TDS
Function:
Easy to read and record the instrument will lock the reading;
5 minutes auto-off feature, the battery will not run electricity;
Range: Conductivity: 0-9990us / cm
TDS: 0-9990ppm
Fahrenheit: 32.0-176 .0
Testing range: Pure water production and consumption, electroplating liquid, boiler water, the fish tank water, swimming pool water cleanliness, photographic rinses, well water, deep well water, laboratory, aquaculture, food processing, family, office, physical and chemical teaching, ionization makeup water, municipal water supply, travel health care.

How to use ?
1. Pull out the cap
2. Click the button on/off, and insert the plub into the liquid.
3. When the reading is steady, click the button "Hold", then, get the result
4. After use, clear the plub.

Instrument features:
1. Lock Function: easy to read and record, the instrument will lock the readin
2. 5-minute auto shut off feature, battery CR2025(not included ) won't run off
3. Measurement Range:
Conductivity: 0 -- 9990us/cm
TDS: 0-5000ppm
Degrees Celsius: 0 .1 -- 80 .0.0 c, F: 32 .0 -- 176 .0 F
4. Accuracy: 2%

Shift between TDS & Conductivity:
The factory default TDS data, if the conductivity data of the solution is needed , please touch the SHIFT button, the instrument automatically shifted
Automatic temperature compensation: The instrument with automatic temperature compensation function under measurement mode.
Temperature shift: Continuous touch the SHIFT button twice, degrees Celsius and degrees Fahrenheit conversed, the factory default degrees Celsius
Maintenance: Keep the electrode clean, cover the electrode protective sleeve, please take out the batteries for long periods idle.

Note:
1. The instrument is a professional instrument, please under professionals instructions in order to avoid instrument failure
2. Avoid heat, direct sunlight
3. Please adopting standard buffer solution calibration, incorrect calibration would cause measurement error, thus affecting the accuracy of the test solution, or cause the instrument not working properly.
4 . Do not thrown the instrument into the test solution to avoid the circuit board short circuit.

PH Meter:
For this PH TESTER, it does not includes calibration liquid, the one you get maybe not accurate, In order to ensure the accuracy of this item pls make calibration when you get the parcel
100% brand new and high quality
Display: LCD Digital
Accuracy: 0.01
Resolution: 0.01
Operating Temperature: 0~80°C
Measuring Range: 0.00~14.00
Probe Type: Precision glass bulb electrode
Calibration Method: 2 points automatic calibration
Power Supply: AG 13 Batteries(Not included!!!)
Size: 155*29*16mm