
Best selling Water cooling monitoring
Here's a ranking of the best products in this category. To give you a quick overview, we've also added some key information about the products.
1. Aqua Computer Flow sensor high flow NEXT, OLED, 2x G1/4, RGBpx
Precise inline flow sensor with a magnetic measuring system and temperature sensor. It measures coolant quality and features RGB illumination and RGBpx output. The sensor has two G1/4 inch threads and is suitable for systems with approximately 35 l/h to 1,000 l/h flow.

2. Sonoff SNZB-05P ZigBee water leakage sensor
ZigBee SONOFF SNZB-05P Smart Flood/Water Leak Sensor (including battery).
The SONOFF SNZB-05P sensor is a state-of-the-art solution that enables early leak detection and protects your home from flooding. Thanks to the use of gold-plated, corrosion-resistant probes and the IP67 certified design, the device is extremely durable and reliable even in harsh conditions. Combined with the ZigBee 3.0 protocol and a 5-year CR2477 battery life, the sensor ensures safety and long-lasting performance without the need for frequent battery changes.
Technical Specifications
Power Supply: CR2477 3V battery (included)
Battery Life: Up to 5 years
Detection Range: Water level from 0.5 mm
Operating Temperature: -10°C to 60°C
Operating Humidity: 0 ~ 100% relative humidity
Housing Material: PC + ABS
Product Dimensions: 48 x 48 x 21.6 mm
Net Weight: 45 g
Communication Range: 130 m (in open areas).

3. EKWB EK-Quantum Flow Indicator D-RGB Flow indicator
The EK-Quantum Flow Indicator D-RGB is a premium flow indicator featuring addressable RGB implementation from the Quantum series. It visually represents the coolant flow rate, which can often be difficult to discern with the naked eye. This can be very useful for quickly identifying whether your loop is functioning normally or if there is an issue with the pump or flow in another area. Additionally, it is very elegant, making it a nice aesthetic detail for your loop.
It has three G1/4" connections, all with internal threads. It can be mounted with two fittings in the middle of the tubing or attached using an extension with double external threads to any G1/4" connection of a radiator, pump, or even a block. Each of the threads can be used as an inlet or outlet. The flow indicator features a unique impeller body with a closed center and angled impeller blades that prevent air from getting trapped in the indicator.
This product is compatible with common RGB sync technologies from all major motherboard manufacturers. The arrow marking on the 3-pin addressable LED connector must align with the +5V marking on the D-RGB (A-RGB) header. An anodized aluminum cover hides the LED hotspots and ensures even illumination across the entire device. There are a total of 2 LEDs housed within.
This flow indicator is made from CNC-machined cast acrylic material with an anodized aluminum cover that has the same finish as the EK-Quantum Vector GPU backplates.

4. RS PRO Air flow sensor 10 l/min 100 l/min Type For air
The RS PRO air flow sensor is a highly advanced device for monitoring air flow rates in various applications. With a monitoring range of 10 l/min to 100 l/min, this sensor provides precise control over air flow, making it ideal for use in water cooling and other technical systems. The sensor is designed for use with hoses and can operate under pressure conditions of up to 1 MPa. Made from PMMA, a robust material, the sensor ensures high resistance and durability. Additionally, it is suitable for operating temperatures of up to 80°C, making it versatile for various applications. The sensor is an essential tool for professionals who require reliable monitoring of air flow.
- Precise monitoring of air flow rates between 10 l/min and 100 l/min
- Maximum operating pressure of 1 MPa for versatile applications
- Made from robust PMMA for high resistance
- Suitable for operating temperatures up to 80°C.

5. Aqua Computer Aquacomputer connection cable alarm output VISION/OCTO to mainboard power button
This cable from Aquacomputer is used for emergency shutdown of the computer in the event of an alarm. It is compatible with the Vision series and is connected to the power button input of the mainboard without affecting the power button. Scope of delivery: 1x cable (length 70cm) Compatible with the following devices: cuplex kryos NEXT with VISION VISION connection terminal for kryographics (23664, 23665, 23666, 23667) VISION Touch (53232, 53235) OCTO (53286) Note: Before connecting the cable, please make sure that the alarm output/tacho signal output of the corresponding device is configured correctly! Quick guide: Settings for VISION devices (in aquasuite software): Tab "Alarm settings": Selection item "Power button (53216)" must be activated. Only then connect the alarm cable to the mainboard. Then test the correct function by provoking an alarm. If the PC does not switch off, turn the plug on the mainboard 180 degrees and repeat the test. During the emergency shutdown, data may be lost because the operating system and open programmes will not be shut down properly! be terminated properly!

Aqua Computer Aquacomputer connection cable alarm output VISION/OCTO to mainboard power button
6. Bitspower Flow sensor G1/4 inch
This is a flow sensor with matte black connections featuring G1/4-inch internal threads. The coolant flows through the flow indicator, driving a black impeller. The rotational speed of the impeller serves as a flow indicator and is output via a 3-pin cable at the back.
Designed for use with an aquaero 4, 5, or 6 from aqua computer, it allows for the reading of the rotational speed, similar to a connected fan, enabling verification of whether the pressure in the water circuit is as desired. To increase the flow rate for better reading, adapters can be placed at the inlet or outlet, reducing the inner diameter to 8 mm or even 5 mm.
Technical details:
- Material: Brass, matte black
- Connections: Internal threads: 2x G1/4 inch, 3-pin rotational speed signal cable: 600 mm length
- Flow adapters: 5 mm and 8 mm (ID).

7. LogiLink SC0122
The LogiLink water detector offers maximum protection. The integrated 3V battery ensures an impressive lifespan of 10 years. A low battery status is signaled in a timely manner. Thanks to its IP65 certification, the device is protected against water jets, and the alarm is loud enough at 85 dB to warn you even in noisy environments.

8. Aqua Computer Flow sensor cable 3 pole
Three-core cable for connecting the flow sensor to the aquaero. Length approximately 30 cm, with connectors on both sides (special connector on sensor). If needed, the cable can be extended with standard 3-pin fan extension cables.

9. Alphacool Icicle temperature sensor
Can be used in all exposed G1/4" threaded openings on the radiator, expansion tank, graphic card cooler or CPU cooler with the AG adapter which is included in delivery. Should an application shortly before the expansion tank be desired... No problem at all. Simply remove the AG adapter and screw a connection into the G1/4" thread on both sides and that's it. Fully potted and therefore absolutely leak-proof. Fully galvanized - no corrosion problems. Full function with any PC temperature gauge compatible with standard PC temperature gauges. Control your PC independently from the BIOS sensors: This is a double protection, similar to the well-known redundancy (double security) of the professional area.

10. Aqua Computer USB connection cable for VISION, internal
With this USB connection cable, a USB device from Aqua Computer (e.g., VISION) that features a miniature connector can be connected to a free internal USB port (header) on the motherboard. The cable is 100 cm long and comes in a discreet black color, making it very easy to install.
Technical details:
- Color: Black
- Length: 100 cm
- Connectors:
- Miniature connector (USB device from Aqua Computer)
- USB connector (for internal header of a motherboard).
