What Is the Best Propane Tank Monitor You Can Buy? Complete 2026 Guide
Top Propane Tank Monitors Compared, Reviewed, and Ranked by Price, Features, and Value
Introduction: The Search for the Best Propane Tank Monitor
If you're reading this article, you've probably realized that guessing your propane tank level is stressful, inconvenient, and potentially expensive. Walking to your tank in freezing weather, trying to read a gauge that's often inaccurate, and worrying about running out of propane in the middle of winter is no way to live.
The solution is simple: Install a propane tank monitor that shows your exact tank level on your smartphone, sends alerts when you're running low, and eliminates the risk of run-outs forever.
But with multiple products on the market, different technologies, and varying price points, which propane tank monitor is actually the best?
The Short Answer: After extensive research and comparison, the Generac 4G LTE Propane Monitor ($199-249, no monthly fee) is the best propane tank monitor you can buy for most homeowners. It offers unlimited remote range via cellular connection, requires no monthly subscription, and provides reliable, accurate monitoring with an easy installation process.
In this guide, we'll cover:
Top propane tank monitors ranked
Detailed product reviews and comparisons
Key features to look for
Who should buy each monitor
How to choose the right one for your needs
Part 1: Quick Comparison - The Top 5 Propane Tank Monitors
At-a-Glance Ranking
| Rank | Product | Type | Price | Monthly Fee | Best For |
|---|---|---|---|---|---|
| #1 ⭐ | Generac 4G LTE | Cellular | $199-249 | $0 | Best overall, no monthly fee |
| #2 | Mopeka Pro+ Cellular | Cellular | $199.99 | $5-15/month | Cellular with advanced app |
| #3 | Mopeka Pro Check | Bluetooth | $65-73 | $0 | Best budget option |
| #4 | Otodata Nee-Vu | Cellular | $150-200 | $3-5/month | Alternative cellular |
| #5 | Smart Oil Gauge | WiFi | $150-180 | $0 | WiFi-connected homes |
Detailed reviews of each monitor below.
Part 2: Detailed Product Reviews
#1: Generac 4G LTE Propane Monitor - Best Overall ⭐⭐⭐⭐⭐
Price: $199 – $249 Monthly Fee: $0 (cellular service included) Technology: 4G LTE cellular Range: Unlimited (anywhere with cell service) Battery Life: 5+ years Installation: DIY magnetic mount (5 minutes)
Key Features
✅ No Monthly Fee - The standout feature. Cellular service is included in the purchase price, making this the only major cellular monitor with truly free ongoing service.
✅ Unlimited Remote Range - Check your tank from anywhere in the world via the Mobile Link app. No WiFi needed, no proximity required.
✅ Works with All Tank Sizes - Compatible with 120 to 1,000+ gallon propane tanks (above-ground and underground).
✅ Real-Time Alerts - Receive text and email alerts when your tank reaches low levels (customizable thresholds).
✅ Usage Tracking - Monitor propane consumption over time to understand your usage patterns.
✅ Easy Installation - Magnetic sensor attaches to tank bottom in 5 minutes. No tools required.
✅ Long Battery Life - 5+ years on standard batteries, even in cold climates.
✅ All-Weather Design - Works in temperatures from -40°F to 140°F.
✅ Trusted Brand - Generac is a leading manufacturer of home standby generators and power equipment.
Why It's the Best
The Generac 4G LTE stands out for one crucial reason: no monthly fee.
Most cellular monitors require a monthly subscription ($3-15/month) to cover cellular data costs. Over 5 years, that adds up to $180-900 in subscription fees alone.
Generac includes cellular service in the purchase price, making the total 5-year cost just $199-249 - significantly cheaper than any other cellular option.
Add to that:
Unlimited remote range
Reliable cellular connection
Easy installation
Trusted brand reputation
Excellent app
And you have the best propane tank monitor on the market.
Best For
Homeowners who want true remote monitoring
Those who want to avoid monthly fees
Anyone with above-ground or underground tanks (120-1,000+ gallons)
People who travel or are away from home frequently
Anyone who has experienced a propane run-out and never wants to repeat it
Pros and Cons
| Pros | Cons |
|---|---|
| ✅ No monthly fee | ❌ Higher upfront cost than Bluetooth monitors |
| ✅ Unlimited range | ❌ Requires cell service at tank location |
| ✅ Easy DIY installation | |
| ✅ Reliable cellular connection | |
| ✅ Long battery life | |
| ✅ Trusted Generac brand |
#2: Mopeka Pro+ Cellular Monitor - Best Advanced App ⭐⭐⭐⭐
Price: $199.99 Monthly Fee: $5 – $15 per month (subscription required) Technology: 4G LTE cellular Range: Unlimited Battery Life: 5+ years Installation: DIY magnetic mount
Key Features
✅ Cellular Connectivity - 4G LTE connection for remote monitoring from anywhere.
✅ Real-Time Monitoring - View tank level in the Mopeka app.
✅ Customizable Alerts - Set low-level thresholds and receive notifications.
✅ Usage Tracking and Predictions - Advanced app features to predict when you'll need a refill.
✅ Multi-Tank Support - Monitor multiple propane tanks in one app.
✅ Easy Installation - Magnetic sensor mounts to tank bottom.
Why It's Good
The Mopeka Pro+ Cellular offers solid cellular monitoring with an excellent app. The app includes advanced features like usage predictions, history graphs, and multi-tank support that some users prefer.
However, it requires a monthly subscription ($5-15/month), making it more expensive over time than the Generac option.
Best For
Homeowners who want advanced app features
Those who don't mind paying a monthly subscription
Users with multiple propane tanks to monitor
Pros and Cons
| Pros | Cons |
|---|---|
| ✅ Unlimited remote range | ❌ Monthly subscription required ($5-15/month) |
| ✅ Advanced app features | ❌ More expensive over 5 years ($500-1,100 total) |
| ✅ Usage predictions | |
| ✅ Multi-tank support |
#3: Mopeka Pro Check - Best Budget Option ⭐⭐⭐⭐
Price: $65 – $73 Monthly Fee: $0 Technology: Bluetooth Range: 30 – 100 feet Battery Life: 5+ years Installation: DIY magnetic mount
Key Features
✅ Lowest Price - The most affordable propane monitor option at $65-73.
✅ No Monthly Fee - No subscription costs.
✅ Smartphone App - View tank level on your phone via Mopeka app.
✅ Easy Installation - Magnetic mount attaches to tank in minutes.
✅ Long Battery Life - 5+ years on standard batteries.
The Key Limitation
This is NOT a true remote monitor.
The Mopeka Pro Check uses Bluetooth, which means:
You must be within 30-100 feet of your tank to check the level
You cannot monitor your tank when away from home
You must walk to the tank area to use your phone to read the level
This is fine for some users, but if you want true remote monitoring (checking from work, on vacation, etc.), you need a cellular monitor instead.
Best For
Budget-conscious homeowners
Those who don't need remote monitoring
People who don't mind walking to their tank to check levels
Smaller propane tanks and occasional users
Pros and Cons
| Pros | Cons |
|---|---|
| ✅ Lowest price ($65-73) | ❌ Not true remote monitoring |
| ✅ No monthly fee | ❌ Must be within 30-100 ft of tank |
| ✅ Easy installation | ❌ Can't check level when away from home |
| ✅ Reliable |
#4: Otodata Nee-Vu - Alternative Cellular Option ⭐⭐⭐
Price: $150 – $200 Monthly Fee: $3 – $5 per month Technology: 4G LTE cellular Range: Unlimited Battery Life: 3-5 years
Key Features
✅ Cellular Connectivity - Remote monitoring via cellular network.
✅ Lower Monthly Fee - $3-5/month is cheaper than Mopeka Pro+ subscription.
✅ Real-Time Alerts - Text and email notifications.
✅ Web Portal - Online dashboard in addition to mobile app.
Why Consider It
The Otodata Nee-Vu is a solid cellular monitor with a lower monthly fee than the Mopeka Pro+ ($3-5/month vs $5-15/month).
However, the Generac 4G LTE is still better value because:
Generac has $0 monthly fee (Otodata is $3-5/month)
Generac 5-year total cost: $199-249
Otodata 5-year total cost: $150-200 + $180-300 = $330-500
Generac costs less over time and has no ongoing fees.
Best For
Homeowners who want cellular monitoring at lower monthly cost than Mopeka
Those who prefer web portal access in addition to app
#5: Smart Oil Gauge (WiFi) - Best for WiFi Homes ⭐⭐⭐
Price: $150 – $180 Monthly Fee: $0 Technology: WiFi Range: Within WiFi coverage area Battery Life: 1-2 years
Key Features
✅ WiFi Connectivity - Connects to your home WiFi network.
✅ No Monthly Fee - No subscription costs.
✅ Real-Time Monitoring - View level via smartphone app.
✅ Works with Oil and Propane - Designed for oil tanks but compatible with some propane setups.
The Limitation
WiFi monitors require your tank to be within WiFi range.
If your propane tank is:
Far from your house
Underground
In a location with weak WiFi signal
A WiFi monitor may not work reliably.
Additionally, if your home internet goes down, you lose monitoring capability. Cellular monitors (like Generac) are independent of your home network.
Best For
Homes with above-ground propane tanks close to the house
Strong WiFi signal at tank location
Homeowners who want no monthly fee and have reliable internet
Part 3: Comparison by Category
Best Cellular Monitor with No Monthly Fee
Winner: Generac 4G LTE Propane Monitor
Why: Only cellular monitor with $0 monthly fee. Total 5-year cost: $199-249.
Best Cellular Monitor Overall
Winner: Generac 4G LTE Propane Monitor
Why: No monthly fee + unlimited range + reliable cellular + easy installation.
Best Budget Monitor
Winner: Mopeka Pro Check
Why: Lowest price ($65-73) with no monthly fee. Good for short-range monitoring.
Best for Advanced App Features
Winner: Mopeka Pro+ Cellular
Why: Usage predictions, multi-tank support, detailed history and analytics.
Best for WiFi Homes
Winner: Smart Oil Gauge
Why: WiFi connectivity with no monthly fee, good for tanks near home with strong WiFi.
Part 4: 5-Year Total Cost Comparison
One of the most important factors in choosing a propane monitor is the total cost of ownership, not just the upfront price.
| Monitor | Upfront Cost | Monthly Fee | 5-Year Subscription Cost | Total 5-Year Cost |
|---|---|---|---|---|
| Generac 4G LTE | $199-249 | $0 | $0 | $199-249 ⭐ |
| Mopeka Pro+ Cellular | $199.99 | $5-15/month | $300-900 | $500-1,100 |
| Mopeka Pro Check | $65-73 | $0 | $0 | $65-73 |
| Otodata Nee-Vu | $150-200 | $3-5/month | $180-300 | $330-500 |
| Smart Oil Gauge (WiFi) | $150-180 | $0 | $0 | $150-180 |
The Generac 4G LTE is the most affordable cellular option over 5 years because it has no monthly fee.
Part 5: How to Choose the Right Propane Tank Monitor
Decision Guide: 5 Questions
Question 1: Do you need true remote monitoring?
Yes (want to check from anywhere) → Cellular monitor (Generac or Mopeka Pro+)
No (can walk to tank) → Bluetooth monitor (Mopeka Pro Check) is fine
Question 2: Do you want to avoid monthly fees?
Yes → Generac 4G LTE (cellular with no fee) or Bluetooth/WiFi monitors
No (don't mind subscription) → Mopeka Pro+ or Otodata
Question 3: Where is your propane tank located?
Above-ground, near home → WiFi or cellular
Above-ground, far from home → Cellular
Underground → Cellular with appropriate sensor
Question 4: What's your budget?
Budget ($50-80) → Mopeka Pro Check (Bluetooth)
Mid-range ($150-180) → WiFi monitor
Best value ($199-249) → Generac 4G LTE (no monthly fee)
Question 5: Do you need advanced app features?
Yes (predictions, multi-tank, analytics) → Mopeka Pro+ Cellular
No (just level and alerts) → Generac 4G LTE or Mopeka Pro Check
Recommendation Summary
| Your Situation | Best Monitor |
|---|---|
| Want best overall value | Generac 4G LTE ($199-249, $0 monthly) |
| Need remote monitoring, no monthly fee | Generac 4G LTE |
| On a tight budget | Mopeka Pro Check ($65-73) |
| Want advanced app features | Mopeka Pro+ Cellular ($199.99 + $5-15/month) |
| Tank near home, strong WiFi | Smart Oil Gauge ($150-180) |
Part 6: What to Look for in a Propane Tank Monitor
Essential Features
When choosing a propane tank monitor, look for these must-have features:
✅ Real-Time Level Display - Shows exact percentage or gallons
✅ Low-Level Alerts - Text, email, or push notifications when tank reaches threshold
✅ Easy Installation - DIY magnetic mount preferred
✅ Smartphone App - iOS and Android compatibility
✅ Long Battery Life - At least 3-5 years
Nice-to-Have Features
⭐ No Monthly Fee - Generac 4G LTE is the only cellular option with this
⭐ Unlimited Range - Cellular monitors offer this
⭐ Usage Tracking - Monitor consumption over time
⭐ Predictive Alerts - Estimates when you'll need a refill
⭐ Multi-Tank Support - Monitor multiple tanks in one app
⭐ Weatherproof Design - Works in all temperatures and conditions
Features to Avoid
❌ Proprietary Systems - Lock you into one propane supplier
❌ Short Battery Life - Frequent battery changes are annoying
❌ Complex Installation - Should be DIY-friendly
❌ Poor App Reviews - Unreliable apps cause frustration
❌ Hidden Fees - Read fine print for subscription requirements
Part 7: Frequently Asked Questions
Q1: What is the best propane tank monitor overall?
A: The Generac 4G LTE Propane Monitor is the best overall propane tank monitor. It offers cellular connectivity with no monthly fee, unlimited remote range, easy installation, and reliable monitoring for $199-249 total.
Q2: Is there a propane monitor with no monthly fee?
A: Yes, the Generac 4G LTE has no monthly fee. Cellular service is included in the purchase price, making it the only major cellular monitor with truly free ongoing service. Bluetooth monitors (like Mopeka Pro Check) also have no monthly fee but don't offer true remote monitoring.
Q3: Can I monitor my propane tank from my phone?
A: Yes, all the monitors reviewed in this guide have smartphone apps (iOS and Android) that display your tank level. Cellular monitors (Generac, Mopeka Pro+) allow you to check from anywhere. Bluetooth monitors require you to be near the tank.
Q4: How accurate are propane tank monitors?
A: Quality propane tank monitors are accurate to ±2-3%. Ultrasonic and magnetic float sensors provide reliable readings when properly installed.
Q5: Do I need WiFi for a propane tank monitor?
A: No, cellular monitors (Generac 4G LTE, Mopeka Pro+, Otodata) connect via cellular network and don't require WiFi. WiFi monitors require your tank to be within WiFi range.
Q6: Can I install a propane tank monitor myself?
A: Yes, most propane tank monitors are designed for DIY installation. Magnetic mounts make installation simple (5-15 minutes, no tools required for most models).
Q7: How long do propane monitor batteries last?
A: Most quality propane monitors have 3-5+ year battery life. The Generac 4G LTE and Mopeka monitors advertise 5+ years.
Q8: Will a propane monitor work with my underground tank?
A: Yes, but check compatibility before purchasing. Some monitors are specifically designed for underground tanks with dome-mounted sensors. The Generac 4G LTE and Mopeka Pro+ work with underground tanks.
Q9: What's the difference between Bluetooth and cellular monitors?
A:
| Feature | Bluetooth | Cellular |
|---|---|---|
| Range | 30-100 feet | Unlimited |
| Remote monitoring | No (must be near tank) | Yes (check from anywhere) |
| WiFi needed | No | No |
| Monthly fee | Usually $0 | $0-15/month |
For true remote monitoring, choose cellular.
Q10: How much does a propane tank monitor cost?
A: Propane tank monitors range from $50 to $250 upfront, with monthly fees of $0-15 depending on the model.
Budget Bluetooth: $50-80, $0/month
WiFi: $100-180, $0/month
Cellular (with subscription): $150-200, $3-15/month
Cellular (no subscription): $199-249, $0/month (Generac 4G LTE)
Part 8: Final Verdict - The Best Propane Tank Monitor
After comparing all the major propane tank monitors on the market, the verdict is clear:
🏆 Best Propane Tank Monitor: Generac 4G LTE
Why it wins:
✅ No Monthly Fee - The only cellular monitor with $0 ongoing cost
✅ Unlimited Remote Range - Check your tank from anywhere
✅ Reliable Cellular Connection - Independent of home WiFi
✅ Easy Installation - Magnetic mount, 5 minutes, DIY
✅ Long Battery Life - 5+ years
✅ Trusted Brand - Generac is a leader in home power equipment
✅ Best Total Cost - $199-249 for 5 years (vs $500-1,100 for competitors with subscriptions)
For most homeowners, the Generac 4G LTE is the best propane tank monitor you can buy.
Runner-Up: Mopeka Pro Check (Best Budget)
If you're on a tight budget and don't need remote monitoring, the Mopeka Pro Check at $65-73 is an excellent value. Just remember: you must be within 30-100 feet of your tank to check the level.
Runner-Up: Mopeka Pro+ Cellular (Best Advanced App)
If you want advanced app features like usage predictions, multi-tank support, and detailed analytics - and don't mind paying a monthly subscription - the Mopeka Pro+ Cellular is a strong choice.
Conclusion
Choosing the best propane tank monitor comes down to your priorities:
Best overall value: Generac 4G LTE ($199-249, no monthly fee)
Best budget: Mopeka Pro Check ($65-73, Bluetooth)
Best advanced app: Mopeka Pro+ Cellular ($199.99 + $5-15/month)
For most homeowners, the Generac 4G LTE Propane Monitor is the clear winner. It offers everything you need - remote monitoring, alerts, easy installation, reliability - with no ongoing costs.
Don't risk running out of propane. Invest in a quality tank monitor today and enjoy peace of mind knowing you'll never be caught off guard by an empty tank.
Last Updated: July 2026
Disclaimer: Product features, prices, and availability may change. Always verify current specifications before purchasing. This guide represents research and analysis at the time of writing.
