Sealand TankWatch 4 with Vent 45" Pro (Part Number 313600115)
Keeping track of what's happening inside a boat's holding tank shouldn't feel like guesswork, and that's exactly the problem this system solves. The Sealand TankWatch 4 with Vent, part number 313600115, gives owners a clear, at-a-glance readout of tank levels using a simple four-light panel that's easy to read even in low cabin light. Built around three micro float switches mounted on adjustable stems, the system tracks liquid levels from empty to full and lights up one indicator at a time, so there's never any confusion about where things stand.
This particular version is designed for tanks up to 45 inches deep and includes the vent hose connection, which helps equalize pressure and keeps the float switches operating smoothly over time. The package comes complete with the tank cap, float switch assembly, indicator panel, and stainless steel mounting hardware, making it a practical all-in-one solution whether it's going into a new installation or replacing an aging monitor. Its low power draw means it won't put much of a dent in a boat's electrical system, and the panel's international symbology makes it intuitive for anyone stepping aboard.
Beyond convenience, the TankWatch 4 adds a layer of everyday peace of mind. Knowing when a black water or gray water tank is nearing capacity, or when a fresh water supply is running low, helps avoid unpleasant surprises mid-trip. For owners who want extra protection, the system can also work with an optional shut-off relay that automatically stops the toilet or water pump once a tank reaches its limit, adding a smart safeguard to routine boating life.
TankWatch 4 with Vent 45" (313600115): Key Features, Applications, and Specifications
Key Features
- Four-light panel shows empty, low, mid, and full levels at a glance
- Three micro float switches mounted on adjustable stems for accurate readings
- Vent hose connection helps equalize pressure for consistent float operation
- Only one indicator light active at a time to reduce confusion and save power
- Deluxe panel design complements interior decor with international symbology
- CE and IMCI approved for electromagnetic compatibility
- Compatible with optional plug-in shut-off relay for automatic pump or toilet shutdown
- Includes stainless steel mounting hardware for secure installation
Applications
- Marine black water (waste) holding tanks
- Marine gray water holding tanks
- Potable fresh water tank monitoring
- RV and mobile living holding tank systems
- Any rigid tank up to 45 inches in depth, especially when paired with the optional 3-inch NPT mounting flange
Specifications
- Product Name: TankWatch 4 Level Monitor System
- Part Number: 313600115
- Probe Length: 45 inches (max installed length 43-3/4 inches)
- Electrical (12VDC): 0.017 amps without relay, 0.152 amps with relay
- Electrical (24VDC): 0.014 amps without relay, 0.072 amps with relay
- Float Switch Rating: 20 watts with resistive load
- Vent Option: Included
- Face Plate Material: Polycarbonate
- Maximum Circuit Load: Not to exceed 30 amps
- Recommended Wire Gauge: 16 or 18 gauge copper stranded wire
FAQs
Q: What tank depths is the TankWatch 4 with Vent 45" designed for?
A: This model is built for rigid tanks up to 45 inches deep, with a maximum installed probe length of 43-3/4 inches to fit the tank properly.
Q: Does this system work for fresh water tanks as well as waste tanks?
A: Yes. The TankWatch 4 is designed for wastewater, gray water, and potable fresh water tanks, and the float positions can be adjusted depending on the application.
Q: What does the vent option on this model do?
A: The vent hose connection helps equalize air pressure inside the cap assembly, which supports smoother and more reliable float switch movement over time.
Q: Can this panel automatically shut off the water pump or toilet?
A: Not on its own, but it becomes possible with the optional plug-in relay, which shuts down the toilet system when a waste tank is full or the water pump when a fresh water tank is empty.
Q: What's included in the 313600115 package?
A: The kit includes the tank cap, three micro float switches, the lighted indicator panel, and stainless steel mounting hardware needed for installation.
CLRMarine
