Handy Type pH Meter SK-625PH + PHP-31 SK Sato

Handy Type pH Meter SK-625PH + PHP-31 SK Sato

Portable Precision pH Meter with Probe and Automatic Temperature Compensation

The SK-625PH + PHP-31 Handy Type pH Meter from SK Sato is a compact, high-accuracy pH measuring device designed for versatile use in laboratory and field environments. Equipped with the PHP-31 sensor probe, it provides both pH and temperature measurements with automatic temperature compensation, and supports three-point calibration for high precision.

Its ergonomic design, LCD screen with backlight, and features like max/min value memory make it an ideal tool for applications such as water quality monitoring, wastewater analysis, fermentation processes, and more.

Product Features

• Compatible with various sensor probes for different applications

• Automatic temperature compensation when using the PHP-31 probe

• Three-point calibration at pH 4.01, 6.86, and 10.01 (at 25°C)

• Auto power-off after 20 minutes of inactivity

• LCD backlight for easy reading in dim lighting

• Max/min value recording function

• Continuous measurement possible with optional AC adapter

• Real-time data communication via RS-232C cable (optional)

Applications

• Water quality monitoring in rivers and industrial wastewater

• Agriculture and horticulture: pH control of soil and nutrient solutions

• Food and beverage industry: monitoring fermentation and raw materials

• Research and education: laboratory pH experiments

• Industrial process control: continuous monitoring of pH in production systems

Specifications

• Model: SK-625PH + PHP-31

• pH Measurement Range: 0.00 to 14.00

• Temperature Range: 0.0 to 50.0°C

• pH Accuracy:

  • ±(0.3 + 1 digit) for pH 0–2

  • ±(0.1 + 1 digit) for pH 2–12

  • ±(0.4 + 1 digit) for pH 12–14

• Temperature Accuracy:

  • ±0.5°C (20–30°C)

  • ±0.7°C (outside this range)

• Resolution:

  • pH: 0.01

  • Temperature: 0.1°C

• Sensors:

  • pH: Glass electrode

  • Temperature: Thermistor

• Operating Environment: 0 to 50°C, below 80% RH (non-condensing)

• Power Supply: 9V battery x1 or optional AC adapter

• Battery Life: Approx. 120 hours (continuous use with zinc-carbon battery)

• Main Unit Material: ABS resin

• Sensor Material: Glass

• Dimensions:

  • Main Unit: 72 (W) x 182 (H) x 32 (D) mm

  • Sensor Probe: 12 mm diameter x 135 mm length, 1 m cable

• Weight:

  • Main Unit: 220 g (with battery)

  • Sensor: 76 g

Standard Accessories

• PHP-31 pH/Temperature probe

• pH calibration solutions (4.01, 6.86, 10.01) – 23 mL each

• Carrying case

• 9V battery

• Instruction manual

Optional Accessories

• AC Adapter (Model PH30)

• RS-232C Cable (Model PH33, 1.5 m)

Important Notes

• Additional calibration solutions are recommended for accurate measurement

• Avoid using the sensor in organic solvents, oils, adhesives, surfactants, or extreme pH (below 2 or above 12)

• Pure or tap water may cause unstable readings

• For food or drink samples, immerse the probe at least 3 cm and do not consume the sample afterward

• Handle the glass electrode with care to prevent breakage

The SK-625PH + PHP-31 Handy Type pH Meter is an excellent tool for professionals who need a portable, accurate, and durable solution for pH measurement across a variety of environments and applications.