--5-in-1 Tester: The digital water quality TDS pH tester has monitoring, pH, salinity, EC meter and temperature measurement functions.

--Tester Auto Power Off and Large Display Tester The pH tester has a backlit LCD to help you see your measurements clearly in any situation.

--The Auto Power Off feature turns off the power after 5 minutes of inactivity to save energy.

--It uses a fully transparent liquid crystal (LCD) to display 4-digit values and corresponding physical units.

Description:
Name: Digital Tester

EC measurement range: 0 to 10000us/cm 10.01-19.99ms 20.1-400ms/cm
Resolution: 1 US/cm; 0.1 ms/cm;
Accuracy: 2% of reading
TDS measurement range: 0 to 1000ppm 1000ppm to 10000ppm 10.1 to 200.0ppt
Resolution: 1ppm; 0.1ppt
Accuracy: 2% of reading
Salinity measurement range: 0.00 to 25.00%
Resolution: 0.01%
Accuracy: 0.01-5.00% (±0.1%) 5.10-25.00% (±1%)
pH measurement range: 0.01-14.00ph
Resolution: 0.01pH
Accuracy: ±0.05pH
Temperature range: 0.1-60.0℃ 32.0-140℉
calibration:
EC conductivity: supports 3-point calibration (1413us/cm 12.88 ms/cm 111.8 ms/cm), automatically recognizes 3-point calibration (1413us 12.88ms and 111.8ms)
Ph: 1 point (6.86) or 2 points (6.86 4.00) (6.86 9.18) or 3 points (6.86 4.00 9.18) can automatically identify the calibration solution
features:
1. tds measurement range: 0-1000ppm, ec measurement range: 0-10000us/cm, ph measurement range: 0.01-14.00ph, salinometer measurement range: 0.00-25.00%, temperature conversion function.
2. When the measured value is stable, just press the hold/temp key to lock the measured value and take it out for viewing, very simple.
A digital pH meter with two salinometers can detect the salinity of table salt. At the same time, it can detect the salinity of seawater. Food salinity measurement range: 0.00-25.00%, seawater salinity measurement range: 10.1-200.0ppt.
3. Automatic temperature compensation affects reading levels, hydroponic digital pH meter has better range from 0°C-60°C (32°F-140°F), automatic temperature compensation ensures you get the best reading, So you can test with confidence in any environment.
4. Chip Accuracy The high precision algorithm chip and electrodes of our digital water pH tester ensure accurate and fast response. 

NOTE: Electrodes need to be cleaned each time they are used.

Packing list:

1 x Digital Tester
1 x English manual
3 x pH damping power

Note:
Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. 
Manual measuring,please allow 1~3mm error,thank you.