What probe type do I have
Sensor Combinations
M62 [Ca2+, Cl-, K+, Na+, NH4+, NO3-]
M63 [Ca2+, Cl-, Mg2+, Na+, NH4+, NO3-]
M64 [Ca2+, Cl-, K+, Mg2+, NH4+, NO3-]
M67 [Ca2+, Mg2+, K+, Na+, NH4+, NO3-]
M68 [Ca2+, Cl-, K+, Na+, Mg2+, NO3-]
NPK2 [Ca2+, K+, Mg2+, NH4+, NO3-, PO43- ]
If unsure what combination you had ordered or requested check with your sales agent or email support@cleangrow.com
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Charging the probe
To charge the probe, use the cable supplied via a computer USB port, or a standard phone charger. Charging is controlled to preserve the longevity of the battery so takes a few hours to ideally over night. You can see the charge level of the battery ...
Probe bluetooth connection
Sometimes the probe will not connect, this is usually because the batteries need to be above a certain threshold for the bluetooth to kick in Either connect your CleanGrow auxiliary battery pack or recharge your probe for a bit
Can I put the probe directly in soil?
No, Ion Selective electrodes can only work in liquid, they are potentiometric and work by measuring the potential difference between the charge built up as a result of free ions in solution against the fixed potential of the reference electrode also ...