Description:<br>This digital pen style pH meter is an ideal instrument for aquarium, fishing industry, swimming pool, school laboratory, food  beverage etc.<br>100% brand new meter with protective plastic case and calibration screwdriver<br>Excellent meter, very acurate and durable<br>Specification:<br>Calibration: manual,1 point<br>Item Net Weight: approx. 57g (after installed batteries)<br>Dimensions: 152 x 29 x 20mm (5.984 x 1.142 x 0.591 inch)<br>Package Included:<br>1 x Digital pH meter<br>1 x Calibration Adjustment screwdriver<br>3 x Batteries Included in pH Meter<br>1 x User instruction(English)<br /></p> <br /></p><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/54d9b29ba96fdf09a170c5f5-1-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/54d9b29ba96fdf09a170c5f5-2-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/54d9b29ba96fdf09a170c5f5-3-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/54d9b29ba96fdf09a170c5f5-4-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/54d9b29ba96fdf09a170c5f5-5-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/54d9b29ba96fdf09a170c5f5-6-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/54d9b29ba96fdf09a170c5f5-7-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/54d9b29ba96fdf09a170c5f5-8-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/54d9b29ba96fdf09a170c5f5-9-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/54d9b29ba96fdf09a170c5f5-10-original.jpg" alt=""width="800" noproxy><p style="text-align: center;">