Adwa AD130 Waterproof Portable pH Meters (-2.00~ 16.00 pH)

Range: pH -2.00 to 16.00; ORP: -1999 to +1999 mV; Temp: -20.0 to 120.0°C (-4.0 to 248.0°F)

Resolution: pH 0.01; ORP 0.1 up to ±699.9 mV / 1 mV (outside); Temp 0.1 °C (0.1°F)

Accuracy(at 25°C/77°F):

pH ± 0.01 pHORP ±0.2 up to ±699.9 mV / ±1 mV (outside); Temp ±0.4°C (±0.8°F)

Calibration: pH up to 2-points

Buffers: pH 1.68, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45

Temperature compensation: ATC/MTC (-20 to 120°C)

Calibration ORP: factory

UNIT: °C and °F

LCD: 2 rows

Hold function: yes

Low battery indication: yes

Stability indicator: yes

Auto shutt-off: 20 min. (can be disabled)

Power supply: 4 x 1.5V AA batteries

Battery life: 500 hours approx

Features: ATC & MTC, HOLD function, Auto Shut-Off

Supplied with:  in carton box ,AD1230B pH electrode with Epoxy body, AD7662 stainless steel temperature probe ,calibration solution in sachets (pH7 and pH4, 20 ml each), 1.5V AA alkaline battery (4 pcs), user manual.