Pocket Digital pH Meter Tester Pen 0.05pH - ATC Waterproof for Pool Aquarium Lab

img{max-width:100%} pH-2011 Waterproof Digital pH Meter Pen Pen style digital PH meter LCD indicator panel On/off power power switch Compact size and light weight for easy portability Available for wide applications such as aquariums, fish hatcheries, food processing, photography, laboratories, quality control, and swimming pools SpecificationsDimensions 6" x 1" Weight 2oz Power 4x AG-13/1.5V (included) Measurement Range pH: 0 to 14.00 pH Resolution pH: +- 0.01PH (after calibration) Temperature Compensation/Operating Temperature 0℃~50℃ Items Included One (1) pH Meter Pen Four (4) AG-13 batteries One (1) Flat head screw driver Two (2 pH buffer powder packets Payment, Shipping, and Returns Payment -- We accept Paypal and all major credit cards. Shipping -- We will ship your items within one business day after full payment is received. Return & exchange -- We accept 30-day returns for full-refund or exchange.