Digital pH Meters for Field Testing
Pen pH meters from Ohaus provide accurate, straightforward operation at an affordable price and are useful in field or lab for soils classification and other applications. Units show pH measurements in the 0 to 14pH range on the large, easy to read LCD display. The pocket-size meters are constructed with a durable ABS housing, protective cap to safeguard the sensor, and automatic shutdown feature that preserves battery life. Pen meters endure prolonged use in rugged environments and feature IP67 waterproof design to prevent water damage. A wrist strap is included. The meters operate for approximately 200 hours on four included AG13 button-cell batteries. Working environment is 50°F to 104°F (10°C to 40°C) and 85%RH, non-condensing.
MA-257 Economy Pen pH Meter has range of 0 to 14x0.1 pH and accuracy of ±0.1pH. The built-in electrode is factory calibrated with no need for use of Buffer Solution, and the meter is not equipped with temperature measurement or compensation functions. Single-line LCD display.
Features:
- Easy-to-read display
- ABS housing
- Automatic shutdown feature preserves battery life
- IP67 waterproof design
- Battery-powered
Included Items:
- Economy Pen pH Meter
- Four AG13 button-cell batteries
- Wrist Strap
Accessories:
- Buffer Solutions for pH Meters used only with MA-258 Standard Pen model
Specifications
- Power Supply: Four AG13 button-cell batteries
- Product Dimensions: 1.8 x 7.3 x 1.5in (45 x 185 x 38mm) WxDxH
- Estimated Shipping Weight: 2.0lb (0.91kg).
Meets Standard(s):
- ASTM D4972
- AASHTO T 289
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