Could this be tapped into an existing monitor system to act as a secondary monitor panel?

If you use the same sensors it will give you the same reading. If a sensor goes out, both systems will give you a false reading. If you want a secondary monitor get 4 more sensors then you would have a good secondary system.

all tanks are showing whatever the fresh water tank is reading. Might replacing this monitor fix that problem?

All is reading if there is problem for frish cheack sensore

Im confused. Does this come with the sensors to put onto/ into the tank? Or do i have to buy those separate?

It does not come with the sensors. It has the standard hook-ups that snap onto the sensor ends. My tank came with the sensors in it.

what sensors work best with this ?

Kib manufacturers the sensor packs. The probes aren’t super important.

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RecPro Replacement Fresh Water or Holding Tank Level Sensor RV Monitor M21 Panel (Black)

Product ID: 310058327

Details

Brand
RecPro
Item dimensions L x W x H
13 x 73 x 118
Item weight
0.14 Kilograms
Material
High-Density
Style
Modern

⚡12V DC power compatibility

📏Compact 3.75-inch sensing range

🖤Sleek black or white finish

€ 70.63

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Description

🚐 Stay ahead on the road with smart tank monitoring!

PRECISION SENSING - High-density plastic sensor with 3.75-inch accuracy ensures no surprises on the road.
STYLISH DURABLE - Modern black or white design complements any RV interior while built to last.
INSTANT TANK INSIGHT - Clear LED indicators for fresh, gray, and black water levels keep you in control.
SEAMLESS 12 V INTEGRATION - Effortlessly connects to your RV’s 12V system for reliable monitoring.
MULTI FUNCTION CONTROL HUB - Manage electric and gas water heaters plus water pump from one sleek panel.

The RecPro RP-M21 is a compact, high-accuracy 12V DC water and battery level sensor designed for RVs. Featuring easy-to-read LED indicators and controls for electric and gas water heaters, it offers seamless integration and a sleek black or white finish to match your interior. Durable and precise, it ensures you never run low or get caught off guard while traveling.

Specifications

ASIN	B07XZJT5MJ
Best Sellers Rank	#20,627 in Kitchen ( See Top 100 in Kitchen ) #1 in Gas Heater Parts & Accessories
Brand Name	RecPro
Customer Reviews	4.4 4.4 out of 5 stars (281)
Item Dimensions	13 x 73 x 118 millimeters
Item Weight	0.14 Kilograms
Manufacturer	RecPro
Material Type	High-Density Plastic
Maximum Supply Voltage	12 Volts (DC)
Measurement Accuracy	High
Measuring Range	3.75 - 3.75 inches
Model	RP-M21
Mounting Type	Surface Mount
Number of Items	1
Number of Packs	1
Output Type	Analog
Part Number	RP-M21
Sensing Distance	3.75 Inches
Specific Uses For Product	Monitoring tanks in recreational vehicles, mobile living spaces, and outhouses
Style Name	Modern
UPC	193652017509
Unit Count	1 Count
Upper Temperature Rating	60 Degrees Celsius

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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€ 70.63

Duties & taxes included

In stock

Sold byAmazon ItalyDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Italy.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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