Pool line orp controller and dosing pump with HI-20053 orp p

HI2000 series ORP electrode for continuous flow-thru monitoring

HI-190M-2 Magnetic stirrer with ABS cover; 220V

Magnetic mini stirrer, charcoal

HI-144002 USB communication cradle for HI-144002 T-logger

HI-1413S/50 pH electrode

HI-1286T pH electrode

pH Sensor

HI-1285-9/20 GroLine pH/EC/TDS/Temperature Probe