NJTR-10A Portable PH Meter NJTR-10A Portable PH Meter: Convenient operation and excellent quality are our consistent pursuit of products. This product is the best embodiment of our company's consistent pursuit. It has the following advantages: easy to operate, simple operating interface, and the company's unique color card operation prompts, allowing the instrument to be operated without the need for an instruction manual. Low power design enables the instrument to work for a long time and is suitable for field operations; Equipped with rechargeable batteries and intelligent chargers, it can be recharged multiple times for use. Convenient for users to use. High quality and after-sales service ensure that you have no worries after choosing this product.