95 in (180 × 65 × 32 mm)

batteries and instructions

100% Calibration: Water-saturated air (standard method)

Light Detector: Silicon photocell and 525 nm narrow band interference filter

TDS to EC Conversion Guide

Milwaukee CD97 Low Range TDS Pen Tester | 0–999 ppm | ATC | Water Conditioning, RO & Education aquarium TDS tester 95 in (180 × 65Milwaukee CD97 Low Range TDS Pen Digital PPM Tester with ATC Monitor water purity with confidence using the Milwaukee CD97 a compact, digital Total Dissolved Solids (TDS) pen tester engineered for water conditioning, reverse osmosis (RO) system verification, hydroponics, aquarium maintenance, drinking water testing, and science education. Simple, accurate, and built to last, the CD97 delivers reliable ppm readings with Automatic Temperature