2-1/16" DIGITAL WARER TEMPERATURE, WHT, INDEPENDENT INTELLIGENT JUDGMENT ALARM OF THE INSTRUMENT, NO SENSOR SIGNAL REQUIRED, RANGE0-999 $8.9-$12.9 KUS Digital Water Temp Gauge - CETR $17.9-$19.9 Digital Water Temp Gauge Meter 40-120 Degree 52mm 12V/24V with Backlight $8.9-$12.9 52mm Digital Water Tank Thermometer 0-190 Ohm Digital Water Temperature Meter $10.9-$13.9 52mm Digital Water Temperature Gauge 40-120 Degree With LED Display $8.9-$11.9