+/- 25V Voltage logger sensor NUL-251

±25V Voltage logger sensor


This sensor measures voltages across various resistive, capacitive and inductive components, as well as those of photovoltaic cells, batteries and power supplies. This sensor can also be used to measure electrode potentials and to investigate the charging and discharging of capacitors.

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This sensor can be used to measure low voltage AC and DC circuits. With its 4 mm plugs, it can easily be connected into electric circuits.

Distributors in the United States, Canada, and other countries.
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temperature under 1 temperature under 2


  • Used in the fields of Physics, Electronics, Chemistry, Biology, etc.
  • Red (positive probe) and black (negative probe) wires with 4 mm plugs connected directly to the sensor’s body.
  • The sensor is pre-calibrated at the factory.
  • Experiment duration: 50 milliseconds to 31 days.


Sensor Guide and Example labs


Sensor Guide and Example Labs

pdf   ±25V Voltage sensor User Guide
What is included with the sensor, Sensor Specifications, Videos and experiment examples, Technical background, Maintenance and storage, and Warranty.


*The following experiments include instructions for the Voltage sensor (NUL-201) but they can also be used with the ±25V Voltage sensor (NUL-251).

    Ohm’s Law P-10
Physics Experiment (includes also current logger sensor)
    Circuits and Series Resistance

Physics Experiment (includes also current logger sensor)
    Producing Electricity C-1
Chemistry Experiment

Sensor Requirements

Hardware (see all)


USB-200 requirements
WIFI-200 requirements
BAT-200 requirements

Software (see all)

computer requirements

Multiple logger sensors can be used together!

Multi requirements 3

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Sample Data


Technical Support

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