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非常易于使用,適合pH 7 and pH 10。打開包然后插入儀器進行校準測量。可用于pH /溫度袖珍儀(B01410WA)和pHep電子pH值測試儀(B01138WA)校準。5個/包
Easy-to-use 20 ml packets of each solution for pH 4 and pH 7. Open the packet and dip the meter in to calibrate. Can be used for both the pH/Temperature Pocket Meter (B01410WA) and the pHep Electronic pH Tester (B01138WA). Five packets of each.