Hanna Instruments pH 4.01 Calibration Solution Container Size:20 ml - Case of 25 Hi/Lo Selector Switch: Wattage can

Hi/Lo Selector Switch: Wattage can be adjusted from 250-1250 watts in the low position and 750-1500 watts in the hi position (HLS Optional)

Supplies a high nitrate to ammoniacal nitrogen ratio to promote shorter internodal spacing resulting in stronger stems

and power cord

Remote Control Included with Wall Holder

Hanna Instruments pH 4.01 Calibration Solution Container Size:20 ml - Case of 25 Hi/Lo Selector Switch: Wattage canThis buffer value is widely used in water purification plants, in the food industry, and wherever the pH is expected to be slightly acidic Hanna Instruments ph 4 Buffer Specs: Traceable to NIST standards Available in bottles or sealed sachets, complete with or without a certificate of analysis Multiple resolutions for better accuracy NIST Traceability Standardized using a pH meter calibrated by means of two standard solutions prepared from NIST