便携式水质检测设备怎么选：四参数、五参数、六参数、污水八项与藻类专项

选便携式水质检测设备，件事不是比价格，而是把要测哪些项目列清楚。同样叫便携式水质检测仪，有的只测四项基础参数，有的能把污水八项一次带齐，配置差出好几档。山东雷穹电子的 LQ-SS 系列一共五款主机，正好按检测项目分档，本文把它们摆在一起对照。

四参数：LQ-SS04 手持式水质检测仪

标配温度、pH、电导率、溶解氧四支传感器，是系列的通用基础款。溶解氧用荧光寿命法，0～20mg/L，精度 ±2%，不消耗膜头；pH 走盐桥电化学，0～14 量程，±0.1pH。日常巡查、教学演示、水族管理，四参数够用。

五参数：LQ-SS05 补上氨氮

在四参数基础上增加氨氮（0～1000mg/L，离子选择电极法）。水质检测常规五参数指的就是水温、pH、电导率、溶解氧、氨氮这一组，SS05 一台覆盖，适合把五参数当台账的场合。

六参数：LQ-SS06 面向养殖

再增加浊度（0～40NTU 起，±1%）。溶解氧加氨氮加浊度，正好是水产养殖最盯的三个指标，塘口边测边调水。

污水八项：LQ-SS07

在六参数上再加 COD（0～500mg/L，UV254 吸收法 ±5%，带自动清洁器防光窗污染）与余氯（0～5.00mg/L，±5%）。进出水口对照采样，一台完成。

藻类专项：SS15S / SS16S

水中叶绿素 a 测定仪 LQ-SS15S（0～400μg/L）与水中蓝绿藻分析仪 LQ-SS16S（0～200.0Kcells/mL），荧光法 R2>0.999，用于水库、湖泊的藻情巡查与水华预警。

五款机型对照表

怎么倒推：一个问题定型号

先把检测项目清单列出来：只看基础水质，SS04；要台账五参数，SS05；养鱼养虾，SS06；盯污水指标，SS07；水库湖泊防藻，SS15S/SS16S。五款共用同一套 3.5 寸触屏主机与 ftiot 系统，配件通用，后续加测项可以按传感器补配。

常见问题

• 便携式水质检测设备一般能测几项？ 按机型从四项（水温/pH/电导率/溶解氧）到八项（再增氨氮、浊度、COD、余氯），藻类专项机型分别测叶绿素 a 或蓝绿藻。

• 需要频繁更换耗材吗？ 溶解氧为荧光寿命法，无需换膜填液；pH 电极属常规维护件，按使用频次养护即可。

• 后续能加测项目吗？ 可以，五款共用同一套主机与 RS485 全数字传感器接口，按需补配传感器即可。

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