• Waterproof
• Automatic pH calibration at 1 or 2 points; automatic conductivity and TDS calibration.
• Automatic temperature compensation from 0 to 60°C
• °C/°F selectable
• Selectable conductivity/TDS conversion factor.
• Stability indicator and battery percentage gauge indicating battery strength.
• All functions are accomplished with only two buttons.
• Multi-parameter probe housed in rugged plastic sheath with reinforced rubber cable and stainless steel DIN connector.
• Supplied with probe, 4 AA batteries, and hard carrying case.
  Specifications:
  pH Range: 0.00 to 14.00
  Temperature Range: 0.0 to 60.0°C, 32 to 140°F

Probes:

• 639-730-20 (HI 1288): compatible with older models
• 639-730-21 (HI 12883): compatible with newer models