[PRECISE MANIPULATION]3 way water flow meter helps you to monitor the speed and working states of the water flow. [LOW TEMPERATURE OPERATION]A precise digital thermometer monitors temperature of the PC water cool system in real-time. [PROFESSION HIGH-QUALITY MATERIAL]4 pin power supply interface, easy to install.High-quality and , work well in -50 Celsius~110 Celsius temperature. Thermometer with LED digital display, only shows the temperature. colour: black + transparent Material: acrylic + plastic size: 4x4x2.3cm Package Contents: 1*Flow meter 1*thermometer 2*pagodas 2*clips Only the above package content, other products are not included. Note: Light 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.