2Dex™ Plug-and-Play Specifications

2Dex plug-and-play overview


 SensorDescriptionActive area
2X-2502Dex™ 2X-2502Dex™ standard sensor0.1 mm2

Note: 2X-251 sensors have not been made available as plug-and-play sensors, as the calibration process nullifies the benefit afforded by 2X-251 sensors. Calibrated 2X-251 sensors would provide no benefit to accuracy compared to the more affordable 2X-250 sensors offered here.

Magnetic field performance

Performance specifications of plug-and-play sensors match that of a Hall probe and teslameter—see teslameter specifications for measurement performance details.

Temperature compensation

 Included thermistorCompensation range
2X-250-FAYes—epoxied to the back of the sensor0 °C to 90 °C (273 K to 363 K)
2X-250-FTYes—thermistor separate from Hall sensor0 °C to 90 °C (273 K to 363 K)
2X-250-AI (coming soon)Yes—embedded inside sensor0 °C to 90 °C (273 K to 363 K)
2X-250-3D (coming soon)Yes—embedded inside sensor0 °C to 90 °C (273 K to 363 K)
2X-250-SH (coming soon)No—separate sensor required -272 °C to 125 °C (1 K to 402 K)

Temperature range

 Minimum temperatureMaximum temperature
FA Flat axial0 °C (273 K)90 °C (363 K)
FT Flat transverse0 °C (273 K)90 °C (363 K)
AI Axial insert (coming soon)0 °C (273 K)90 °C (363 K)
3D 3-axis (coming soon)0 °C (273 K)90 °C (363 K)
SH Extreme environment (coming soon)-272 °C (1 K)200 °C (473 K)

For cryogenic versions of the FA and FT packages, please contact Lake Shore Sales to request a customized solution.

Vacuum compatibility

FA, FT, AI, 3DHigh vacuum (down to 10-4 Pa)
SH (coming soon)Ultra-high vacuum (down to 10-10 Pa)

Inline connector

Insulation: Nylon 46 (290 °C maximum temperature)
Socket internal contacts: Gold over nickel* coated beryllium-copper
Pins: Brass alloy 360 (RoHS compliant)
Configuration: 8-pin (2 rows × 4 pins)
Solder: SAC305 lead-free solder

*Due to nickel content, these connectors should be kept away from sensitive magnetic field measurements and large magnetic fields


Single-axis sensors: TX connector only
3-axis sensors: Both TX and YZ connectors

Thermistor and x, y, and z sensor to connector pinout

Hall sensor

DesignatorSignalSensor wire colorCable wire color (single/X axis)Cable wire color (Y axis)Cable wire color (Z axis)
2I-Clear (copper)White (from orange pair)White (from green pair)White (from violet pair)
4V-GreenWhite (from red pair)White (from yellow pair)White (from blue pair)


DesignatorSignalSensor wire colorCable wire color
2T-/I-GreenWhite (from brown pair)
4V-White (from black pair)

Note: The thermistor (T) leads are in a 2-lead configuration up to the point of the sensor connector (designated with T+ and T-, though these leads are not polarized and may be switched). If connector removal is desired for direct attach to user equipment, protect the thermistor calibration by ensuring the length of 2-lead wire is not altered. Trimming or adding to the amount of wire in a 2-lead configuration will cause a shift in temperature readings.

Teslameter cable

Diameter4 mm (0.17 in)5.2 mm (0.21 in)
Bend radius40 mm (1.57 in)52 mm (2.05 in)
Operating temperature range-40 °C to 80 °C
Conductors4 twisted-pair8 twisted-pair
Cable shield100%-coverage foil
Cable insulationModified polyphenylene ether
Connector26-pin Mini-D with quick-release latch

Optional extension leads

Note: Two extension leads are required to extend 3-axis sensors (one for the X-axis sensor and thermistor connections, and another for the Y- and Z-axis sensors)

PurposeStandard extensions Blocking heat leak in cryogenic conditions
Wire configurationFour (4) twisted pairs Four (4) twisted pairs 
Wire material34 AWG copper with poly-nylon insulation 32 AWG phosphor-bronze with polyimide insulation 
Length75 cm (30 in) 75 cm (30 in) 
Maximum temperature130 °C (poly-nylon insulation) 220 °C (SAC305 solder) 

Connectors: Mate with sensor leads and teslameter cable assemblies (see inline connector specifications for details)

FA package specifications

FA active area (click to expand)

2Dex FA active area FT package specifications

FT active area (click to expand)

2Dex FT active area AI package specifications

AI active area (click to expand)

2Dex AI active areas 3D package specifications

3D active areas (click to expand)

2Dex 3D active areas