A battery monitor is like a gas gauge, showing you how much electrical power is left (known as state of charge) as well as other vital signs. Today adding a monitor to a boat battery is easier than ...

Editors' note (September 28, 2017): Since publishing this review, Sense has identified 14 new devices: the HVAC, the oven, "unnamed heat 1," the microwave, "unnamed device 1," "unnamed motor 3," ...

What's a trend that was hot, is hot, and shows no signs of getting cold? Headrest monitors just make good-customizing sense. Monitor prices have dropped considerably with new technologies, most newer ...