The SeeLevel Model 709 Tank Monitoring System is the perfect system to upgrade from an existing underperforming monitoring system that was included in your RV.

709 System Monitors:
- battery voltage
- fresh tank
- grey tank
- black tank
- LPG tank connection compatible with existing electric senders
Provides accurate tank level information using a percentage of full readout.
Tanks are monitored using external level sensing technology, preventing problems caused by debris build-up in the holding tank.
Tank senders connect to the display via a common bus network
- All senders can be connected using the same wire
Three different sender sizes available to fit your tanks
- 710-AR2 Sender:
  - Dimensions: 9" high x 2.20" wide
  - Resolution: .25" Segments
  - Measurable range: 3" to 9"
  - Tank heights from 3.5" to 10.5" (single sensor)
  - Up to 19.5" (dual stacked sensors).
- 710-ES3 Sender:
  - Dimensions 12.15” high x 2.20” wide
  - Resolution: .33" Segments
  - Measurable range: 4" to 12"
  - Tank heights from 4.5" to 14" (single sensor)
  - Up to 26” (dual stacked sensors)
- 710-SS2 Sender: Dimensions 16" high x 2" wide
  - Resolution: .44" Segments
  - Measurable range: 6" to 16"
  - Tank heights from 7" to 18" (single sensor)
  - Up to 34.5” (dual stacked sensors).
Sensors only work on plastic/polyethylene and fiberglass tanks
Detailed diagnostic information monitors sender operation.
The level is shown in percent on a three-digit LED display.
Uses common industry connector for ease of installation and servicing.
LPG tank connection is compatible with existing electric senders.
LPG can be factory calibrated, or at first fill of your tank.
The display requires 12 volts from the RV battery
- Monitor will function from 11 volts to 16 volts.
Common two wire conductor (signal and ground) is required from the display to each sender.
Current drain is less than 200mA.
Panel Dimensions: 4" W x 2.8" H x 1" D.
Cutout Size: 3" W x 1.8" H.
Weight: 5 lbs.
Includes:
- (1) Display monitor.
- (1) connector assembly/pigtail
- (4) mounting screws.
- (3) tank senders
Senders will not work on metal tanks.
Limited 1-Year Manufacturer Warranty.
See our SeeLevel Tank Monitor Comparison Guide to help you choose the right system for your RV.

SeeLevel 709 RV Tank Monitoring System

Seelevel 709 Monitoring System

Seelevel 709 Tank Sensor Installation