Have the product together with a seawater filter at Volvo SX drive installed on a 4.3 Gi engine. Installation is easy with a little flush on the threads and good tools. I now also connected the sensor with an LED lamp and a piezo signal generator. Thank God, I can turn off the piezo with a switch so that only the lamp remains as an optically conspicuous signal. The problem is that the flow rate in the standby gas does not bedet the switch so that the signal goes off. As soon as I give gas and the flow is increased everything is good. I have taken the 1 12 "because this corresponded to the 32 mm hose. Perhaps it would have been advisable only to select the 1" guard, so that the speed of the standpipe in the standpipe is also sufficient to move the switch. For myself, the primary warning is sufficient by the LED and I can switch on the cruise control, yes, the akoustische signal optional. Product itself makes a robust and stable impression.
After installation it was easy to control the cooling water flow. Unfortunately, after 14 days a hairline appeared in the upper part. Certainly not a problem by the warranty if only the stupid building and expansion would not be.
A little expensive (in the US it costs half price) but indispensable, it sounds as soon as the flow of water is stopped. It's super easy to install, even for a non-manual. Before I'd broken 2 times the engine, 1 time with seaweed and 1 time with a plastic bag. More cooling, it squeezes right away and the engine and good for breakage. Since I'm quiet.
Excellent alarm sensor with which the alarm threshold can be precisely adjusted. Have two of them in operation, on the engine and the generator. The generator often breaks the impeller blades with me and the reduction in the flow rate signals this sensor long before the generator switches off with overtemperature. Only a bit pricey. In the US, the same sensor costs just over 40 dollars. Nevertheless - absolutely recommendable.
The only thing that is good about the thing are the 6 screws that fasten the lid. Otherwise scrap. Alarm must work unconditionally. That definitely does not make this device.