0-14 pH Electrode Probe BNC Connector, 300cm Cable for PH Meter Monitor Controller Test Sensor, Replacement Kit for Aquarium Hydroponics Plant Pool Spa 300cm Long Cable Electrode Color:300cm Long Cable Electrode 1)24 hours with flash and

1)24 hours with flash and alarm2)24 hours with flash but without alarm3)12 hours with flash and alarm4)12hours with flash but without alarmSturdy made with good quality plastic

short press the "horn key" to save the alarm value

High performance: Excessively high and low battery voltage will influence the service life of car battery

Fits for 3/16"

Patent design provides for smooth entry clean

0-14 pH Electrode Probe BNC Connector, 300cm Cable for PH Meter Monitor Controller Test Sensor, Replacement Kit for Aquarium Hydroponics Plant Pool Spa 300cm Long Cable Electrode Color:300cm Long Cable Electrode 1)24 hours with flash and0 14 pH Electrode Probe BNC Connector, 300cm Cable for PH Meter Monitor Controller Test Sensor, Replacement Kit for Aquarium Hydroponics Plant Pool Spa Features 300 CM Long Replaceable pH electrode is easy to calibrateReplacement kit set that comes with a set of free calibration powderProvides instant measurement & simple operationEasy monitoring of pH accuratelyComes with protective cap to ensure the safety of the bulbWith Automatic Temperature