Azel DS-60P Dual Zone Digital Temperature Gauge(Thermometer) with 2 Sensor Probes

Dual Large LCD (Liquid Crystal Display) to show supply and return temperature Min/Max memory can be selected for both OUT(Supply) and IN (Return) water temperature since the last time RESET button was pressed Celsius or Fahrenheit switch on the front unit. Dual Power input: 24VAC or Lithium Battery (24VAC input has priority over Lithium Battery input if both power inputs are applied) Easy installation Frequent ample rate dictate any change in temperature instantly Two sensors included Temperature range: -58F to 302F (-50C to 150C) Accuracy: ±1C / ±2F Resolution: 0.1F(0.1C)