TDS METER
Specifications:
Measurement range: 0 - 9 999ppm (＞999ppm Display×10)
Accuracy: ±2%
Power Supply: 2*1.5V ( LR44 Button cell) (Included)
Operating Temperature: 32 - 176°F
Dimension: 153mm*30mm*14mm / 6.02"×1.18"×0.55"
Net Weight: 55g / 1.94oz
Features:
Automatic Temperature Compensation (ATC)
One button (HOLD) lock the testing result
Automatic shut-off after 9minutes with inactive
Non-Calibration required: TDS meter had been calibrated in producing

PH METER
Specifications:
Measurement range: 0.00- 14.00PH
Resolution: 0.01PH
Accuracy: ±0.01 PH
Power Supply: 2*1.5V (LR44 Button cell) (Included)
Operating Temperature: 0°F - 140°F
Dimension: 153mm*30mm*14mm / 6.02"×1.18"×0.55"
Weight: 50g / 1.76oz
Features:
Automatic Temperature Compensation (ATC)
One button (CAL) calibrate the PH meter
Automatic shut-off after 5minutes with inactive
Water temperature testing
Calibration:
a. Dissolve PH buffer powder in 250ml of distilled water.
b. Turn on PH meter and clean the electrode in distilled water, then immerse the electrode in the PH standard solution.
c. Press "CAL" button, make the reading equal to standard buffer solution PH 6.86, 4.00 or 9.18.
d. Clean electrode with distilled water and dry it.

PACKAGE INCLUDES:
1×TDS meter
1×PH meter
3×PH buffer powder
2×User's manual