Wireless Propane Tank Gauge - Mopeka Pro Check Sensor

Our review of the Mopeka Pro Check Sensor finds it most useful for grill owners, RVers, and anyone who wants to stop guessing how much fuel is left in a propane or butane tank. The biggest reason to buy is simple: the Pro Check gives reliable ultrasonic level readings displayed on your phone so you can monitor tanks without repeated manual checks. It installs with powerful magnets in seconds, supports both vertical and horizontal cylinders, and pairs to the free Tank Check app for on-the-go monitoring and alerts.

Key Features

• Wireless connectivity: The sensor transmits propane level data to the free mobile app so users get real-time updates without opening the tank compartment.
• Magnetic mounting: Powerful magnets and an ultrasonic measurement system allow quick, tool-free attachment to the underside of standard and custom tanks for secure placement during travel.
• Improved battery: The updated battery life reduces maintenance and keeps the monitor working for extended periods between replacements or charges.
• Enhanced accuracy: The Pro Check's latest patented ultrasonic sensor and temperature compensation provide better consistency than simple pressure-based indicators.
• Versatile fit: Designed to accommodate common LPG tanks from small 20 lb grill cylinders up to large 120 gallon or 420 lb tanks, including vertical and horizontal cylinders.
• App and remote options: The free Tank Check app supports unlimited tanks and configurable alarms, with optional WiFi bridge or monitor for remote access.

Who It's For

The Mopeka Pro Check is ideal for backyard grill owners, RV users, and anyone who stores multiple propane or butane cylinders and wants to avoid unexpected runouts. Its magnetic mount and app integration make it convenient for people who move tanks or travel on uneven terrain and need a sensor that stays put.

It may be less necessary for casual users who only run a small grill at home and prefer infrequent manual checks, or for buyers who require integrated hardware displays without using a phone or optional WiFi bridge. Those who need wired or mechanical gauges should look elsewhere.

Pros & Cons

Pros

• Easy, tool-free installation with strong magnets that hold on during travel.
• Accurate ultrasonic readings with tank temperature sensing for more reliable level estimates.
• Free Tank Check app with alarms and support for unlimited sensors and tanks.
• Works on a wide range of tank sizes and both vertical and horizontal cylinders.

Cons

• Bluetooth connectivity can be mixed for some users, so remote access requires the optional WiFi bridge or monitor.
• Battery life, while improved, has been noted by some users as a continuing consideration.

Specifications

Our Verdict

The Mopeka Pro Check Sensor is a practical upgrade for anyone who regularly uses propane or butane tanks and wants clear, app-based level monitoring. It balances convenient magnetic mounting, improved battery life, and more accurate ultrasonic readings to reduce guesswork and avoid mid-use runouts. For users willing to rely on Bluetooth or add the optional WiFi bridge for remote access, it represents good value and a tangible convenience improvement.

Frequently Asked Questions

Will the sensor work on my 20 lb grill tank?
Yes. The Pro Check is designed to fit common 20 lb grill cylinders as well as larger tanks.

Do I need extra hardware to monitor tanks remotely?
You can view levels on your phone via Bluetooth, but remote monitoring without a phone requires the optional Mopeka WiFi Bridge or the Mopeka Monitor.

How is accuracy affected by temperature?
The sensor includes temperature compensation to improve level estimates across normal outdoor temperature ranges, which helps the ultrasonic readings stay consistent.