Before You Begin

Before permanently mounting your TankMaster, it’s important to power it up, connect it to the mobile app, and verify sensor operation. This ensures each unit is properly configured before installation.

Step 1: Download the App

1.  Search for “RiVöt TankMaster” in the App Store (iOS) or Google Play (Android).

2.  Download and install the app on your phone or tablet.

3.  Open the app and enable Bluetooth (and Location, if prompted).

Step 2: Power Up the TankMaster

1.  Connect the TankMaster sending unit to a 5 V DC USB power source (such as an RV’s 12 V-to-5 V converter, vehicle USB port, or USB battery pack) using the included USB-C power cable.

2.  The red status LED  will begin flashing confirming power and that the unit is operating.

Step 3: Pair and Configure

1.  In the TankMaster app, tap on the tank you wish to pair with the TankMaster

2.  Choose your TankMaster from the list (default name: TM-XXXX).

Step 4: Verify Sensor Operation

1.  With the unit powered, press gently on each sensor’s face or hold it against a filled area of the tank to confirm detection in the app.  The red LED on the sensor should light up if it detects liquid.

2.  Ensure each sensor responds correctly before proceeding with installation.

3.  Once verified, disconnect the power and prepare for mounting.

Installation Planning

Before installing your TankMaster system, take a few minutes to plan your layout.

Proper placement of the sensors and the TankMaster sending unit ensures accurate readings, reliable wireless performance, and a clean, durable installation.

Choosing Mounting Locations

Each TankMaster unit monitors one tank.  You’ll need to decide where to mount both the sending unit and its four contactless sensors.

Sensor Placement on the Tank

• • Mount externally – Sensors attach to the outside surface of the tank wall. No holes or penetrations are required.
  • Vertical orientation – Place sensors vertically along the side of the tank, evenly spaced from bottom to top.
  • Example:
    • S1 (Bottom) – Low or Empty
    • S2 – 25%
    • S3 – 50–75%
    • S4 (Top) – Full
  • Horizontal tanks – Mount sensors in a vertical column on one flat end or side.
  • Tall tanks (fresh water) – Mount sensors vertically along the height of the tank.
  • Avoid edges and seams – Place sensors on smooth, flat areas of the tank for best adhesion and accuracy.
  • Surface prep – Clean the tank area with isopropyl alcohol and let dry before applying the adhesive pads.

TankMaster Unit Mounting

• • The TankMaster can either be attached  to the tank either with the double-sided adhesive pads or mounted on a nearby wall or structural surface.
  • Keep it within reach of all four sensor leads.
  • Ensure access to the USB-C power connector.
  • Select a dry location that will stay dry, such as inside the RV interior or in a protected storage compartment that is protected from direct spray, heavy condensation, or excessive heat
  • The TankMaster enclosure is not waterproof. If it must be installed in an area that may be exposed to moisture, it must be properly protected and/or sealed to prevent water intrusion.

Cable Routing and Power Access

• Route sensor cables neatly along tank surfaces, avoiding sharp bends, heat sources, and moving parts.
• Connect the USB power lead last, after all sensors are installed and secured.

Environmental Considerations

The TankMaster enclosure is designed for dry, enclosed compartments and is not weatherproof or watertight. If installation in an exposed area is unavoidable, apply a suitable silicone sealant around cable entry points, seams, and LED openings to help protect the electronics. Avoid mounting in areas exposed to direct spray, standing water, heavy condensation, or prolonged high humidity.

Keep the unit within Bluetooth range (typically up to 30 ft) of your mobile device or a 100’ of your RV’s Wi-Fi router.