Apex PM1 (pH/ORP & Temp) & PM2 (Sailinity) modules for sale. $40 for each. Pickup in Hopkinton. PM if interested.
Does not include probes.
Comes with 6 foot aquabus cable.
PM1 - bought August 2019
PM2 - bought May 2019
Does not include probes.
Comes with 6 foot aquabus cable.
PM1 - bought August 2019
PM2 - bought May 2019