All GHL measurement electrodes are made of the highest laboratory grade. They are durable, low maintenance, and matched to the highest German quality standards. Most models feature extra-long connection cables (3 m), which are specially made for use in the aquarium hobby. All sensors are galvanically isolated and can therefore easily be used in parallel in any combination. Please note the below explanations of warranty and guarantee of sensors.

Calibration can be carried out by our menu-guided system in the ProfiLux Controller.

In the section, “sensor accessories” we also offer various sensor holders, calibration fluids, cable extensions and maintenance kits.

The following sensors are available:

pH, Redox, Conductivity, Oxygen Sensors

Niveau Sensors

Water Temperature, Air Temperature, and Humidity Sensors

Flow Sensors

Leakage Sensors and Leakage Interface

Sensor Accessories

Warranty and Limited Guarantee for Sensors

Sensors are items that wear out during normal use. A sensor’s life span depends on the environment and operation conditions. Due to many circumstances, it is impossible to make an exact prediction about the lifespan. For electrochemical sensors, a life span of 6 to 24 months is common. Electrical and mechanical sensors can operate for up to several years with normal care.

Therefore the legal warranty is not valid for these kinds of parts. Instead, GHL offers the following limited warranty for sensors:

Electrical and mechanical sensors (level sensor, temperature sensor, conductivity sensor, humidity sensor) will be replaced in the first 12 months after purchase.) *

Electrochemical sensors (pH-electrode, redox-electrodes, oxygen-sensor) will be replaced in the first 6 months after purchase.) *

*Valid from the date of the original invoice, a copy of the original invoice is required. Appropriate and intended use, correct maintenance, and care are required. We offer no replacements for broken glass, damaged cables or connectors, or other mechanical damages.