AP Products 024-1002 Tank Check Propane Level Indicator | 2 Pack: Complete Review and Buyer's Guide

Everything You Need to Know About the AP Products Tank Check Propane Level Indicator 2 Pack-Features, How It Works, Installation, Smartphone App, Accuracy, Compatibility, Pros and Cons, and How It Compares to Other RV Propane Monitoring Solutions

Introduction: The Smart Way to Monitor RV Propane

Running out of propane while camping is one of the most frustrating experiences for RV owners. No heat, no hot water, no cooking ability-and often at the most inconvenient times. The AP Products 024-1002 Tank Check Propane Level Indicator (2 Pack) offers a modern, smart solution for monitoring propane levels in your RV tanks using your smartphone.

Why the AP Products 024-1002 Tank Check Matters:

📱 Smartphone Monitoring - Check propane levels from your phone

📦 2-Pack Value - Monitor both tanks in dual-tank RV setups

⚡ Bluetooth Technology - Wireless connectivity up to 100 feet

📊 Precise Readings - Exact percentage and gallons remaining

🔔 Automatic Alerts - Notifications when propane is low

🚐 RV-Specific Design - Made for 20 lb, 30 lb, and 40 lb RV tanks

💰 No Monthly Fees - One-time purchase, no subscription required

This comprehensive guide covers:

What is the AP Products 024-1002 Tank Check

Features and specifications

How it works with smartphone app

Installation and setup process

Accuracy and reliability

Compatibility with different tanks

Pros and cons

Comparison with other monitoring solutions

Troubleshooting and support

Frequently asked questions

Part 1: What Is the AP Products 024-1002 Tank Check?

Product Overview

The AP Products 024-1002 Tank Check Propane Level Indicator is a smart, wireless propane tank monitoring system that uses ultrasonic sensor technology and Bluetooth connectivity to provide real-time propane level readings directly to your smartphone.

This 2-pack includes:

Two (2) Tank Check sensors - Monitor two propane tanks simultaneously

Perfect for dual-tank RV setups (most common in travel trailers and motorhomes)

Can also be used on two separate RVs or locations

Product Specifications:

Key Features

1. Ultrasonic Sensor Technology:

Measures propane level using ultrasonic waves

Non-invasive (attaches to tank exterior)

Safe and accurate

Works on steel tanks

2. Bluetooth Wireless Monitoring:

Connect to smartphone via Bluetooth

Range up to 100 feet

No wiring or installation required

Works through RV walls

3. Smartphone App (iOS and Android):

Free Mopeka Tank Check app

Real-time propane level display

Shows percentage, gallons, and estimated time remaining

Customizable alerts and notifications

Historical usage tracking

Multiple tank management

4. 2-Pack for Dual Tank Setups:

Monitor both propane tanks in your RV

Ideal for most RVs with dual-tank systems

See readings for both tanks in one app

Value pricing for 2 sensors

5. Magnetic Snap-On Installation:

Installs in seconds

No tools required

Attaches to tank bottom

Secure magnetic connection

6. Replaceable Battery:

Standard CR2032 battery

1-2 year battery life

Easy to replace

No charging required

7. Precise Measurements:

Shows exact percentage (not just color zones)

Displays gallons remaining

Estimates time until empty

Much more accurate than mechanical gauges

Part 2: How the Tank Check System Works

Operating Principle

The AP Products 024-1002 Tank Check uses ultrasonic sensor technology to measure propane levels. Here's how it works:

Step 1: Ultrasonic Measurement:

Sensor attaches to bottom of propane tank

Emits ultrasonic waves through tank wall

Waves travel through propane liquid

Measures distance to liquid surface

Calculates exact propane volume

Step 2: Data Transmission:

Sensor calculates propane level

Data transmitted via Bluetooth

Sends to smartphone app

Updates every few minutes

Step 3: Smartphone Display:

Open Mopeka Tank Check app

View real-time propane level

See percentage, gallons, and time remaining

Receive alerts when level is low

How to Use the System

Daily Monitoring:

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1. Open Mopeka Tank Check app on smartphone 2. App automatically connects to sensors 3. View propane levels for both tanks 4. See percentage, gallons, and time remaining 5. Plan refills based on actual data

Setting Up Alerts:

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1. In app, set custom alert threshold (e.g., 25%) 2. App sends notification when tank reaches threshold 3. Never run out of propane unexpectedly 4. Plan refills before tanks are empty

Tracking Usage:

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1. View historical usage in app 2. See how much propane you use per day 3. Plan for long trips 4. Understand your consumption patterns

Part 3: Installation and Setup

Step-by-Step Installation Guide

Time Required: 10-15 minutes (for both sensors)

Tools Needed: None

Step 1: Download the App:

Download Mopeka Tank Check app from:

Apple App Store (iOS)

Google Play Store (Android)

App is free to download

Create account (optional but recommended)

Step 2: Prepare Your Tanks:

Locate propane tanks

Ensure tanks are accessible

Clean bottom of tanks if dirty

Tanks can be full or partially filled

Step 3: Install Sensors:

Remove sensor from packaging

Remove battery protector tab

Sensor will activate automatically

Place sensor on bottom center of propane tank

Magnetic base will snap onto tank

Ensure sensor is secure and level

Step 4: Pair with Smartphone:

Open Mopeka Tank Check app

App will scan for sensors

Sensors should appear automatically

Tap to add each sensor

Name each sensor (e.g., "Tank 1 - Front", "Tank 2 - Rear")

Step 5: Configure Tank Settings:

For each sensor, select tank size:

20 lb (BBQ and small trailers)

30 lb (travel trailers)

40 lb (larger RVs)

App will calibrate based on tank size

Wait 2-5 minutes for initial reading

Step 6: Verify Readings:

Check that app shows propane level

If tank is known to be full, should show 80-100%

If tank is empty, should show 0-5%

Readings stabilize within 5-10 minutes

Step 7: Set Up Alerts:

Configure low-propane alert threshold

Recommended: 25-30% for alert

Enable push notifications

Test alert system

Installation Tips

For Best Performance:

✅ Install on clean, dry tank bottom

✅ Position sensor at center of tank bottom

✅ Ensure sensor is level and flat

✅ Keep sensor away from tank edges

✅ Wait for reading to stabilize before relying on it

What to Avoid:

❌ Installing on wet or dirty tank surface

❌ Placing sensor off-center

❌ Installing on curved or uneven surface

❌ Covering sensor with insulation or covers

Sensor Placement for Different Tank Orientations:

Horizontal Tanks (Most RVs):

Mount sensor on lowest point of tank

Tank bottom when in use position

Sensor will be slightly tilted-this is normal

Vertical Tanks (Some Travel Trailers):

Mount sensor on bottom center

Sensor will be flat

Most accurate orientation

Part 4: Accuracy and Reliability

How Accurate Is the Tank Check System?

Accuracy Rating: ±2-3%

What This Means:

If app shows 50%, actual level is 47-53%

Very accurate compared to mechanical gauges (±15-20%)

Reliable enough for planning refills

One of the most accurate consumer propane monitors available

Accuracy Comparison

Factors Affecting Accuracy

1. Sensor Position:

Center placement = best accuracy

Off-center = may reduce accuracy slightly

Level placement = optimal

2. Tank Condition:

Clean tank bottom = better readings

Rust or debris = may affect readings

Steel tanks work best

3. Temperature:

Extreme cold may slightly affect readings

Sensor designed for outdoor use

Operates in -4°F to 140°F range

4. Initial Calibration:

Wait 5-10 minutes for first reading

Readings improve after initial period

App learns tank characteristics

Real-World Reliability

User Feedback:

✅ Highly rated by RV owners

✅ Consistent performance

✅ Accurate enough for practical use

✅ Battery life as advertised (1-2 years)

⚠️ Bluetooth range may vary based on RV construction

⚠️ Initial setup may require patience

Part 5: Compatibility and Tank Sizing

Compatible Tanks

Tank Sizes:

✅ 20 lb tanks (standard BBQ cylinders)

✅ 30 lb tanks (common in travel trailers)

✅ 40 lb tanks (common in motorhomes)

✅ Larger portable tanks (up to 100 lb)

❌ Very large stationary tanks (use different sensors)

Tank Types:

✅ Steel tanks (magnetic attachment works)

⚠️ Aluminum tanks (magnet may not hold-use adhesive option)

❌ Composite/fiberglass tanks (will not work-no magnetic attachment)

❌ Underground tanks (use different monitoring systems)

Tank Orientation:

✅ Horizontal tanks (most RVs)

✅ Vertical tanks (some trailers)

Works in both orientations with proper placement

How to Determine Your Tank Size

Check the Tank Collar:

Look at metal collar on top of tank

Find "WC" (Water Capacity) stamp

Or look for "30 LB" or "40 LB" marking

Common RV Tank Sizes:

For Dual-Tank RVs:

Most travel trailers and motorhomes have two 30 lb tanks or two 40 lb tanks

The 024-1002 2-pack is perfect for these setups

Monitor both tanks with one app

Part 6: Pros and Cons

Advantages (Pros)

1. High Accuracy ⭐:

±2-3% accuracy

Much better than mechanical gauges

Reliable for planning refills

Precise measurement

2. Smartphone Convenience ⭐:

Check propane from your phone

No need to physically inspect tanks

Works through RV walls

Easy-to-use app

3. Automatic Alerts ⭐:

Never run out unexpectedly

Customizable thresholds

Push notifications

Peace of mind

4. 2-Pack Value:

Perfect for dual-tank RVs

Monitor both tanks

Better value than buying singles

Covers most common RV setup

5. No Monthly Fees:

One-time purchase

No subscription required

No hidden costs

Free app updates

6. Easy Installation:

No tools required

Magnetic snap-on

10-15 minutes setup

DIY-friendly

7. Battery Powered:

No wiring needed

Replaceable battery

1-2 year battery life

Easy battery replacement

8. Historical Data:

Track propane usage

Understand consumption

Plan for trips

Improve efficiency

9. Multiple Tank Management:

Manage both tanks in one app

See all tanks at once

Easy comparison

Integrated monitoring

10. RV Industry Trusted Brand:

AP Products established since 1992

Quality RV replacement parts

Reliable customer support

Used by many RV owners

Disadvantages (Cons)

1. Bluetooth Range Limitations:

100 feet maximum range

May not work from far inside RV

Metal RV construction can reduce range

Need to be relatively close to tanks

2. Requires Smartphone:

Must have iOS or Android phone

Not useful without smartphone

App required for monitoring

Tech-savvy users benefit most

3. Battery Replacement:

Battery lasts 1-2 years

Need to replace eventually

Small additional cost

CR2032 batteries are common and inexpensive

4. Initial Setup Learning Curve:

May take time to pair sensors

App has learning curve

Initial calibration needed

Requires patience first time

5. Only Works on Steel Tanks:

Magnetic attachment requires steel tank

Aluminum tanks may not hold magnet

Composite tanks incompatible

Check your tank material before purchase

6. Price Higher Than Mechanical Gauges:

$90-130 for 2-pack

More expensive than basic gauges ($25-45)

But much more accurate and feature-rich

Investment for convenience

Part 7: Comparison with Other Propane Monitoring Solutions

Smart Monitors Comparison

Tank Check 024-1002 vs. Mopeka Pro Check Single:

Tank Check vs. Generac 4G LTE Monitor:

Tank Check vs. Manchester Snap-On Mechanical Gauge:

When to Choose Tank Check 024-1002

Choose This Product If:

✅ You have a dual-tank RV setup

✅ You want smartphone monitoring

✅ Accuracy is important to you

✅ You want automatic alerts

✅ You're comfortable using apps

✅ You want to track propane usage

Consider Alternatives If:

❌ You have single tank (Mopeka Pro Check single may be better)

❌ You need remote monitoring from anywhere (Generac 4G LTE)

❌ You want no electronics (Manchester Snap-On)

❌ Budget is extremely tight (mechanical gauges)

❌ Your tanks are aluminum or composite

Part 8: Troubleshooting and Support

Common Issues and Solutions

Issue 1: Sensor Not Connecting to App

Possible Causes:

Bluetooth not enabled on phone

Sensor battery not installed correctly

Sensor too far from phone

App needs refresh

Solutions:

Enable Bluetooth on smartphone

Check battery installation

Move closer to sensor (within 100 feet)

Close and reopen app

Restart phone if needed

Issue 2: Inaccurate Reading

Possible Causes:

Sensor not centered on tank

Tank dirty or wet

Wrong tank size selected in app

Sensor needs recalibration

Solutions:

Reposition sensor at tank center

Clean tank bottom

Verify tank size in app settings

Wait 10 minutes for recalibration

Issue 3: Sensor Falls Off Tank

Possible Causes:

Aluminum tank (magnet won't hold)

Dirty tank surface

Vibration during travel

Sensor not properly seated

Solutions:

Verify tank is steel (magnetic)

Clean tank surface thoroughly

Press firmly to seat sensor

Consider adhesive option for aluminum tanks

Issue 4: Battery Life Shorter Than Expected

Possible Causes:

High temperature exposure

Frequent app checks

Defective battery

Old battery from purchase

Solutions:

Replace with fresh CR2032 battery

Reduce app check frequency

Contact manufacturer if defective

Store batteries properly

Issue 5: Alerts Not Working

Possible Causes:

Notifications disabled in phone settings

Alert threshold not set correctly

App running in background

Phone settings blocking notifications

Solutions:

Enable notifications in phone settings

Check alert threshold in app

Keep app running in background

Allow app to send notifications

Customer Support

AP Products Support:

Website: approducts.net

Phone: 517-278-8521

Contact for warranty issues

Product questions

Mopeka App Support:

In-app help section

Mopeka website support

FAQ and troubleshooting guides

Video tutorials

Part 9: Frequently Asked Questions

Q1: How does the AP Products 024-1002 Tank Check work?

A: The Tank Check uses ultrasonic sensor technology to measure propane levels. The sensor attaches magnetically to the bottom of your propane tank and emits ultrasonic waves that measure the propane level. Data is transmitted via Bluetooth to your smartphone (iOS or Android), where the free Mopeka Tank Check app displays exact percentage, gallons remaining, and estimated time until empty.

Q2: What's included in the 2-pack?

A: The 024-1002 includes two complete Tank Check sensors. Each sensor has:

Ultrasonic sensor unit

Magnetic mounting base

Pre-installed battery (CR2032)

Battery protector tab

The 2-pack is designed for:

Dual-tank RV setups (most common)

Monitoring two separate tanks

Using on two different RVs

Q3: How accurate is the Tank Check system?

A: Accuracy is ±2-3%, which is excellent for a consumer propane monitor. This means if the app shows 50% remaining, the actual level is between 47-53%. This is much more accurate than mechanical gauges (±15-20%) and comparable to weighing the tank.

Q4: Will the Tank Check work with my RV propane tanks?

A: The Tank Check works with most RV propane tanks:

✅ 20 lb tanks (BBQ and small trailers)

✅ 30 lb tanks (travel trailers, 5th wheels)

✅ 40 lb tanks (motorhomes, larger RVs)

✅ Steel tanks (magnetic attachment works)

Will NOT work with:

❌ Composite/fiberglass tanks

❌ Aluminum tanks (magnet may not hold)

❌ Underground tanks

Check your tank material before purchasing.

Q5: Do I need a smartphone to use this?

A: Yes, a smartphone is required. The Tank Check system works with:

iOS devices (iPhone, iPad)

Android devices

The free Mopeka Tank Check app is essential for:

Viewing propane levels

Receiving alerts

Tracking usage

Managing multiple tanks

Without a smartphone, you cannot use this product.

Q6: What is the Bluetooth range?

A: Up to 100 feet (30 meters) in ideal conditions. However:

Metal RV walls may reduce range

Range may be 50-75 feet in some RVs

Must be within range for app to update

Cannot monitor from remote location (like Generac 4G LTE)

For most RV use, range is sufficient.

Q7: How long does the battery last?

A: 1-2 years typical use with the included CR2032 battery. Battery life depends on:

How often you check the app

Temperature exposure

Sensor activity

Replacing the battery:

CR2032 batteries are common and inexpensive (~$2-5)

Easy to replace yourself

No tools required

Q8: Can I monitor both tanks from one app?

A: Yes, absolutely! The Mopeka Tank Check app can manage multiple sensors:

View both tanks on one screen

See readings for each tank

Set individual alerts

Track usage separately or combined

The 2-pack is specifically designed for this.

Q9: Is there a monthly subscription fee?

A: No monthly fees! The Tank Check system is:

One-time purchase ($90-130 for 2-pack)

Free app download

No subscription required

No hidden costs

Free app updates

Unlike some remote monitoring systems, you own it outright.

Q10: How does this compare to mechanical gauges?

A: Tank Check is far superior to mechanical gauges:

Mechanical gauges are cheaper but much less accurate and feature-limited.

Conclusion: The Smart Choice for RV Propane Monitoring

The AP Products 024-1002 Tank Check Propane Level Indicator 2-Pack offers the best combination of accuracy, convenience, and value for RV owners with dual-tank setups.

Key Takeaways:

High accuracy (±2-3%) - Reliable readings for planning refills

Smartphone convenience - Check levels from your phone within 100 feet

2-pack value - Perfect for dual-tank RVs, better per-sensor price

Automatic alerts - Never run out of propane unexpectedly

No monthly fees - One-time purchase, free app

Easy installation - Magnetic snap-on, no tools, 10-15 minutes

Works on most RV tanks - 20 lb, 30 lb, 40 lb steel tanks

Battery-powered - 1-2 year battery life, easy replacement

Track usage history - Understand your propane consumption

Trusted brand - AP Products, established RV parts supplier

Who should buy this: RV owners with dual-tank setups who want accurate, convenient propane monitoring with smartphone alerts. Ideal for tech-savvy RVers who want to eliminate propane anxiety.

Who should consider alternatives: Those with single tanks (Mopeka Pro Check single), those needing remote monitoring from anywhere (Generac 4G LTE), or those preferring no electronics (Manchester Snap-On).

The AP Products 024-1002 Tank Check 2-Pack is the smart, modern solution for RV propane monitoring.

Last Updated: July 2026

Complete Review: AP Products 024-1002 Tank Check Propane Level Indicator | 2 Pack

Disclaimer: Product specifications, pricing, and availability may change. Always verify current information before purchasing. This review is for informational purposes based on product features and general user experiences.