Seelevel II RV Tank Monitor Comparison Guide

With over 25-years in the RV industry and over 200,000 installations, the SeeLeveL II RV Holding Tank Monitor is a proven, reliable, liquid level monitoring solution. Garnet’s RV monitoring systems are known as “the gauge that works” for a reason. Garnet’s state-of-the-art digital technology provides percentage of full accurate tank measurement readouts - making it one of the most accurate monitors available on the market.
Model #
Tanks 		Pump
Switch 		Water
Heater
Switch 		LPG Battery Galley Alarm
Output 		RV-C Bluetooth
709 3 X X
709-2 2 X
709-2P 2 SPDT X
709-3 3 X
709-P3 3 SPDT X
709-P3W 3 SPDT X X
709-HP3W 3 SPDT SPST X X
709-BTP7 3 SPDT X X X
709-RVC 3 X X X X
709-RVC-PM 3 MOM X X X
709-RVC-NLP 3 X X X
709-4 4 X X
709-4P 4 SPST X X
709-4LP 4 X X X

The Garnet Seelevel RV Tank Monitoring System is a high-precision monitoring solution that provides accurate readings of RV holding tanks. Unlike traditional tank sensors that can give false readings due to waste and corrosion buildup, the Seelevel system uses external sensors that mount on the outside of holding tanks, eliminating common issues with internal probes.
Key Features:
- External sensor technology prevents false readings from debris and buildup
- Compatible with poly / plastic tanks
- Digital display shows tank levels in percentage increments
- Accurate to within ⅛ inch
- Works with fresh water, gray water, and black water tanks
- No internal sensors to clean or maintain
- Made in North America with reliable customer support
Installation Benefits:
- Non-invasive installation with no tank drilling required
- Sensors mount externally using 3M specialized adhesive
- Compatible with most RV tank configurations
- Can utilize existing wiring from old system for easy install
- Professional installation is recommended but not required
Practical Applications:
- Real-time monitoring of fresh water supply
- Accurate tracking of gray and black water tank levels
- Prevention of RV tank overflow situations
- Better trip planning with precise holding tank level information
- Reduced maintenance compared to traditional tank gauge probe systems
Technical Specifications:
- Operating voltage: 12V DC
- Display resolution: 0-100% in approximately 1% increments
- Sensor accuracy: ±⅛ inch
- Temperature range: -40°F to +140°F
- Display brightness: LED with day/night settings
- Warranty: Standard manufacturer coverage
Benefits:
- Eliminates guesswork in tank level monitoring
- Reduces RV maintenance costs
- Prevents unexpected tank full situations in your Camper
- Improves camping experience with reliable readings
- Long-term durability and reliability
- Peace of mind during extended trips