pH pen for standard test tubes 16x50 mm or larger. Range: 0 - 14, Accuracy: +/- 0.2, Designed for simple one-hand operation. Automatically calibrates to pH 4, 7 and 10 buffers and can be adjusted to recognize any buffer. The case is IP65 waterproof. Probe: 120 mm Ă— 12 mm
Unit measures conductivity/total dissolved solids/temperature. Conductivity range is 0 to 1999 microsiemens and 0 to 19.99 millisiemens. Accuracy is +/-1% full scale +1 digit. Large 1/2 inch high LCD digits plus tough, waterproof ABS plastic housing.
Durably Constructed to Withstand Wear and Tear Resulting from Repetitive use,Waterproof Housing Protects the meter in their Working Environment,Simple Operation in a Slim and Portable Design,measurement of pH, oxidation-reduction potential(ORP), conductivity, salinity