Bluelab pH Pen | Hydroponic pH Meter | Bluelab – Bluelab USA
Compact Bluelab pH Pen delivers quick, reliable pH & temperature readings. Waterproof and durable, ideal for hydroponics, nutrient solutions & grow rooms.| Bluelab USA
Compact Bluelab pH Pen delivers quick, reliable pH & temperature readings. Waterproof and durable, ideal for hydroponics, nutrient solutions & grow rooms.| Bluelab USA
Compact Bluelab Conductivity Pen delivers precise EC & temperature readings. Factory calibrated and waterproof for nutrient solution monitoring. Test water PPM or TDS| Bluelab USA
