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Mini Sensor Probes for RV Water Tanks - Elkhart Plastics 500674M (Pack of 6)
Never run out of fresh water or overflow your gray tank again. These Elkhart Plastics mini sensor probes deliver accurate, real-time tank level monitoring for your RV's fresh water and gray water tanks. Designed for reliability and easy installation, this 6-pack gives you everything you need to monitor multiple tanks or have spares on hand.
Why Choose Elkhart 500674M Mini Probes?
✅ Accurate Tank Level Monitoring – Eliminate surprises while traveling with precise readings
✅ Compact Design – 3/8" diameter x 1" long fits standard RV tank sensor ports
✅ Easy DIY Installation – Simple 3/8" hole saw cut and smooth edges for best seal
✅ Versatile Application – Works with fresh water and gray water tanks
✅ Value Pack – 6 probes per pack for multiple tanks or replacement spares
✅ OEM Quality – Made by Elkhart Plastics/Ameri-Kart, trusted RV parts manufacturer
Technical Specifications
- Part Number: 500674M
- SKU: 226B
- Probe Diameter: 3/8 inch
- Probe Length: 1 inch
- Hole Saw Size Required: 3/8 inch
- Quantity: Pack of 6 probes
- Compatible Tanks: Fresh water and gray water tanks
- Material: Durable sensor-grade materials
Installation Guide
Step 1: Measure twice – mark the location for your sensor probe on the tank wall
Step 2: Use a 3/8" hole saw to cut the opening in your RV tank
Step 3: Smooth out any rough edges around the hole for optimal seal
Step 4: Insert the mini probe and secure according to your tank monitor system instructions
Step 5: Test the sensor to ensure accurate readings
Pro Tip: Install probes at 1/4, 1/2, 3/4, and full levels for comprehensive tank monitoring.
Compatible RV Tank Monitoring Systems
These mini probes work with most standard RV tank level monitoring systems including KIB Tank Level Monitors and other resistance-based sensor panels. Perfect for upgrading your existing system or building a complete tank monitoring solution.
Complete Your RV Tank Setup
Looking for a complete tank fittings solution? Check out our Universal Fresh Water Tank Fittings Kit with Sensors or our Universal Holding Tank Fittings Kit for a comprehensive installation.
For black water tank monitoring, consider the Horst Miracle Probe which is specifically engineered to resist waste buildup and provide accurate readings in challenging conditions.
Fresh Water vs. Gray Water vs. Black Water Probes - What's the Difference?
| Model | Tank Type | Size | Quantity | Best For | View Details |
|---|---|---|---|---|---|
| 500674M (Current) | Fresh & Gray Water | 3/8" x 1" | Pack of 6 | Multiple tanks or bulk replacement | You're viewing this |
| 500674 | Black Water (Horst Miracle) | 3/8" standard | Single probe | Black tank - prevents false readings from buildup | View Product |
💡 Helpful Tip: Fresh and gray water tanks can use standard mini probes like the 500674M, but black water tanks require specialized probes like the Horst Miracle Probe to prevent waste buildup from causing false readings.
Frequently Asked Questions
Q: How many probes do I need for one RV water tank?
A: Most RV tanks use 3-4 probes to show empty, 1/3, 2/3, and full levels. This 6-pack gives you enough for one complete tank plus spares, or you can monitor multiple tanks.
Q: Can I use these probes in my black water holding tank?
A: No, these mini probes are designed for fresh water and gray water tanks only. For black water tanks, we recommend the Horst Miracle Probe (500674) which is specifically engineered to resist waste buildup.
Q: What size hole do I need to drill in my RV tank?
A: You'll need a 3/8 inch hole saw to create the opening for these probes. Always measure twice and smooth any rough edges for the best seal.
Q: Are these probes compatible with my existing tank monitor panel?
A: These probes work with most standard resistance-based RV tank monitoring systems. They're compatible with popular systems like KIB monitors and similar panels.
Q: Can I install these myself or do I need a professional?
A: This is a straightforward DIY installation for most RV owners. You'll need a 3/8" hole saw, basic hand tools, and the ability to access your tank. Follow the installation tips above for best results.
Q: What's the difference between 500674M and 500674?
A: The 500674M (this product) is a pack of 6 mini probes for fresh and gray water tanks. The 500674 is the Horst Miracle Probe sold individually and designed specifically for black water tanks with anti-fouling technology.
Q: Do I need to buy additional hardware or fittings?
A: These probes are designed to work with your existing tank monitor wiring system. If you're building a complete new tank, consider our Universal Fresh Water Tank Fittings Kit which includes all necessary fittings and sensors.
Why Buy from Elkhart RV Parts?
✓ Authorized Elkhart Plastics Dealer – Guaranteed authentic OEM parts
✓ Expert RV Parts Knowledge – Our AI Live Chat can help with product selection and installation questions
✓ Fast Shipping – Get your parts quickly so you can get back on the road
✓ Quality Guarantee – OEM-grade components built to last
Need help choosing the right tank sensors or have installation questions? Use our AI Live Chat for instant assistance with product compatibility, installation guidance, and technical specifications.
Order Your Elkhart 500674M Mini Probes Today – Never Guess Your Tank Levels Again!
| Pack quantity | 6 |
|---|---|
| Length (inches) | 1 |
| Diameter (inches) | 0.375 |
| Hole saw cut diameter (inches) | 0.375 |
- What size are the mini probes for water tanks? The mini probes are 3/8 inch in diameter and 1 inch long.
- Can these probes be used for both fresh water and gray water tanks? Yes, these probes can be used for both fresh water and gray water tanks.
- How many probes come in a pack? The probes are sold in packs of 6.
- What size hole do i need to cut to install these probes? You need to cut a 3/8 inch hole to install these probes.
- Any installation tips for the mini probes? Measure twice before cutting the hole, and after cutting, smooth out any rough edges to ensure the best seal.
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