Toolbox

25X Zoom Binoculars and 70mm lens dimeter size are suitable for observation and astronomy

Water Resistant - 20X Zoom Binoculars and 80mm lens dimeter size suitable for observation and astronomy

Tool to test the content of dissolved substances in water by means of electrolysis (electricity)

Hanna HI 98130 (combo) is waterproof, fast and accurate and portable (easy to carry everywhere).

Small Size Mini Binoculars Suitable for Tourist Concerts

Calibration liquid pH 10.01 for calibration of a 1-gallon pH meter (3.78 Liters)

Calibration liquid pH 10.01 for calibration of pH Meter size 500ml

Calibration liquid pH 10.01 for calibration The pH meter size 500ml is equipped with a certificate

PH 9.18 calibration liquid measuring 230ml for calibration of the pH meter

Calibration liquid pH 10.01 230ml size for pH Meter calibration