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The conditions for purchases, deliveries and returns are described in our Terms and Conditions.

The package includes:

  • ISFET probe consisting of the transmitter, ring and the ConeFET replaceable sensor part.
  • Charger with USB cable
  • Tooth brush for cleaning purposes

You would need to gather yourself (or purchase separately in the shop):

  • Mobile device (Bluetooth5.0 or higher; Android, HarmonyOS, iOS)
  • Adapter for USB charger to connect USB cable of charger to socket
  • Calibration pH buffers
  • Demineralized water
  • Eventually some labware like beakers and tissues

PS See our manual how to unpack and get started for your pH measurements. 

ConeFET pH Probe

  • Article number: 3380-100
  • Probe with 10mm diameter barrel and cone shaped tip for general purposes
  • Total length of probe is 224 mm; length of just the replaceable (c.q. immersible) sensor part is 128 mm.
  • ISFET (Ion Sensitive Field Effect Transistor) pH sensor: glass-free, robust and dry storage capabilities
  • Gel-filled reference chamber for stable and accurate pH measurements
  • ATC, Automatic Temperature Compensation for the calibration procedure thanks to integrated NTC temperature sensor in the tip
  • Wireless chargeable battery (charger and USB cable included; charger adapter not included). Charging will need 2 hours for a 2-3 weeks operation time
  • Compatible to the free Sentron app for Android, HarmonyOs and iOS: app for intuitive calibration, acquisition, visualization and export of measurement data of multiple probes at the same time
  • BLE (Bluetooth Low Energy) wireless connection to mobile device; flexibility to move away up to 50-meters while your mobile device remains at one location
  • Temporary data storage in the probe the when mobile device is disconnected or out of reach
  • RGB LED for status update
  • Durable: the replaceable sensor part is easily interchangeable from the probe by plug and screw
  • IP67 dust and waterproof

See the specification table in our wireless ISFET pH probe manual for all specifications.

Probably also good to add


General purpose cone shaped probe for wireless, durable, non-glass pH measurements.

Plug and screw the two parts together, download the Sentron app at your mobile device and get guided through the calibration and measurement settings (mobile device and buffers not included). Monitoring pH was never that easy!

Category: SKU: N/A

Additional information


Conefet, Cupfet, Lancefet, Lancefet with handle, Microfet