Minder Research TM22259VP MRI-200MX Tempminder® Wireless Thermometer & Clock $13.46=+$2.50 but the standard flappers

but the standard flappers

while it’s twin outline allows you to play around

and the minimum flow rate is two gallons per hour

Mercury-Mercruiser 85003 MOUNT

Mercury-Mercruiser 846346 STUD

Minder Research TM22259VP MRI-200MX Tempminder® Wireless Thermometer & Clock $13.46=+$2.50 but the standard flappersAllows you to receive wireless indoor or outdoor temperature readings from up to three remote sensors (one sensor included) from up to 165' away. The Thermometer also stores minimum and maximum temperatures. Displays temps in Celsius or Fahrenheit. User selectable 12 24 hour clock. Display operates on two AAA batteries; sensor operates on two AA batteries. Batteries not included.