GS5-E ORP Electrode for GroStar Pocket Testers

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The GroStar™ GS5-E ORP Electrode is compatible with the GroStar™ GS1, GroStar™ GS2 and GroStar™ GS4. When the electrode is connected, the instrument recognizes the electrode and automatically switches to ORP measurement mode, in which the redox potential (ORP) of liquids, such as nutrient solutions, can be measured.

  • Allows the measurement of the redox potential (ORP) of nutrient solutions and other liquids with GroStar™ pH Pen Testers.
  • Equipped with platinum sensor and double-junction.
  • Can be attached quickly and easily without additional tools, the device automatically switches to ORP measurement mode.
  • Compatible with Pocket Testers GS1, GS2 and GS4 from the GroStar™ series.


Technical Specifications:

ORP Measuring range -1000 to 1000 mV
Diaphragm Double-junction
Sensor type Platinum
Reference electrode Ag/AgCl
Electrolyte Gel KCl
Temperature Measuring range 0 to 50°C (32 to 122°F)
Temperature sensor 30KΩ thermistor
More Housing Polycarbonate
Dimensions 75×35×35 mm


This electrode has a 12-month manufacturer's warranty.

Descrizione Valore
Descrizione del tipo di prodotto: ORP-Elektrode
brevetto regionale: GroStar®
Diametro: 35 mm
Lunghezza: 75 mm
Materiale dell'albero: Plastica
Elettrolita di riferimento: Gel
Tipo di termocoppia: NTC
Termometro integrato: sì
Tipo di sensore di temperatura: NTC
Descrizione Valore
WEEE obligation: sì
WEEE registration number: DE 28154958
WEEE brand according to EAR register: APERA Instruments (Europe) GmbH
WEEE type of equipment: Small equipment, that can be used in private households
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