



HM Digital - Calibration, Buffer and Storage Solution Packets (20 x 20 mL)
Brand: HM Digital
HM Digital Calibration, Buffer and Storage Solution Packets (20 x 20 mL)
HM Digital solution packets put a fresh 20 mL dose of calibration standard, pH buffer or electrode storage solution in each single-use sachet, packed 20 to a box. Single-use packets mean every calibration starts with fresh solution, as HM Digital's meter manuals recommend.
Keep packets at reservoir stations, in field kits and in the facility lab so operators can calibrate pH and EC/TDS instruments on schedule in indoor cultivation and controlled-environment agriculture. These are the same pH 4, pH 7, 1000 ppm and storage packets HM Digital supplies with its HydroMaster monitors, and they can also be used with other brands of pH and EC/TDS meters that calibrate to these values. Storage solution is for keeping pH electrodes hydrated between uses - calibrate with a buffer, not storage solution.
Available Options
- 1000 ppm TDS Calibration - CP-1000, sodium chloride (NaCl) standard, 1000 ppm / 2000 uS (2 mS)
- pH Electrode Storage - PH-PSTOR, potassium chloride (KCl) storage solution
- pH 4.0 Buffer - PH-P4
- pH 7.0 Buffer - PH-P7
- Mixed Pack (1000 ppm TDS, pH 4, pH 7, Storage) - ASP-20, 5 packets of each solution
Key Features
- 20 single-use 20 mL packets per box
- Fresh, single-use solution for every calibration
- Boxes marked NIST traceable
- 1000 ppm NaCl standard calibrates EC (2000 uS / 2 mS) or TDS meters
- pH 4 and pH 7 buffers for one- or two-point pH calibration
- KCl storage solution keeps pH electrodes hydrated between uses to extend sensor life
Ideal Applications
- Routine calibration of pH and EC/TDS pens, portable meters and continuous monitors
- Recalibration after installing a replacement sensor or probe
- Overnight and long-term pH electrode storage
- Field kits for multi-room or multi-site checks
Choose options