Digital ORP Pen Tester Portable Water Quality Monitor

1 Compact and portable pen design,easy to operate and storage. 2 Large and clear LCD, easy to read and accurately measuring functions. 3 The tester is made of high quality electronic components to ensure high accuracy. 4 Suitable for water sources, aquariums, hydroponics, swimming pools and other water systems. 5 The resolution of ORP tester is 1 mv, very high sensitivity.

What's in the box
1 x ORP Meter