APERA SX725 Portable pH/DO Meter Kit

Apera SX725 is designed for lab-grade measurement of pH and DO (dissolved oxygen) in the field, suitable for general water solutions’ applications such as water treatment, groundwater, surface water, hydroponics, environmental monitoring, aquaculture, aquarium, beverage making, etc.

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APERA SX725 Portable pH/DO Meter Kit

Apera SX725 is designed for lab-grade measurement of pH and DO (dissolved oxygen) in the field, suitable for general water solutions’ applications such as water treatment, groundwater, surface water, hydroponics, environmental monitoring, aquaculture, aquarium, beverage making, etc.

Brief Intro

Basic Features

Intelligent functions –– auto. calibration, auto. temperature compensation, self-diagnosis, data logging, auto. power off, and more.
Digital filter technology –– enhance the meter’s response time and measurement accuracy
Automatic electrode recognition –– the meter automatically switches to the right parameter mode according to the connected electrode
Data logging –– 300 sets of data storage and recall
Built tough –– IP57 water-resistant structure, ideal for use in harsh environment

pH Electrode

The 201T-S pH/temp. electrode is featured with fast response and high accuracy. This electrode is suitable for general water solutions’ pH testing. A 3M KCL storage bottle comes with the electrode to keep its sensitivity.

Automatic pH Calibration

This meter can adopt 1 to 3 point automatic calibration, automatically recognizing 1.68, 4.00, 7.00, 9.18, 12.45. 3 bottled pH buffers are included (pH 4, 7, 10)

Complete Kit

All the necessary buffers and accessories are included in the rugged carrying case

DO500 DO Electrode

Apera’s proprietary 3-in-1 polarographic DO electrode’s polarization takes only 5 min vs. industry average 30 min. Measurement Range: 0-20.00mg/L Cable length: 2 meters Temperature unit: 30KΩ Thermistor

Quick response

Measurement reaches 90% response within 30 seconds. When measuring DO in static water, keep swirling the electrode at a slow speed to get a stable reading. For details, please refer to the tutorial video.

Easy DO Calibration

Easy calibration for saturated oxygen with the help of the calibration sleeve.

Automatic Compensation for Higher Accuracy.

Automatic compensation for temperature and salinity Manual compensation for barometric pressure (altitude).

TECHNICAL DETAILS (MODELS) SX725 Portable pH/DO Meter Kit

Measurement range	(-2.00 to 19.99) pH
Resolution	0.1/0.01 pH
Accuracy	Meter: ±0.01pH; Overall: ±0.02pH
Input current	≤2×10-12 A
Input impendance	≥1×1012 Ω
Stability	±0.01 pH/3h
Temp. compensation range	(0 to 100) ˚C (automatic)

Measurement range (mV/ORP/EH)	-1999 mV to 0 to 1999mV
Resolution	1mV
Accuracy	Meter: ±0.1% FS, Overall: ±15mV

Dissolved Oxygen

Measurement range	(0 to 19.99) mg/L (ppm); (0 to 200.0) %
Resolution	0.1/0.01 mg/L (ppm) 1/0.1%

Accuracy	±0.30 mg/L (ppm), including electrode error
Response time	≤30s (25˚C, 90% response)
Temp. compensation range	(0 to 45) ˚C (automatic)
Salinity compensation range	(0 to 45) ppt (automatic)
Barometric pressure compensation range	(66 to 200) kPa (manual)
Automatic calibration	Air saturated by water; water saturated by air
Electrode type	Polarographic