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 RV Tank Sensor Monitor Panel M21 Panel Only (Black)

Product ID: 187076133

Details

Brand
RecPro
Item Weight
0.14 kg
Item dimensions L x W x H
0.5 x 2.88 x
Material
High-Density
Style
Modern

💧Fresh, gray & black tank levels

🔋12V battery monitoring

🔘Simple push-button readout

₩79826

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Description

🚐 Stay ahead on the road with smart tank monitoring—never run dry or powerless again!

DURABLE MODERN DESIGN - Crafted from high-density plastic with a sleek black finish to complement any RV interior.
INTUITIVE LED DISPLAY - Quick-glance lights keep you informed without the guesswork—no more surprises on the road.
SEAMLESS 12 V INTEGRATION - Effortlessly syncs with your RV’s power system for real-time battery and tank status.
DIY FRIENDLY INSTALLATION - Surface mount design and clear indicators make setup a breeze—get back on the road faster.
BUILT IN WATER PUMP CONTROL - Control your water pump directly from the panel, streamlining your RV management.

The RecPro RV Tank Sensor Monitor Panel M21 (Black) is a compact, high-accuracy digital monitor designed for 12V RV systems. It tracks fresh, gray, and black water tank levels plus battery voltage, featuring a simple push-button LED display and built-in water pump control. Made in the USA with durable high-density plastic, it offers easy surface mounting and a modern aesthetic to seamlessly blend with your RV’s interior.

Specifications

ASIN	B07XZJT5MJ
Best Sellers Rank	#85,837 in Automotive ( See Top 100 in Automotive ) #70 in RV Water Pumps & Accessories
Brand Name	RecPro
Customer Reviews	4.4 4.4 out of 5 stars (296)
Item Dimensions	0.5 x 2.88 x 4.63 inches
Item Highlight	12V Battery Level, Built-in Water Pump Control Switch, Simple Push Button Readout, Made in USA
Item Weight	0.14 kg
Manufacturer	RecPro
Material Type	High-Density Plastic
Maximum Supply Voltage	12 volts_of_direct_current
Measurement Accuracy	High
Measuring Range	6.00 - 12.85 volts_of_direct_current
Model	RP-M21
Mounting Type	Surface Mount
Number of Items	1
Number of Packs	1
Output Type	Digital
Part Number	RP-M21
Style Name	Modern
UPC	193652017509
Unit Count	1 Count
Upper Temperature Rating	60 °C

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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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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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₩79826

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered 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 South Korea.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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