SKU: 868232069

Simarine Battery Shunt 300A 2x Voltage, 2x Resistance, 1x Temperature

Sale price$162.82 Regular price$180.91
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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19

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Description

Simarine Battery Shunt 300A 2x Voltage, 2x Resistance, 1x TemperatureSimarine SC303 Active Combo Shunt: Comprehensive Battery and Tank Monitoring The Simarine SC303 Active Combo Shunt represents a significant upgrade for marine, caravan, and off grid power systems. Designed specifically for seamless integration with the PICO battery monitor, this advanced module combines precise high current sensing with versatile tank level and temperature monitoring. By consolidating multiple sensor inputs into a single unit, the

Simarine SC303 Active Combo Shunt: Comprehensive Battery and Tank Monitoring

The Simarine SC303 Active Combo Shunt represents a significant upgrade for marine, caravan, and off-grid power systems. Designed specifically for seamless integration with the PICO battery monitor, this advanced module combines precise high-current sensing with versatile tank level and temperature monitoring. By consolidating multiple sensor inputs into a single unit, the SC303 streamlines your wiring and provides a complete overview of your critical system data in one location.

High-Capacity Current Sensing for Heavy Loads

Engineered to handle substantial power demands, the SC303 provides continuous current monitoring up to 300A, making it highly effective for tracking heavy consumers like large inverters, bow and stern thrusters, and anchor winches. It is equally capable of monitoring high-output current generators such as shore power chargers, alternators, and solar panel arrays. With a peak current rating of 400A for under one minute and up to 700A for less than five minutes, this active shunt easily accommodates the starting surges of heavy-duty equipment without compromising accuracy.

Versatile Inputs for Complete System Visibility

Beyond standard battery tracking, the SC303 functions as a multi-purpose central monitoring hub. It features two dedicated voltage inputs compatible with systems up to 75V, making it highly adaptable for standard 12V, 24V, and 48V setups. Additionally, the unit incorporates two resistance inputs specifically designed for tracking fluid levels in fuel, fresh water, or grey water tanks. A dedicated socket for an NTC 10k temperature sensor allows you to keep a close eye on battery banks or ambient cabin temperatures, ensuring your critical equipment operates safely within acceptable thermal limits.

Robust Construction and Easy Integration

Built for the demanding conditions typically encountered in marine and mobile off-grid environments, the SC303 features heavy-duty M10 bolt terminals that ensure a secure, low-resistance connection for your main battery cables. Communication with your PICO display is handled effortlessly via dual SiCOM RJ9 data ports, allowing for simple data daisy-chaining with other Simarine expansion modules. A fully integrated 6-way screw terminal block further simplifies the connection of your secondary voltage and resistance sensors.

Key Features

  • Continuous 300A current monitoring with peak capacities up to 700A for heavy motor startups
  • Broad voltage compatibility up to 75V, perfectly suited for 12V, 24V, and 48V power applications
  • Two independent voltage inputs for monitoring secondary starting or auxiliary battery banks
  • Two resistance inputs for accurate, real-time fluid tank level tracking
  • Dedicated NTC 10k temperature sensor port for essential battery thermal monitoring
  • Heavy-duty M10 bolt terminals providing secure, high-current electrical connections
  • Dual SiCOM RJ9 ports for streamlined data communication and network expansion

Streamline Your Off-Grid Power Management

Whether you are upgrading an existing marine electrical system or outfitting a new off-grid caravan, precise system data is critical for reliable energy management. The SC303 eliminates the need for separate standalone tank monitors and voltage sensors, combining them into one highly accurate, easy-to-install package. Upgrade your power setup with the Simarine SC303 Active Combo Shunt today and gain total visibility over your battery capacity, power consumption, and essential fluid levels.

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: 868232069

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Verified Purchase
DesertRoads
Houston, US
★★★★★ 5
Great Ball Launcher!
Style: Sport, Size: Large
Our dogs love this ball launcher! I can throw the ball long distances without any arm strain. The balls wear out, and as described by others, tennis balls don’t fit. Buy extra balls if this is of concern. We bought a few of the “Chuck It” rubber 3” balls and they have worked well for our dogs. It’s a great value and fun for the dogs.
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Reviewed in the United States on March 28, 2025
C
Verified Purchase
Cheri Who
San Leandro, US
★★★★★ 5
Chuckit!! Just Chuck it!!
Style: Sport, Size: Large
Chuck it further than your skinny little arms can chuck it. Doggo loved this, I loved this and when we were done Doggo promptly hid it under the porch so I couldn’t take it from him. It’s not a squeaky toy, it’s for fetch. You wing it out toward the yard and it flies, bounces if it’s lucky then is attacked in an adoring manner. We like it!!
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Reviewed in the United States on May 31, 2026
D
Verified Purchase
Don L. III
Birmingham, US
★★★★★ 5
Great to exercise the dogs!
Style: Sport, Size: Large
Great to throw 3” KONG Ball (RED) with hole thru it! The thrower is the best to exercise dogs with retrieving balls!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
M
Verified Purchase
Michael F.
Lowell, US
★★★★★ 5
The best way to tire your dog out in the dark
Size: 25in
My 7 month Golden Retriever puppy has way too much energy. And I go to work in the dark, and come home in the dark. This was the solution. First of all if you get this, I suggest a UV flashlight to charge it. Most of these phosphors for glow in the dark items have very strong optical absorption in the UV, and the UV will charge both the ball and the launcher in seconds. I shine the light at the launcher with the ball in it, since you can then see where the launcher is when you are trying to load the ball. I use this UV flashlight, which takes qty=3 AA batteries. https://www.amazon.com/gp/product/B01A5KLUG2/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 I have never used a launcher before and I learned it within about 10 throws. It is easy to have a basic competence. I live in a suburban area and I send the ball across front lawns, trying to avoid the street, or hitting my neighbors parked cars. I can consistently do this now with the launcher, which is a big improvement over the old tennis racket and ball routine. I got the 25" medium ball launcher, which also works for tennis balls. The scoop goes easily over the Chuck-it balls. My older dog is not taking to it, since he was trained to sit and give the ball. This works better if you have the dog drop the ball so you can scoop it. The glow in the dark ball has 2 holes (think wiffle) that have a low pitch whooshing whistle as you toss it. This is great for my puppy who gets easily distracted as the glowing ball and the noise it makes really helps him propery mark it. Overall I think the dog retrieves better in the dark as there are fewer distractions, and I feel better about the dark for retrieving since there is no traffic early in the morning (both foot and auto). The ball has some squish to it and the pup loves to chew on it as he brings it back. I do not let him play with it when we are not retrieving...better for him to destroy his chew bones and ropes. It took him about 5 tries to get the hang of picking up the new ball. The older dog (13yr old golden) does not like it and only goes for tennis balls. I can tell already this is my puppy's favorite toy ever. I put it up out of reach across coat hooks in the entryway, and that pup will sit there staring at it, then at me, then at it hoping that I will go out and use it. With bounces and rolls and the puppy missing the grab this has gone 100-150' across 3 front lawns. I am looking forward to giving it a go in the park on the weekend. Main problems with the pup now are he likes to parade around me with the ball when he comes back, then lie down and try to give it a proper chew. If I use my launcher to pick it up, I have to put my foot between him and the ball since he will try to get it back fast. Overall this launcher means faster pickup, faster release, more accurate release, good distance, and a better run per time allocation than the old tennis racket and ball routine.
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Reviewed in the United States on January 29, 2020
B
Verified Purchase
Babs Kilgore
Waukegan, US
★★★★★ 5
Chuck a Glowing Ball
Size: 18in
This baby ball checker is good for a medium sized dog because of the size of the ball which glows in the dark. It is a handy feature for playing with the dog at night. It is fairly priced, durable. It doesn’t squeak and is not made to be chewed. F your dog likes to run around after balls this should be good for you.
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Reviewed in the United States on December 19, 2025

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