SKU: 30273584989

Simarine 300A Shunt

Sale price$162.00 Regular price$180.00
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  • USA
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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21

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Description

Simarine 300A ShuntEnhance your power system with the SC303 a compact, all in one battery monitor designed for accurate, real time insight into your energy setup. With a built in 300A shunt and support for multiple sensor types, the SC303 is ideal for marine, RV, and off grid installations where precision and reliability matter most. 300A High Precision ShuntProvides complete battery monitoring, including real time current flow, voltage, and state of charge essential

Enhance your power system with the SC303 – a compact, all-in-one battery monitor designed for accurate, real-time insight into your energy setup. With a built-in 300A shunt and support for multiple sensor types, the SC303 is ideal for marine, RV, and off-grid installations where precision and reliability matter most.

300A High-Precision Shunt
Provides complete battery monitoring, including real-time current flow, voltage, and state of charge – essential for managing inverters, winches, thrusters, and other heavy consumers.

Dual Voltage Inputs
Monitor up to two independent voltage sources, supporting up to 75.0 V each – perfect for tracking battery banks or auxiliary systems.

Tank Level & Temperature Monitoring
Includes two resistance inputs that can be used for either tank level sensors or temperature sensors, offering additional system oversight.

JST Temperature Sensor Socket
A dedicated JST connector allows for quick connection of an external temperature sensor, enabling thermal monitoring of the battery compartment.

Versatile System Integration
Use the SC303 to monitor both load and charge sources such as shore power chargers, solar panels, or generators—while also keeping tabs on tank levels or compartment temperature.

Applications:

  • Inverters

  • Thrusters & winches

  • Solar & shore power charging

  • Generator monitoring

  • Freshwater/greywater tank level sensing

  • Battery compartment temperature tracking

Additional Information:

  • Shunt Capacity: 300A continuous

  • Voltage Inputs: 2 (up to 75.0 V each)

  • Resistance Inputs: 2 (tank level or temperature)

  • Temperature Socket: 1 (JST connector)

  • Height: 8 cm

  • Length: 3 cm

  • Width: 11 cm

Upgrade your battery monitoring experience with the SC303 – delivering reliable, detailed data from a single, space-saving module built for demanding power systems.

WHAT'S IN THE BOX?
Shunt SC303 
5 m data cable
1 m temperature sensor
3 m fuse protected voltmeter cable
Shunt Cover

Click Here To Download Manual
Click Here To Download SC303 Wiring Diagram

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 30273584989

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Judith Abraham
Phoenix, US
★★★★★ 5
Should have got this ages ago!
Color: Gold, Material Type: Stainless Steel
Heavy enough to stay in place, but light enough to pick up and carry to the cleanup site. Very simple, but elegantly fashioned.
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Reviewed in the United States on May 2, 2026
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Cynthia Willis
Lexington, US
★★★★★ 5
Great product, and looks great!
Color: Black, Material Type: Stainless Steel
Perfect and worth the price! Solid , sturdy and looks great! I recommend this product 100%.
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Reviewed in the United States on December 10, 2025
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NomdePlume
Lowell, US
★★★★★ 5
Good solid weight. Nice appearance.
Color: Brushed Nickel, Material Type: Stainless Steel
Nice solid weight. Elegant. Even though I'm only using it in my craft/maker space. :)
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Reviewed in the United States on March 4, 2026
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arcy
Fort Morgan, US
★★★★★ 5
Love it
Color: Brushed Nickel, Material Type: Stainless Steel
Great quality works really well
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Reviewed in the United States on March 16, 2026
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C. Witt
Lowell, US
★★★★★ 4
Heavy Duty Paper Towel Holder
Color: Brushed Nickel, Material Type: Stainless Steel, Color: Brushed Nickel, Material Type: Stainless Steel
Nice looking, heavy duty paper towel holder. Looks like it'll be durable. The top did have a couple of dark, tarnished looking spots but it's not too noticeable.
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Reviewed in the United States on June 2, 2023

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