/10/balmar-smartshunt-350a-12-48-vdc-f-sg200-display-sg2-0100.webp)
Balmar SmartShunt 350A – 12-48 VDC f/SG200 Display [SG2-0100]
Original price was: $111.99.$78.61Current price is: $78.61.
Sale!
Blue Sea 1733 Mini OLED DC Voltmeter
Original price was: $55.19.$39.78Current price is: $39.78.
Sale!
Blue Sea 1839 M2 OLED Tank Monitor
Original price was: $291.19.$146.46Current price is: $146.46.
Sale!
Blue Sea 1842 M2 OLED Digital Bilge Meter
Original price was: $291.19.$165.32Current price is: $165.32.
Sale!
![Blue Sea 8041 DC Analog Micro Ammeter - 2" Face, 0-50 Amperes DC [8041]](https://www.marinerailparts.com/wp-content/uploads/2026/10/blue-sea-8041-dc-analog-micro-ammeter-2-face-0-50-amperes-dc-8041.webp)
Blue Sea 8041 DC Analog Micro Ammeter – 2″ Face, 0-50 Amperes DC [8041]
Original price was: $66.39.$36.54Current price is: $36.54.
Sale!
![Blue Sea 8051 DC Digital Voltmeter Panel [8051]](https://www.marinerailparts.com/wp-content/uploads/2026/10/blue-sea-8051-dc-digital-voltmeter-panel-8051.webp)
Blue Sea 8051 DC Digital Voltmeter Panel [8051]
Original price was: $188.79.$104.75Current price is: $104.75.
Sale!
![Blue Sea 8410 120/240 AC Digital Meter Panel [8410]](https://www.marinerailparts.com/wp-content/uploads/2026/10/blue-sea-8410-120-240-ac-digital-meter-panel-8410.webp)
![Camco Currituck 20oz Stainless Steel Tumbler w/Slider Lid [51861]](https://www.marinerailparts.com/wp-content/uploads/2026/10/camco-currituck-20oz-stainless-steel-tumbler-w-slider-lid-51861.webp)
