Brand new and high quality TDS-3B water quality monitor<br />Product size: 15 x 4 x 2 cm<br />Lock function: To read and record conveniently, the instrument will lock the reading<br />One Touch function: auto shutdown function: even if you forget to turn off power, there is no need to worry about wasting electricity, it will automatically turn off after 10 minutes<br />Range: 0-9990 ppm<br />Accuracy: ± 2%<br />Battery: 2 x LR44 (included)<br />1 x Water Quality Tester<br />In bag<br /><img src="http://img6.eachbuyer.com/x13/p62/ba056_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x13/p62/ba056_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x13/p62/ba056_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x13/p62/ba056_4.jpg" />                                                        <img src="http://img6.eachbuyer.com/x13/p62/ba056_5.jpg" />                                                        <img src="http://img6.eachbuyer.com/x13/p62/ba056_6.jpg" />                                                        <img src="http://img6.eachbuyer.com/x13/p62/ba056_7.jpg" />                                                        <img src="http://img6.eachbuyer.com/x13/p62/ba056_8.jpg" />