Pocket Testers

Pocket testers are Apera's economical choice for general testing, and the easiest to carry. The 20 Value Series — PH20, EC20, TDS20 and Salt20 — offers automatic calibration, automatic temperature compensation from 0 to 50 °C and automatic recognition of stable readings in an IP67 waterproof and dustproof body. In the 60 Premium Series, the PH60 adds a replaceable probe and a colour-backlit display and reads to ±0.01 pH, with up to three-point automatic calibration and recognition of five buffer types; the family also includes the PH60F flat-surface tester, PH60S spear tester for food, solid and viscous samples, EC60 conductivity/TDS/salinity tester, PC60 multiparameter tester, ORP60 and the dual-channel PR60F pH/ORP tester.

The ZenTest 60-Z smart testers connect over Bluetooth 5.0 to the ZenTest mobile app, which guides calibration step by step and stores readings in the cloud; they measure up to seven parameters — pH, conductivity, TDS, salinity, resistivity, ORP and temperature — and still work as conventional testers without a phone. Compact pens include the SX610 for test tubes and the SX620 with ±0.01 pH accuracy, while the GroStar GS1 to GS4 pens are designed for growers and hydroponics.