"hobo data logger"

The HALO2 Wireless General Use pH Tester has a refillable glass body and spherical glass sensing bulb made for users that prefer a low-maintenance laboratory-grade pH electrode.

Our HALO2 Wireless Field pH Tester has a durable PEI body and spherical sensing bulb, perfect for use in the field.

This multiparameter meter is a waterproof portable logging multiparameter meter. The microprocessor based multi-sensor probe allows for the measurement of key parameters including pH, ORP, conductivity, dissolved oxygen, turbidity, and temperature. The complete system is simple to setup and easy to use.

Comprehensive, field-ready system for testing multiple water quality parameters with precision.

Advanced portable system for dissolved oxygen, pH, and conductivity testing in field conditions.