Water proof ph-618 pH meter detection pen

feature:
Used to measure the PH value and temperature of the solution.
Waterproof grade IP65, replaceable sensor probe.
Automatic correction function.
Suitable for water sources, aquariums, hydroponics, spas, swimming pools and other water systems.
Various applications for testing the acidity and alkalinity levels of almost any liquid.
Small and light pen design.
Automatic shut-down.
Easy to use and provides immediate results

specification:
Range: 0 ~ 14.00ph
Resolution: 0.01ph; 0.1 ° C (0.2 ° F)
Accuracy: ± 0.1ph; ± 1 ° C
Working temperature: 0 ° 50 ° (122 °, 32 °)
Temperature compensation: 0 ° c ++ 50 ° (32 ° f)
Battery: 4 1.5V (× ag-13) button batteries (not included)
Color: yellow
Material: ABS
Product size: 18.8 × 3.5 × 3.5cm / 7.4 × 1.4 × 1.4in
Product weight: 73.7g / 2.6oz 
Packing size: 21 × 10.4 × 5cm / 8.3 × 4.1 × 1.9in