Contents
- Editor’s Choice
- Top 10 best water protection systems of 2022 according to KP
- How to choose water leakage sensors
The principle of operation of water leakage sensors is simple. The water in the pipes is not distilled and conducts electricity quite well. The sensor is two non-contiguous electrodes; if the space between them is filled with water, the circuit will close and the device will signal a leak.
Sensors are wired and wireless, powered by batteries or from mains sources. Several sensors can be combined into flood protection systems using a special controller, as well as report an accident to a smartphone via SMS or via the Internet. And, finally, to integrate into the “smart home” systems of different manufacturers.
Editor’s Choice
Ajax LeaksProtect white
The device does not require installation and can be placed anywhere, even hard-to-reach. Works 24/7. You can install only the sensor itself – in this case, during a flood, it will notify you so that you yourself block the water. If the device is built into the water supply control system, it will send a signal to the controller to shut off the water at the flood site. The system can have up to 200 sensors – in the application you can set a name and location for each.
The model is suitable for both private use and commercial facilities. By the way, the commercial use of Ajax LeaksProtect sensors is also convenient because the application shows which of the 200 sensors worked. Thus, it immediately becomes clear which room needs to be checked and a plumber should be sent there.
Technical specifications
| Height | 14 mm |
| Depth | 56 mm |
| Width | 56 mm |
| Sound indication | Yes |
| Wireless connection | Yes |
Advantages and disadvantages
Top 10 best water protection systems of 2022 according to KP
1. Perenio PECLS01
The wireless sensor does not require special installation, it is simply placed on the floor in the bathroom or boiler room. The case has a degree of protection IP67 and maintains tightness even when the room is completely flooded. An audible signal is given during autonomous operation as soon as the water level becomes more than 1,5 mm. If the sensor is connected to the Perenio smart home control system, then a push notification is sent to the smartphone at the same time. It is possible to turn on the locking mechanism of the water line.
Technical specifications
| Height | 21 mm |
| Diameter | 60 mm |
| Working voltage | In 3 |
| Current consumption | 0,2 mA |
| Other | works in the “smart home” system Perenio |
Advantages and disadvantages
2. Neptune SW 005
The sensor is installed on the floor in the bathroom, in the kitchen, under the washing machine or the boiler of the heating system. In case of leakage, a signal is transmitted to the controller. It does not operate on batteries, but is constantly connected to the mains power supply. The type of output signal is an open collector, that is, a transistor whose collector is not connected to anything inside the sensor and is simply brought out. Widely used in automated systems to control relays, valves, signaling devices. The power supply is sealed and safe.
Technical specifications
| Height | 14 mm |
| Diameter | 52 mm |
| Working voltage | In 12 |
| Connection type | wired |
| Maximum output current | 50 mA |
| Temperature range | from +5 to +40 °C |
| Degree of protection | IP67 |
| Weight | 60 g |
| Length of cable | 2 m |
Advantages and disadvantages
3. Rubetek RS-3220
The sensor is placed on the floor in a place where water is likely to accumulate. Sends push and sms notifications to your smartphone in the event of an accident. Rubetek, included in the smart home system, initiates the activation of the mechanism for shutting off the water main. Can be set to automatically turn off the water (when installing a stopcock).
Technical specifications
| Height | 8 mm |
| Diameter | 45 mm |
| Working voltage | In 12 |
| Other | works in the “smart home” system with the Rubetek ecosystem |
Advantages and disadvantages
4. HYPER IoT W1
The sensor is simply placed on the floor in the bathroom or kitchen and secured with adhesive tape. Reacts to the appearance of water and sends a message to a smartphone or smart home controller. Wireless connection, the maximum distance from the receiver is 45 m. Message transmission via Wi-Fi. The HIPER IoT app must be installed on a smartphone running Android and iOS.
Technical specifications
| Height | 24 mm |
| Diameter | 67 mm |
| Working voltage | In 3 |
| Other | works autonomously or in the “smart home” system |
Advantages and disadvantages
5. Aqara Water Leak Sensor
The sensor does not require installation, it is simply placed on the floor and remotely connected to the Aqara Hub smart home center. When water gets on the contacts, it gives a light and sound signal. If a control device is connected to the same hub, the water supply valve will automatically close. The same effect will be when the sensor is included in the Xiaomi Mi Home smart home system using the ZigBee protocol. To receive messages on a smartphone, the Aqara application for iOS or Android must be installed there.
Technical specifications
| Height | 15 mm |
| Diameter | 50 mm |
| Working voltage | In 3 |
| Working temperature | from -10 to +55 ° C |
| Maximum humidity | 100% |
Advantages and disadvantages
6. Water S-10000-0A
A wired sensor placed on the floor detects a leak and sends a signal about it to the controller. The maximum cable length is 100 m. An alarm also causes a cable break. It is possible to connect via a controller to the Yandex or Ujin smart home ecosystem via a gateway. The indication is optical, there is no sound signal.
Technical specifications
| Height | 16 mm |
| dimensions | 48×48 mm |
| Supply voltage | In 5 |
| Current consumption | 1 mA |
| Current consumption in emergency mode | up to 8 mA |
Advantages and disadvantages
7. Neptune Aquaсontrol SW007
The sensor is flush-mounted into floor tiles in a bathroom or other leak-prone area. Touching the plates is safe. Each sensor is equipped with a special false alarm protection board. Controller distance is five times greater than the previous model when using Base, Neptun ProW, Neptun ProW+ controllers. A three-wire cable is used for connection.
Technical specifications
| Height | 12,5 mm |
| Diameter | 54 mm |
| Working voltage | In 12 |
| Connection type | wired |
| Maximum output current | 50 mA |
| Temperature range | from +5 to +40 °C |
| Degree of protection | IP67 |
| Weight | 60 g |
| Length of cable | 2 m |
Advantages and disadvantages
8. “Guardian” Wi-Fi F-01
An autonomous leak sensor is installed on the wall in a place where water is likely to accumulate. The sensor, powered by a Krona battery, is equipped with a Wi-Fi connection module. To receive accident or battery level messages on an Android or iOS smartphone, you need to install the Tuya Smartlife app. It is possible to connect to different smart home ecosystems and control the water supply tap through them.
Technical specifications
| dimensions | 89h55h26 mm |
| Supply voltage | In 9 |
| Working temperature | from -10 to +60 ° C |
| Standby current | up to 10 mA |
| Other | sound alarm and SMS transmission |
Advantages and disadvantages
9. REXANT GS-243
The sensor monitors the appearance of water on the floor and transmits an alarm message to the controller of the GSM alarm system GS-115 REXANT. The contact pad is fixed in the place of possible leakage and connected by a wire up to 1 m long to the transmission module. Upon an alarm signal, the security console is notified and an SMS message is sent to the mobile phone of the owner of the premises.
Technical specifications
| dimensions | 80h37h15,5 mm |
| Supply voltage | 12 V alkaline battery type 23A |
| The weight | 30 grams |
| Operating frequency | 315MHz/433MHz |
| Maximum distance from the controller | 100 m |
Advantages and disadvantages
10. “Dadjet” KIT-MT8082
A simple and cheap sensor that does not require complex installation. It is simply placed on the floor in the place of a possible leak. Loudly signals when contacts are moistened. There are no connections to a smartphone or smart home. Wireless connection allows you to easily change the location of the sensor.
Technical specifications
| Height | 40 mm |
| Supply voltage | In 9 |
| Alarm indication | sound |
Advantages and disadvantages
How to choose water leakage sensors
There are quite a lot of different models on the market, to find the right one for solving a specific problem. In this case, you must follow a few simple rules.
Choose the right device type
The sensors are either wired or wireless. The latter are the most convenient in terms of installation – installation is not needed, just place the device in the place of a potential leak. This is a great option for already renovated premises where it is difficult to carry out electrical work. Wired sensors are good because they do not require battery replacement.
Decide on an appointment
What is meant by “leak protection”? There are sensors that just signaling flooding, and a person has to turn off the water. The signal can be a sound or, if the device is connected to the application, a message is sent to the owner’s smartphone.
Complete leak protection systems are capable of shutting off stopcock. But they cannot work independently – you need to mount the controller and shut-off valves on the pipes. This option will cost more, and it is better to do it at the stage of repair before finishing. But even in your absence, the flood will be prevented.
Learn about the manufacturer’s warranty
You buy a home security system for many years, and in the first year of use you may not even notice how it works. Therefore, it is better not to consider sensors with a 1-year warranty. Proven manufacturers who have earned trust in the market give 4 to 6 years of warranty on their products.
Popular questions and answers
Until recently, water leakage sensors have not been popular among homeowners and builders. But technological progress has made it possible to connect them to a smartphone and smart home systems, so interest in such gadgets has grown dramatically.