---
product_id: 310058327
title: "RecPro Replacement Fresh Water or Holding Tank Level Sensor RV Monitor M21 Panel (Black)"
brand: "recpro"
price: "634 kr"
currency: DKK
in_stock: true
url: https://www.desertcart.dk/products/310058327-recpro-replacement-fresh-water-or-holding-tank-level-sensor-rv
store_origin: DK
region: Denmark
---

# 12V DC power integration Multi-tank level monitoring Electric & gas heater controls RecPro Replacement Fresh Water or Holding Tank Level Sensor RV Monitor M21 Panel (Black)

**Brand:** recpro
**Price:** 634 kr
**Availability:** ✅ In Stock

## Summary

> 💡 Stay ahead on the road with smart tank and power monitoring!

## Quick Answers

- **What is this?** RecPro Replacement Fresh Water or Holding Tank Level Sensor RV Monitor M21 Panel (Black) by recpro
- **How much does it cost?** 634 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/310058327-recpro-replacement-fresh-water-or-holding-tank-level-sensor-rv)

## Best For

- recpro enthusiasts

## Why This Product

- Trusted recpro brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Multi-Tank Mastery:** Keep fresh, gray, and black water tanks in check with a glance.
- • **Dual Heater Control:** Manage both electric and gas water heaters directly from the panel.
- • **Battery Voltage Insight:** Stay powered up by tracking your battery status alongside tank levels.
- • **Intuitive Light Display:** Quick, easy-to-read LED indicators eliminate guesswork on tank fullness.
- • **Seamless 12V System Sync:** Effortlessly integrates with your RV’s power for real-time monitoring.

## Overview

The RecPro RP-M21 is a compact, durable RV monitor panel designed to track fresh, gray, and black water tank levels plus battery voltage. Featuring a clear LED light display and controls for electric and gas water heaters, it integrates seamlessly with 12V systems and comes in black or white to match your RV interior.

## Description

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

## Features

- This durable monitor is available in black or white to match with your interior
- The easy to understand display uses lights to indicate levels
- Once tied into your 12V system it will keep an eye on your fresh, gray, and black tanks as well as your battery voltage
- Controls for electric and gas water heaters

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | RecPro |
| Brand | RecPro |
| Product Dimensions | 1.27 x 7.32 x 11.76 cm; 141 g |
| Item model number | RP-M21 |
| Manufacturer Part Number | RP-M21 |
| Item Weight | 141 g |

## Product Details

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

## Images

![RecPro Replacement Fresh Water or Holding Tank Level Sensor RV Monitor M21 Panel (Black) - Image 1](https://m.media-amazon.com/images/I/81lmHiD2aTL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Could this be tapped into an existing monitor system to act as a secondary monitor panel?**
A: 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.

**Q: all tanks are showing whatever the fresh water tank is reading. Might replacing this monitor fix that problem?**
A: All is reading if there is problem for frish cheack sensore

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

**Q: what sensors work best with this ?**
A: Kib manufacturers the sensor packs. The probes aren’t super important.

## Frequently Bought Together

- RecPro RV Tank Monitor Panel M21 | KIB Replacement | Panel Only | Fresh Water or Holding Tank Level Sensor (Black)
- RecPro RV Water Screw-in Tank Probe Sensors | Fresh, Gray or Black Water Tank | Made in USA | 6 Pack
- RecPro Replacement Tank Wire Harness | Fresh Water | Gray Water | Waste Water Holding Tank | KIB Sensor Probe Harness (4 Harnesses)

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**Shop now:** [https://www.desertcart.dk/products/310058327-recpro-replacement-fresh-water-or-holding-tank-level-sensor-rv](https://www.desertcart.dk/products/310058327-recpro-replacement-fresh-water-or-holding-tank-level-sensor-rv)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-01-26*