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It’s our unique technology that makes it work.

With over 23-years in the recreational vehicle market , the SeeLeveL ™ RV Holding Tank Monitor is your proven, reliable, liquid level monitoring solution. Our gauges have been installed by many high-end original equipment manufactures (OEM) companies.

Garnet’s RV monitoring systems are known as “the gauge that works” for a reason. Garnet’s unique digital technology provides a percentage-of-full accurate tank measurement readouts — one of the most accurate monitors available in the market.

What makes it better than other gauges?   The sender is external to the tank so it doesn’t get fouled by sewage; the display shows percentage with high accuracy. There are a wide range of models to cover any application.

holding tank monitoring systems

3-tank Monitor Series

Designed for RVs or Marine Vessels with three holding tanks as well as the battery voltage.  The level is shown in percentage full on an easy-to-read LED display. Will work on most plastic or poly holding tanks that contain any water-soluble products.  Will not work on metal tanks. 

Holding Tank Monitor – Model 709-HP3W

Features:

Monitors: Fresh, Grey, Black, and battery

LPG sensor connector:  Yes

Switches:  3-way pump switch, single-pole water heater switch

Systems include:  (1) display monitor, (3) tank senders, and (1) pigtail.

System buying option: The standard senders may be swapped out for other sender sizes.  

For convenience, a second display console can be added to the system by installing it in the service bay area by the holding tanks. Select the “Display monitor only” to purchase.

 

Purchase at RVupgrades.com by selecting the appropriate button.

 

 

 

Call:  1-800-617-7384, option 2. 

 

Holding Tank Monitor – Model 709-BTP3

One of our latest models is equipped with Bluetooth® wireless technology which allows you to view your tank levels on a mobile device.

Features:

Monitors: Fresh, Grey, Black, and battery

LPG sensor connector:  Yes

Switches: 3-way pump switch, single-pole water heater switch

Other:   Bluetooth, Programmable Alarm Output

Systems include:  (1) display monitor, (3) tank senders, and (1) pigtail.

System buying option: The standard senders may be swapped out for other sender sizes.  

Note:  If you want the Bluetooth® feature and already own another SeeLeveL system you can purchase and install the 709-BTP3 display only.  See wiring diagram. 

For convenience, a second display console can be added to the system by installing it in the service bay area by the holding tanks. Select the “Display monitor only” to purchase.

 

Purchase at RVupgrades.com by selecting the appropriate button.

 

 

 

Call:  1-800-617-7384, option 2. 

 

4-tank Monitor Series

Designed for RVs or Marine Vessels with four holding tanks as well as the battery voltage.  The level is shown in percentage full on an easy-to-read LED display. Will work on most plastic or poly holding tanks that contain any water-soluble products.  Will not work on metal tanks.

Holding Tank Monitor – Model 709-4P

One of our latest models has Bluetooth® wireless technology which allows you to view your tank levels on a mobile device.

Features:

Monitors: Fresh, Grey, Black, Galley and battery

LPG sensor connector:  No

Switches: 3-way pump switch

Systems include:  (1) display monitor, (4) tank senders, and (1) pigtail.

System buying option: The standard senders may be swapped out for other sender sizes.  

Note: For convenience, a second display console can be added to the system by installing it in the service bay area by the holding tanks. Select the “Display monitor only” to purchase.

 

Purchase at RVupgrades.com by selecting the appropriate button.

 

 

 

Call:  1-800-617-7384, option 2. 

 

optional senders and accessories

SeeLeveL Sender – Model 710-JS

Fits tank heights:  4 1/2” – 7” tall.  

Resolution:  1/4″ (6 mm)

Sender length range:  4″ – 6″ (*can only be used as a single)

Sender width:  2″

 

Purchase at RVupgrades.com by selecting the appropriate button.

 

 

Call:  1-800-617-7384, option 2. 

 

Model 710-ES

Fits tank heights:  5” – 13” tall.  

Resolution:  3/8″ (10 mm)

Sender length range:  4 1/2″ – 12″ (single sender) up to 25″ (dual senders)

Sender width:  2″

 

Purchase at RVupgrades.com by selecting the appropriate button.

 

 

*Currently not available in Canada.

 

Model 710-SS

Fits tank heights:  7” – 17” tall.  

Resolution:  1/2″ (13 mm)

Sender length range:  6″ – 16″ (single sender) up to 34″ (dual senders)

Sender width:  2″

 

Purchase at RVupgrades.com by selecting the appropriate button.

 

 

Call:  1-800-617-7384, option 2. 

 

709 Filler Plate

The 709 Filler Plate allows you to cover previous cut-outs that are too large when retrofitting a SeeLeveL II 709 Series monitor.

Dimensions:  6” Wide x 4.75” High

 

Purchase at RVupgrades.com by selecting the button.

 

 

Call:  1-800-617-7384, option 2. 

 

709 Gasket

The 709 Gasket is used to prevent the SeeLeveL II Series monitor from shorting when mounting to a metal surface.

 

 

Purchase at RVupgrades.com by selecting the button.

 

 

Call:  1-800-617-7384, option 2.