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Features:
data-hold function and low-battery indicator
Measures PH,TDS,TEMP,EC,SG,ORP,Salinity.
Calibration Conductivity EC: Supports 3-point calibration automatic identification (1413us 12.88ms and 111.8ms) with 3 calibration points (1413uS/cm 12.88mS/CM 111.8mS/CM) 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
Waterproof rating: IP67
Sleek, lightweight design
Automatic Temperature Compensation (ATC)
Automatic shutdown :5 minutes
Power source: 3x1.5LR44( Not Included )
Display: Supports backlight

Specifications:
1. EC:
Range: 0-10000us/cm , 10.01- 19.99mS/cm , 20.1400.0mS/cm (Convert range automaticly)
Resolution: 1uS/cm; 0.1mS/CM;
Accuracy: ±2% F.S.
2. TDS:
Range: 0-10000ppm, 10.1- 200.0ppt (Convert sangeautomaticly)
Resolution: 1ppm; 0.1ppt
Accuracy: ±2% F.S.
3. Salinity:
Range: 0-10000ppm，10.1-200.0ppt，0.01%-25.00%
Resolution:1ppm；0.1ppt; 0.01％
Accuracy: ±2％FS 0.01-5.00％（±0.1％）：5.1-25.0％（±1％）
4.pH:
Range: 0.01-14.00рH
Resolution: 0.01pH
Accuracy: ±0.05 pH
5. ORP:
Range: ±999mV
Resolution: 1mv
Accuracy:±2mv
6. S.G:
1.000 -1.222
7.Temperature :
range: 0-60.0 °C 32.0-140 °F
accuracy: ±0.5°C
resolution: 0.1 °C / °F
Size: Approx. 183 x 37 x 37mm / 7.2 x 1.5 x 1.5in

Package contains:
1x 7 in 1 Backlight Water Quality Monitor Meter

Note:
The water quality detector requires pH meter calibration solution or powder calibration, this product does not contain pH meter calibration solution or powder.