品名:笔式酸碱计型号:AZ8681特点：经济笔型酸碱计，双屏幕可同时显示温度与酸碱值；温度补偿功能，三点自动校正，简易操作。具有IP67级数防水功能；自动补偿/辩识溶液温度避免校正错误；资料保留功能，省电关机可解除。技术参数PH量程：0.00～14.00分析度：0.1pH准确度：±0.2pHmV量程：-499～499 分析度：±1mV(±190～499.0) 准确度：±2mV(±190～499.0) 显示：4位 尺寸：149×37×42mm 工作温度：0～50℃(32℃～122℉)  工作湿度：0～80%RH 自动电源断开：20分钟后 输入阻抗：1012Ω  ◆     LOWEST COST pH PEN !◆DUAL DISPLAY TEMP. & pH WITH ATC !◆ONE TOUCH FOR AUTO-CALIBRATION !◆WATERPROOF HOUSING MEETS IP67 RATING !◆AUTOMATIC BUFFER RECOGNITION TO AVOID ERRORS DURING CALIBRATION !FEATURE◆All push button operation, one touch only for automatic calibration, depress another to increase or decrease the calibration values.◆Dual LCD display for pH /℃&℉◆Automatic Temperature Compensation assures that readings are corrected for temperature offsets.◆Calibration up to 3 (pH 4.00,7.00,10.00) points.◆Hold ( Shows digit dot freeze on the screen ).◆Easy to replace and assemble with new battery (LR44).◆No tools or trimmers needed for calibration.◆Supplied with battery , manual , gift box.◆Wide range of application: Pools, Aquariums, Labs, Aquaculture, Car washes, Water testing and Waste water treatment.