FP Series probe specifications

Sensor type

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

Temperature compensation

 Built-in thermistorTemperature range
StandardYes0 °C to 90 °C
Flexible-thinYes0 °C to 90 °C
CryogenicNo1 K to 400 K using external temperature data

Stem material

StandardAnodized aluminum tube with a 4 mm square cross sectionAnodized aluminum tube with a 1.55 mm maximum thickness by 4.57 ±0.13 mm rectangular cross sectionAnodized aluminum tube with a 2 mm diameter circular cross section
Flexible-thinNAFR-4 PCB 1.14 mm maximum thickness by 3.53 mm NA
CryogenicNA316 stainless steel tube with 4.75 +0.15/-0.11 mm diameter circular cross section316 stainless steel tube with 4.75 +0.15/-0.11 mm diameter circular cross section

Stem length

Distance from tip of sensor to beginning of handle

Stem operating temperature range

Standard0 °C to 90 °C0 °C to 90 °C0 °C to 90 °C
Flexible-thinNA0 °C to 90 °CNA
CryogenicNA1.5 K to 363 K1.5 K to 363 K


 Handheld (default)Mountable
Length, including strain relief138 mm110 mm
Diameter13 mmNA
ThicknessNA10 mm
WidthNA12 mm
MaterialABS/polycarbonate blend with anodized aluminum grip Machined aluminum with brass screws. Mountable to fixture using customer supplied M2 screws with 3.8 mm diameter socket head and 2 mm diameter alignment pins
Operating temperature range0 °C to 80 °C0 °C to 80 °C


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
FP Series probe active areas