1. 3pin Interface: This PC water cooling meter adopts small 3pin interface, connecting to FAN interface. 2. Speed Observation: This computer water meter helps you observe the speed and working status of water . 3. G1/4 Thread: This PC water meter indicator adopts standard G1/4 thread that is suitable for most computer cooling pipes or connectors. 4. Material: This G1/4 thread water meter is made from rustproof and acrylic material, which ensures long service life. 5. LCD Display: This PC water cooling meter features VA LCD that provides 0.5s refresh rate. Item Type: PC Water Cooling Flow Meter Monitoring Range: 0 to 99 Voltage: 12V Interface Type: Small 3pin Colour:Black Material:pom+aluminum alloy Package Contents: 1 x PC Water Cooling Flow Meter(Due to different product batches, the appearance , which does not affect the use) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.