• High ±0.01 pH accuracy
• Simultaneous pH and temperature (°C) display
• Suitable for most ASTM and EPA test procedures
• Double junction electrode ideal for dirty water, heavy sulfides, tris buffers and organics
• Increased reference gel volume offers significantly longer electrode life
• Certifiable to IP67 standards "waterproof and dustproof housing floats
• Replaceable sensor lets you reuse same meter body, saving you money
• Automatic temperature compensation
• Three point push-button calibration

High ±0.01 pH accuracy in a waterproof pocket-sized instrument! This unique Testr display pH and °C readings on a single large display. It also features a double junction electrode ideal for dirty water and solutions with heavy metals or other contaminants. Its waterproof, dustproof housing protects Testr from rugged field or plant environments.