LAQUAtwin pH-11 Pocket pH Meter

Features

• Minimum sample: 0.1ml, or 0.05ml with sampling sheet B
• Calibration at up to 2 points, performed automatically
• Shows pH and mV
• Recognizes USA and NIST pH buffers automatically
• Automatic temperature compensation
• Auto stable and auto hold measurement
• Switches itself off after 30 mins
• Low battery warning
• IP67 rated against dust and water
• Sensor can be replaced
• 400 hours of battery life in continuous use without backlight
• Body in ABS epoxy
• Custom monochrome LCD with backlight
• Works at 5 to 40°C and 85% relative humidity or less
• Warranty of 2 years on the meter and 6 months on the sensor
• Comes in a handy carrying case with pH 4.01 and 7.00 buffers (14ml each), 2 x CR2032 batteries, a dropper, instruction manual and quick guide

Specifications (pH-11, pH-22 and pH-33)

• Measuring principle: glass electrode
• Minimum sample volume: 0.1ml (0.05ml with sampling sheet B)
• pH range and resolution: 0.0 to 14.0 pH at 0.1 pH (pH-11); 0.00 to 14.00 pH at 0.01 pH (pH-22, pH-33)
• mV range and resolution: ± 650 mV at 1mV (all three models)
• Calibration points: up to 2 (pH-11), up to 3 (pH-22), up to 5 (pH-33)
• Accuracy: ±0.1 pH (pH-11); ±0.01 pH (pH-22, pH-33)
• Temperature display: 0 to 50.0 °C (pH-33)
• Temperature calibration: 5 to 40.0 °C (pH-33)
• Display: custom (monochrome) digital LCD with backlight
• Operating temperature: 5 to 40°C
• Operating humidity: 85% or less relative humidity, non-condensing
• Power: 2 CR2032 batteries
• Battery life: approx. 400 hours of continuous use without backlight
• Size: 164 × 29 × 20mm, projections excluded
• Mass: approx. 55 g with sensor and batteries
• Functions: auto calibration, auto buffer recognition, auto temperature compensation, temperature calibration (pH-33 only), auto stable / auto hold, auto power off (30mins), switchable backlight, low battery indicator, IP67 dust / waterproof, replaceable sensor