Built-in microprocessor chips, intelligent functions such as automatic calibration, automatic temperature compensation, data storage, function set-up, self-diagnose information, automatic power-off and low voltage display.

 Double-parameter meter, equipped with three-in-one combination pH electrode and ORP electrode, automatic identification of electrode by meter.

 Automatic identification of 13 pH standard calibration solutions, three options of standard buffer solutions: Europe and America series, NIST series and China series.

 Able to set pH measurement modes of high purity water and pure water with ammonia

 Meter meets IP57 rating, equipped with calibration solution and portable case.

Category

Product Name

Basic features and specifications

PH

Measuring range

(-2.00 ~ 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 ~ 100)℃(automatic)

ORP

Measuring range (mV/ORP/EH)

-1999mV ~ 0 ~ 1999mV

Resolution

1mV

Accuracy

Meter:±0.1% FS, Overall: ±15mV

Other Technical Parameters

Data storage

200 groups

Storage content

Series number, measuring value measuring unit and temperature,

Power

Two AA batteries (1.5V x2)

Size and weight

meter:(65×120×31)mm/180g;Suitcase: (360×270×76)mm/1.6Kg

Quality and safety certification

ISO9001:2000, CE and CMC

Working Condition

Environment temperature

5 ~ 35 ℃(0.01grade)

Environmental humidity

≤85%

IP rating

IP57 Dustproof and waterproof

1. Model SX721 pH/ORP meter

1unit

2. 201T-S plastic pH/ATC three-in-one combined electrode

1pc

3. 301Pt-s plastic ORP combined electrode

3pc

4. pH standard buffer solution(pH4.00, pH7.00 and pH10.01/50mL)

1btl/each

5. 220mV ORP standard solution(50mL)

1pc

6.Screw driver

1pc

7. Spare AA batteries

2pcs

8. Operation manual

1pc

9. Carrying case

1unit