3-Tank Monitor Series
Relied on by RV owners across the world for dependable tank monitoring.
3-Tank Monitor Series


709 Features
Upgrade your RV with the SeeLeveL II 709 for precise fluid level monitoring in 5% increments—far more accurate than traditional third-based readings. Designed for flexibility, the 709 can monitor any three tanks, whether fresh, grey, black, or others. Installation is simple, often using existing wiring.
- Monitors: Fresh, Grey, Black, Battery voltage
- LPG: Connects to an existing LPG sensor
- Switches: No
Details
System includes: (1) display monitor, (3) tank senders, (1) pigtail, (4) mounting screws
Displays: If desired, you can add multiple displays to the system, allowing you to monitor tank levels from various locations.
Senders: When you purchase, you can select from three (3) sender option sizes.
Resources


709-3 Features
Upgrade your RV with the SeeLeveL II 709-3 for precise monitoring of fresh, grey, and black water levels in 5% increments—far more accurate than traditional third-based readings. Installation is simple, often using existing wiring. The 709-3 can monitor any three tanks, whether fresh, grey, black, or others. Installation is simple, often using existing wiring.
- Monitors: Fresh, Grey, Black, Battery voltage
- LPG: No
- Switches: No
Details
System includes: (1) display monitor, (3) tank senders, (1) pigtail, (4) mounting screws
Displays: If desired, you can add multiple displays to the system, allowing you to monitor tank levels from various locations.
Senders: When you purchase, you can select from three (3) sender option sizes.
Resources


709-P3 Features
The SeeLeveL II 709-P3 offers precise monitoring of fresh, grey, and black water levels in 5% increments—far more accurate than traditional third-based readings. Designed for added convenience, this model includes a built-in water pump switch, allowing you to control your pump directly from the display.
Installation is simple, often using existing wiring. The 709-P3 can monitor any three tanks, whether fresh, grey, black, or others. Installation is simple, often using existing wiring. the P3 model also comes with a 3-way pump switch.
- Monitors: Fresh, Grey, Black, Battery voltage
- LPG: No
- Switches: 3-way pump switch/single-pole
Details
System includes: (1) display monitor, (3) tank senders, (1) pigtail, (4) mounting screws
Displays: If desired, you can add multiple displays to the system, allowing you to monitor tank levels from various locations.
Senders: When you purchase, you can select from three (3) sender option sizes.
Resources
Premium digital liquid measurement systems
Garnet specializes in water level measurement technology, with a focus on sensors designed for use in the water tanks of recreational vehicles such as RVs, caravans, and motorhomes. These sensors are also compatible with marine applications, including pleasure boats.