Holding Tank Solutions
The tank monitor
that works
Digital liquid measurement systems that are simple
SeeLeveL systems are simple because they offer accurate, maintenance-free tank monitoring with external sensors that prevent common issues. End-users benefit from reliable, percentage-based readings, while OEMs get a flexible, easy-to-integrate solution compatible with RV-C and NMEA 2000, enhancing product value and user experience.
App integration
On our premium Bluetooth-enabled version you will be able to sync it up with our app (available in the EU on both IOS and Android) to see the Realtime levels on your phone.
Measure up to seven different tanks
Our SeeLeveL advanced systems is designed to monitor from one to seven holding tanks, including various configurations such as 2 fresh, 3 grey, and 2 black tanks.
2-Tank Monitor Series
SeeLeveL II RV Two-Tank Series – Designed for RVs and motorhomes, this system provides precise tank level readings in two tanks in 5% increments for fresh and black water tanks, and also monitors the battery voltage. Some models also include an integrated pump switch.


709-2 Features
- Monitors: Fresh, Black, Battery voltage
- LPG: No
- Switches: No
Details
System includes: (1) display monitor, (2) 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


709-2P Features
- Monitors: Fresh, Black, Battery voltage
- LPG: No
- Switches: 3-way pump switch/single-pole
Details
System includes: (1) display monitor, (2) 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
3-Tank Monitor Series


709 Features
- 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
- 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
- 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
SeeLevel Soul
The SeeLeveL Soul is a Data Link Module that collects tank level information from the SeeLeveL senders and transmits it to a multiplex system through the RV-C bus. With no visible display, it is designed to be concealed inside the RV so OEMs can avoid using up valuable wall or cabinet space.

SeeLevel Soul Features
- Includes: (1) data link module, (1) pigtail
- Monitors: Up to seven tanks (Fresh, Grey, Black, Fresh 2, Grey 2, Black 2, Grey 3), and Battery voltage
- LPG: Connects to an existing LPG sensor
- Senders: Compatible with the 710-AR2, 710-ES3, AND 710-SS2 senders. Senders sold separately.
- Other: RV-C Interface multiplex compatible, Configures through the SeeLeveL Soul user interface
Details
All SeeLeveL Sender Model can be utilized by the Soul Module. The first Fresh, Grey, and Black water tanks are the only ones that can use the 710-JS, 710-ES, and 710-SS senders. The 710-AR and 710-ES2 senders can be programmed for any of the 7 tanks. The sender programming tabs can be clipped so that the Soul will recognize them as a particular tank that maintains common bus wiring, hence lowering the overall amount of wire needed.
Resources
OEM Partners of SeeLeveL Tank Monitors


























































Compatible with 709-BTP7
Instant Tank Readings, Wherever You Are
The SeeLeveL RV 2.0 app is compatible with the 709-BTP7 model and offers a wide range of powerful features to enhance your RV monitoring experience. Effortlessly monitor your tank levels and set alarms when your tanks are getting too low or too full, right from your phone or tablet. With the SeeLeveL RV 2.0 app, managing your tanks has never been easier.

Resources and customer support
SeeLeveL Sender Installation Video
A comprehensive installation guide for the SeeLeveL II Tank Monitoring System! In this video, we walk you through the step-by-step process of installing the senders for the SeeLeveL tank monitors. For more video and written resources please navigate to our resources page.
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.