Starter 400 Ohaus ST400-G PH Meter

Starter 400 Ohaus ST400-G PH Meter

The Starter 400 Ohaus ST400-G PH Meter  is an advanced and portable device built to deliver reliable pH, mV, and temperature measurements in both laboratory and field environments. Because of its robust design and superior accuracy, it is widely used in water-quality testing, environmental monitoring, education, and industrial applications.

Key Features

The ST400-G offers a broad measurement range from –2.00 to 16.00 pH, –1999 to +1999 mV, and –5°C to 110°C, ensuring flexibility for a variety of sample types. Moreover, its high accuracy—±0.01 pH, ±1 mV, and ±0.5°C—guarantees dependable performance even in demanding conditions.

This model comes equipped with a ST320 IP67 electrode featuring a 3-meter cable, which allows accurate readings in both wet and outdoor environments. The automatic temperature compensation (ATC) function constantly adjusts for temperature fluctuations, thereby maintaining precise measurement stability. In addition, the LCD backlit display enhances visibility and makes data easy to read, even under low-light conditions.

Furthermore, the rechargeable battery provides up to 40 hours of continuous use, allowing extended operation without frequent recharging. Because it is lightweight—only 0.77 lb (0.35 kg)—and ergonomically designed, the meter is convenient for handheld use and easy to carry between workstations or field sites.

Technical Specifications

• Model: Ohaus Starter ST400-G pH Meter

• Measurement Range (pH): –2.00 to 16.00

• Measurement Range (mV): –1999 to +1999

• Measurement Range (Temperature): –5°C to 110°C

• Accuracy: ±0.01 pH; ±1 mV; ±0.5°C

• Resolution: 0.01 pH; 1 mV; 0.1°C

• Display: LCD Backlit Display

• Electrode: ST320 IP67, 3 m Cable (Included)

• Temperature Compensation: Automatic (30 KΩ NTC Sensor)

• Battery Life: 40 hours (Rechargeable)

• Power Supply: Rechargeable Battery (Included)

• Net Weight: 0.77 lb (0.35 kg)

• Dimensions (L × H × W): 9.05 × 1.57 × 3.94 in (230 × 40 × 100 mm)

• Working Environment: 5°C – 40°C, 80% RH, non-condensing

• Measured Parameters: pH / mV / Temperature

Applications

The Ohaus ST400-G is ideal for academic laboratories, industrial quality control, wastewater management, and environmental testing. Because it supports both pH and mV measurements, it provides versatility for various analytical needs. Additionally, the waterproof IP67 electrode ensures reliable readings even in humid or outdoor settings. Its portability and long-lasting power make it a dependable instrument for professionals who require consistent accuracy on the go.