Digital pen type water aquarium ph meter portable

This product is designed for field or field operation.It is a portable precision instrument that can display both PH value and temperature.It can be used in water quality monitoring, aquaculture, environmental protection, printing and dyeing, electroplating, beverage industry and scientific research units to determine water quality PH. Large digital high definition display screen ·Imported high precision sensitive electrode probe for more stable measurement ·Automatic calibration temperature compensation, simple operation, more accurate data ·Four button battery, easy to replace Model PH-20 PH-220 PH-20W PH-220W Measuring range PH:0.1-14PH Temperature:0-50℃(32-122F) PH:0.1-14PH Temperature:0-50℃(32-122F) PH:0.1-14PH Temperature:0-50℃(32-122F) PH:0.1-14PH Temperature:0-50℃(32-122F) Resolution PH:0.1PH Temperature:0.1℃ 1F PH:0.01PH Temperature:0.1℃ 1F PH:0.1PH Temperature:0.1℃ 1F PH:0.01PH Temperature:0.1℃ 1F Accuracy PH:±0.1PH Temperature:1℃ /2F PH:±0.02PH Temperature:1℃ /2F PH:±0.1PH Temperature:1℃ /2F PH:±0.02PH Temperature:1℃ /2F PH calibrate PH:25℃ Three-Points Calibration 4.0 6.9 9.2 PH:25℃ Three-Points Calibration 4.01 6.86 9.18 PH:25℃ Three-Points Calibration 4.0 6.9 9.2 PH:25℃ Three-Points Calibration 4.01 6.86 9.18 Electrode Built-in battery Built-in battery External connection battery External connection battery Working temperature 0-50℃(32-122F) Power supply 1.5V battery *4PCS Dimension 40*185mm Weight 88g