Bykski Digital Display Oled Flowmeter Thermometer, Rotor Flow Meters, Water Cooling System Alarm, Protect Cpu and Gpu, B-TFC-CS-X

This is a great way to monitor coolant temp and flow. I was using 2-pin temp sensors but wanted to know how much flow I was getting and this did a great job of providing flow info and removing one of my temp sensors. Highly recommend this product.

Never mind. It's not Aluminum

This works really well and the price is great! Only thing I'd love to see is a connector to connect my pump's sense wire to the device to see the actual pump RPM.