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Know exactly how much fresh water you have left, without relying on float-style guesswork. This Bluetooth Water Tank Gauge uses your phone as the display and shows the remaining water in liters or gallons, giving van owners and other mobile users a simpler way to monitor water usage with more confidence. Designed by Topargee in Australia, this gauge is built for freshwater tank monitoring in vans, RVs, trailers, boats, and off-grid setups. It works with pressurized and gravity-fed systems, installs inline on the water line, and does not require anything to be drilled into the tank. If you prefer to use a mounted LCD screen instead of your phone, see the Flush Mount Water Tank Gauge page.
This gauge tracks water use from the programmed starting amount. After refilling the tank, the gauge must be reset so the stored total matches the amount of water in the tank.
The sender installs inline on the water line and the gauge tracks water use from the programmed tank amount. Your phone displays the remaining water in liters or gallons through the Bluetooth app.
No. The gauge uses Bluetooth, so you can check water levels without an internet connection when you are within communication range.
Yes. After you refill the tank, reset the gauge so the stored total returns to the amount currently in the tank.
Yes, but you need to update the gauge total to match the amount of water currently in the tank so the count remains accurate.
Yes. The app remembers the device, and the gauge stores the settings and totals in the Bluetooth module.
Yes. It can run on 2 AA batteries or with the optional Topargee 12V adapter.
No. Do not wire 12V directly to the gauge. Use the correct 12V adapter.
For best results, install the sender about 200 mm after the pump and away from 90 degree elbows. If space is limited, it can be fitted before the pump.
No. The sender and extension leads should not be cut or joined. Use the proper extension lead if you need more length.
The sender has 1/2 in BSP male threads. Many customers use 1/2 in BSP female to 1/2 in NPT male adapters, or other compatible plumbing fittings that suit their hose and system.
California Proposition 65 Warning: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
We understand that every van setup is unique. That's why we offer CAD-verified roof layouts for customers who have purchased or plan to purchase an Orion roof rack - so you can maximize space and fit exactly what you need, where you need it. Request a layout here ›
We offer free shipping to the lower 48 states on all products. Orders shipping to Alaska, Hawaii, Canada, or international destinations may have additional shipping charges calculated at checkout or quoted separately. Local pickup is also available at our McMinnville, Oregon warehouse by appointment.
Most purchases can be returned within 30 days of purchase if they are in new, resalable condition with original packaging. A 20% restocking fee applies; return shipping is the customer’s responsibility, and some items are final sale or not eligible for return. For full details, please see our Shipping Policy and Return Policy.
I just finished the install of the MaxxFan Deluxe, replacing a stock vent fan in our new Class C MH. Following the written (and online ‘how to’ videos) guidance, the install was straightforward. Most of the 3.5 hour job was spent cleaning off the old lap sealant in preparation for the new fan.
Fan works well in all functions. Thank you MaxxAir for a good product and thank you Orion for a great sales price!
Tonto H.
So quiet. Easy to install. We received the wrong item from Orion (black interior control panel vs white) We contacted them via email and they immediately gave us several options to make it right. The fan works great and the customer service Orion provides is top notch.
Orion Van Gear offered the best pricing on my two new MaxxAir MaxxFan Deluxe fans and they arrive SO fast. The install on our our 5th wheel went exceptionally well. Thank you for the great experiences.
Hi Jamye, Sorry about the mix-up with the interior panel, but we're glad we could resolve it quickly. Thanks for your kind words and video! Its a slick fan!
Amazing product so far. Big pro is it's low draw on my jacket 600v. 4 days of use and the battery percentage is still at 70%. Convenience of the remote being able to be used from anywhere. The noise level is very low at 40-50% fan power. I chose this unit instead of maxxair because it matched my van aesthetically and it's very low profile that i'm still able to park inside my work's parking structure. The con was during installation, this unit did not come with a sleeve that bridges the gap from the headliner to the fan itself. It did not sit flush and the manual **** that pushes up the metal rod(the longest one) does not reach because of it. I have to rely on the remote. Very good purchase and it's perfect for what i use it for.
We’re glad to hear the NomadicArk fan has been working well for your setup, especially the low power draw, quiet operation, remote control, and low-profile fit for parking structures.
One note on the install: the AirPlus is designed differently than a MaxxFan and does not use or include an interior sleeve. The fan is rated for a maximum roof thickness of about 3 1/8'. By comparison, a MaxxFan 7500K includes a sleeve-style interior garnish that can accommodate a thicker roof/headliner stack, up to about 6'.
Thanks again for the feedback, and we’re happy it ended up being a great fit for your van.
