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Garnet 709-BTP7 SeeLevel II Bluetooth Tank Monitor - Up to 7 Tanks + LPG + Pump Switch - Smartphone App

Garnet 709-BTP7 SeeLevel RV II Tank Monitoring System with Bluetooth

Garnet 709-BTP7 SeeLevel II Tank Monitoring System with Bluetooth

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List Price: $260.11

: $249.96

You save $10.15!

Part Number: 709-BTP7_System
Manufacturer: Garnet Instruments

Quantity in Stock :18

Availability: In Stock

Select Tank Sensor Sizes

Fresh Water Tank*:

Grey Water Tank*:

Black Water Tank*:

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Garnet SeeLevel II 709-BTP7 Bluetooth Tank Monitoring System – Up to 7 Tanks

The ultimate SeeLevel II upgrade! The Garnet 709-BTP7 monitors up to 7 water tanks PLUS LPG – all viewable from your smartphone via the SeeLeveL RV 2.0 app. Check tank levels from anywhere in your RV (up to 30 feet), set customizable high/low alerts, and enjoy all the accuracy of SeeLevel's external sensor technology with modern Bluetooth convenience.

Overview

The Garnet 709-BTP7 SeeLevel II is Garnet's most advanced tank monitoring system, combining proven external sensor technology with Bluetooth connectivity for smartphone monitoring. This flagship model supports up to 7 tanks (2 fresh, 3 grey, 2 black), monitors LPG levels, includes a pump switch, and features programmable alarms – all accessible from your phone or the built-in LED display.Up to 7 TanksBluetoothPump SwitchLPG

📱 Bluetooth Connected

Monitor from your smartphone

🔔 Custom Alerts

High/low tank notifications

🚰 Up to 7 Tanks

2 Fresh, 3 Grey, 2 Black

⛽ LPG + Pump Switch

Complete system control

📲 SeeLeveL RV 2.0 App – Monitor From Your Phone!

The free SeeLeveL RV 2.0 app connects to your 709-BTP7 via Bluetooth, letting you check tank levels from anywhere within range (up to 30 feet / 9 meters).

App Features:
• Real-time tank level percentages on your phone or tablet
• Customizable alerts – get notified when tanks are too high or too low
• Battery voltage monitoring
• Easy-to-read dashboard interface
• Available for both iOS and Android

Device Requirements:
• Android: Bluetooth 4.1, Android 5.0 (Lollipop) or newer
• iOS: iPhone, iPad, or iPod touch running iOS 11.3 or later

Download from the Google Play Store or Apple App Store – search for "SeeLeveL RV" or "Garnet RV".

📋 Not Sure Which SeeLevel Model You Need?

The 709-BTP7 is ideal if you want Bluetooth smartphone monitoring, need to monitor more than 3 tanks, or want the most feature-rich SeeLevel system available. Use our SeeLevel II Comparison Guide to compare all models.

Why Choose the 709-BTP7?

Bluetooth convenience: Check levels from bed, the couch, or outside – no need to walk to the display panel
7-tank capacity: Perfect for RVs with multiple grey tanks, galley tanks, or dual fresh/black tanks
Programmable alerts: Set custom thresholds for each tank – get notified before problems occur
Pump switch included: Control your water pump right from the display
LPG monitoring: Track propane levels via your existing tank sender
Future-proof: Replaces discontinued models like 709-4LP and 709-4P

📍 Add a Second Display – Monitor From Multiple Locations!

Want a physical display in multiple locations? The common bus wiring allows you to connect additional displays to the same sensor network. Simply add a 709-BTP7 Monitor Only – no additional sensors needed!

Note: When using dual displays, one must be set to "secondary mode" to avoid reading conflicts.

Why SeeLevel II Outperforms Factory Monitors

Traditional RV tank monitors use probes that extend inside the tank. These probes quickly become coated with waste residue, toilet paper, and struvite buildup – causing the dreaded "always shows full" problem.

The SeeLevel II difference: Sensors mount externally on the tank wall using 3M adhesive. They measure tank levels through the plastic tank wall using capacitive sensing technology:

No fouling: Sensors never contact tank contents
No false readings: Accurate levels regardless of tank condition
No maintenance: Install once and forget it
Better accuracy: ±⅜" precision vs. vague quarter-tank guesses

✅ What the 709-BTP7 Monitors

• Battery Voltage: Know when batteries need charging
• Fresh Water (up to 2): Track multiple fresh tanks
• Grey Water (up to 3): Monitor grey, galley, and additional grey tanks
• Black Water (up to 2): Track multiple waste tanks
• LPG/Propane: Monitor propane level via existing sender
• Pump Switch: 3-way pump control built into display

LPG/Propane Monitoring – How It Works

The 709-BTP7 connects to your RV's existing propane tank sender (the sensor built into your LP tank gauge). It does NOT include a propane sensor – it uses the one already installed in your RV.

Most RVs with permanent/built-in propane tanks have a sender already installed
Look for wiring from your tank's dial gauge (often called "LPG gauge sensor" or "remote ready dial")
Portable DOT cylinders (20lb BBQ-style tanks) typically do NOT have senders
Calibrate by filling tank and pressing LPG + BATT buttons simultaneously for 5 seconds

Choose Your Sensor Size

The 709-BTP7 system comes with 3 sensors. Choose the size that best fits your tanks. Additional sensors can be purchased separately for expanded configurations:

Sensor	Length	Resolution	Ideal Tank Height
710-AR2	9"	0.25"	3.5" – 10.5" (single) Up to 19.5" (stacked)
710-ES3	12"	0.33"	4.5" – 14" (single) Up to 26" (stacked)
710-SS2	16"	0.44"	7" – 18" (single) Up to 34.5" (stacked)

Tip: The 710-ES3 (12") is the most popular choice. Do NOT mix sensor types when stacking.

⚠️ Upgrading From an Older SeeLevel System?

If you already have a SeeLevel II system installed (709-P3W, 709-HP3W, 709-4P, etc.), you can upgrade to Bluetooth by purchasing just the 709-BTP7 Monitor Only and connecting it to your existing sensors.

Note: If replacing a 709-HP3W, you will lose the water heater switch functionality (the BTP7 has pump switch only).

🚫 Plastic Tanks Only

SeeLevel II sensors work on plastic/polyethylene and fiberglass tanks only. They will NOT work on metal tanks. Tank walls must be 3/8" (10mm) thick or less.

Installation Overview

Most RV owners can install the SeeLevel II system themselves:

Plan installation: Identify tank locations and measure tank heights
Clean tank surfaces: Sensors adhere with 3M adhesive – surfaces must be clean and dry
Trim sensors to length: Cut sensors to match tank height (cut between segments)
Mount sensors: Adhere to outside of tank wall, near bottom
Run wiring: Connect sensors via 2-wire bus (can often reuse existing wiring)
Connect LPG: Wire green LPG wire to existing propane tank sender
Install display: Mount display panel in desired location
Program sensors: Tab-clipping identifies each sensor to the system
Download app: Install SeeLeveL RV 2.0 and pair via Bluetooth

Complete installation instructions included. For detailed guidance, download the 709-BTP7 Manual (PDF). Professional installation recommended if you're uncomfortable with electrical work.

Built-in Diagnostics

The SeeLevel II includes diagnostic capability that allows you to check the operating characteristics of each sensor. If a sensor develops a problem, the display can show you the signal level and help identify the issue.

Quick Reference

Model	709-BTP7
Series	SeeLevel II (Bluetooth)
Max Water Tanks	7 (2 Fresh, 3 Grey, 2 Black)
LPG Monitor	Yes – via existing sender
Battery Monitor	Yes – Voltage readout
Pump Switch	Yes – 3-way switch
Bluetooth	Yes – SeeLeveL RV 2.0 App
Alarm Output	Yes – Programmable
Display Type	3-digit LED + ALT button
Accuracy	±⅜" (±10mm)

Electrical Specifications

Operating Voltage	11V – 16V DC
Nominal Voltage	12V DC
Fuse Rating	7.5 Amps max
Pump Switch Rating	7.5 Amps max (relay required if higher)
Wiring	2-wire common bus

Bluetooth Specifications

Bluetooth Version	4.1
Range	Up to 30 ft (9 m)
Android Requirement	Android 5.0+ (Lollipop)
iOS Requirement	iOS 11.3+
App Name	SeeLeveL RV 2.0

Display Dimensions

Panel Size	4"W x 2.8"H x 1"D
Cutout Size	3"W x 1.8"H

What's Included

✓ 709-BTP7 Bluetooth Display Panel

✓ Wiring pigtail/harness

✓ (3) Sensor boards (choose size at checkout)

✓ Installation instructions

Need more than 3 sensors? Purchase additional sensors separately for expanded configurations.

🔌 Upgrade Your Existing System!

Already have SeeLevel II sensors installed? Upgrade to Bluetooth by purchasing just the 709-BTP7 Monitor Only and connecting it to your existing sensor network.

Sensor Options

710-AR2 (9")	Best for low-profile tanks 3.5"-10.5"
710-ES3 (12")	Most popular – fits tanks 4.5"-14"
710-SS2 (16")	For taller tanks 7"-18"

Also Available

709-BTP7 Monitor Only	Upgrade existing system to Bluetooth
Filler Plate	Cover larger cutout from old display
Display Gasket	For mounting on metal surfaces

→ View Complete SeeLevel II Comparison Guide

📄 Documentation

Manual: 709-BTP7 Manual (PDF)
App: SeeLeveL RV 2.0 (iOS & Android)
Support: garnetinstruments.com/support
Warranty: 1 Year Limited

Seelevel 709-BTP7 Bluetooth Monitoring System

Seelevel Tank Sensor Installation

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