--- 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: "Β£3.02" currency: GBP in_stock: false url: https://www.desertcart.co.uk/products/634664237-kemo-m158-water-detector-9-12v-dc-integrated-relay-control store_origin: GB region: United Kingdom --- # 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:** Β£3.02 **Availability:** ❌ Out of Stock ## Summary > πŸ’§ Stay ahead of leaksβ€”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?** Β£3.02 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/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 - β€’ **Energy Efficient:** Consumes less than 10mA, ensuring long-term, low-cost operation. - β€’ **Compact & Discreet:** Small 60x45x20mm size fits effortlessly into any environment. - β€’ **Dual Sensor Inputs:** Supports two sensor connections for versatile monitoring setups. - β€’ **Instant Water Alert:** Detects water presence immediately to protect your assets. - β€’ **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? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/634664237-kemo-m158-water-detector-9-12v-dc-integrated-relay-control](https://www.desertcart.co.uk/products/634664237-kemo-m158-water-detector-9-12v-dc-integrated-relay-control) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-28*