---
product_id: 634664237
title: "Kemo M158 Water Detector 9-12V/DC Integrated Relay. Control Sirens, Other Cut-Off relays, etc. with LED displays: Power Consumption: < 10 mA."
brand: "kemo"
price: "€ 4.93"
currency: EUR
in_stock: false
url: https://www.desertcart.pt/products/634664237-kemo-m158-water-detector-9-12v-dc-integrated-relay-control
store_origin: PT
region: Portugal
---

# Instant water detection Ultra-low power <10mA Integrated relay control Kemo M158 Water Detector 9-12V/DC Integrated Relay. Control Sirens, Other Cut-Off relays, etc. with LED displays: Power Consumption: < 10 mA.

**Brand:** kemo
**Price:** € 4.93
**Availability:** ❌ Out of Stock

## Summary

> 💧 Stay ahead of leaks—because prevention is the new power move!

## Quick Answers

- **What is this?** Kemo M158 Water Detector 9-12V/DC Integrated Relay. Control Sirens, Other Cut-Off relays, etc. with LED displays: Power Consumption: < 10 mA. by kemo
- **How much does it cost?** € 4.93 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/634664237-kemo-m158-water-detector-9-12v-dc-integrated-relay-control)

## Best For

- kemo enthusiasts

## Why This Product

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

## Key Features

- • **Energy Efficient:** Consumes less than 10mA, ensuring long-term, low-cost operation.
- • **Compact & Discreet:** Small 60x45x20mm size fits effortlessly into any environment.
- • **Dual Sensor Inputs:** Supports two sensor connections for versatile monitoring setups.
- • **Instant Water Alert:** Detects water presence immediately to protect your assets.
- • **Seamless Relay Integration:** Directly controls sirens and cut-off devices for automated response.

## Overview

The Kemo M158 Water Detector is a compact, energy-efficient device that instantly detects water presence via dual sensors and triggers an integrated relay to control sirens or cut-off systems. With ultra-low power consumption under 10mA and easy lead-through cable connections, it’s designed for seamless, reliable water monitoring in professional and industrial settings.

## Description

M158. When the 2 sensor connections of the module come into contact with water, the built-in relay switches on. This allows you to control sirens, other cut-off relays, etc. Operating voltage: 9 V/DC ideal, (max. 12 V/DC), (please only use a stabilised power supply). Power consumption: "Ready" <10 mA. When in contact with water, the relay switches on, <90 mA each at 9 V/DC.LED displays: 1 LED for the "Power" readiness indicator, 1 LED for the "On" display when the relay turns on.Connections: via lead-through cable.Approved cable length to the water sensor: max. 5 m with normal cable, max. 100 m with shielded cable when the shielding braid is connected to the negative pole of the supply voltage.Dimensions: moulded module housing approx. 60 x 45 x 20 mm (without mounting straps).

## Features

- When the module comes into contact with water, built-in relay switches on
- Equipped with 2 sensor connections
- Control of e.g. sirens and other cut-off relays
- Connections: via lead-through cable
- Dimensions: approx. 60 x 45 x 20 mm (without mounting straps)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Global Trade Identification Number | 04024028031583 |
| Manufacturer | Kemo |
| Item model number | M158 |
| Product Dimensions | 6 x 2 x 15.8 cm; 99.79 g |
| ASIN | B002SPT9VG |

## Product Details

- **Brand:** KEMO
- **Power Source:** Corded Electric
- **Product Dimensions:** 6L x 2W x 15.8H Centimeters
- **Voltage:** 12 Volts (DC)
- **Sensor Technology:** Contact Sensor

## Images

![Kemo M158 Water Detector 9-12V/DC Integrated Relay. Control Sirens, Other Cut-Off relays, etc. with LED displays: Power Consumption: < 10 mA. - Image 1](https://m.media-amazon.com/images/I/61dBSZyAgnL.jpg)
![Kemo M158 Water Detector 9-12V/DC Integrated Relay. Control Sirens, Other Cut-Off relays, etc. with LED displays: Power Consumption: < 10 mA. - Image 2](https://m.media-amazon.com/images/I/51+AEUgumHL.jpg)
![Kemo M158 Water Detector 9-12V/DC Integrated Relay. Control Sirens, Other Cut-Off relays, etc. with LED displays: Power Consumption: < 10 mA. - Image 3](https://m.media-amazon.com/images/I/616QmLYbcFL.jpg)
![Kemo M158 Water Detector 9-12V/DC Integrated Relay. Control Sirens, Other Cut-Off relays, etc. with LED displays: Power Consumption: < 10 mA. - Image 4](https://m.media-amazon.com/images/I/71Tp5rhN7rL.jpg)
![Kemo M158 Water Detector 9-12V/DC Integrated Relay. Control Sirens, Other Cut-Off relays, etc. with LED displays: Power Consumption: < 10 mA. - Image 5](https://m.media-amazon.com/images/I/61hxyH58+nL.jpg)

## Frequently Bought Together

- Kemo M158 Water Detector 9-12V/DC Integrated Relay. Control Sirens, Other Cut-Off relays, etc. with LED displays: Power Consumption: < 10 mA.
- MeanWell MEAN WELL HDR-15-12 Top-Hat Rail Power Supply, 15 W, 12 V, 1.25 A, 85-264VAC, Din-Rail Mount, Current Rating 1.25 Amps, HDR-15 Series

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.pt/products/634664237-kemo-m158-water-detector-9-12v-dc-integrated-relay-control](https://www.desertcart.pt/products/634664237-kemo-m158-water-detector-9-12v-dc-integrated-relay-control)

---

*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-14*