Starter 400 Ohaus ST400-F PH Meter

Starter 400 Ohaus ST400-F PH Meter

The Starter 400 Ohaus ST400-F PH Meter  is a robust and high-precision instrument designed for accurate pH, mV, and temperature measurements in both laboratory and field environments. With its durable construction and long-lasting performance, this meter is ideal for environmental testing, water-quality control, beverage production, and academic research. Because it combines precision, ease of use, and portability, it ensures reliable results wherever it’s used.

Key Features

The ST400-F offers a wide measurement range from –2.00 to 16.00 pH, –1999 to +1999 mV, and –5°C to 110°C, making it versatile enough for various applications. Furthermore, it ensures high accuracy—±0.01 pH, ±1 mV, and ±0.5°C—allowing precise readings even in challenging environments.

This model includes the ST320 IP67 electrode with a 3-meter cable, which provides enhanced durability and waterproof performance, making it suitable for field measurements. The automatic temperature compensation (ATC) continuously corrects for temperature variations, ensuring consistent accuracy across all readings. In addition, its LCD backlit display offers excellent visibility in both bright and dim conditions, improving user convenience during data collection.

Moreover, the ST400-F runs on a rechargeable battery that provides up to 40 hours of continuous use, minimizing downtime between tests. Its compact and lightweight design—weighing only 0.77 lb (0.35 kg)—makes it easy to handle and transport. Consequently, users can rely on it for quick, accurate, and convenient field or laboratory measurements.

Technical Specifications

• Model: Ohaus Starter ST400-F 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-F is designed for laboratories, water-treatment facilities, beverage industries, and environmental monitoring stations. Because it supports both pH and mV measurement modes, it provides flexibility for diverse analytical needs. Additionally, its waterproof IP67 electrode allows reliable measurements in outdoor or humid environments. This combination of rugged design and precise performance makes it a trusted tool for professionals who value both accuracy and durability.