BTT Micro Probe V2.0 - 3D Printer Auto Leveling Sensor

Main features:

• Ultra small, fits into more places.
• Lighteweight desing.
• Easy installation.
• Compatible with wide range of FDM printers.
• High precision and reliability.

Specifications:

• Name: MicroProbe.
• Total weight: 6g.
• Voltage: 5V.
• Standard-By current: 19mA.
• Operating Current: 350mA.
• Cable Length: 1.5m.
• Wiring: 5-pin, 1.25mm pitch.
• Working Chamber Temperature: ≤60ºC Ambient.
• Accuracy:
  0.001 Standard Deviation @24ºC Ambient, 60ºC Bed.
  0.003 Standard Deviation @60ºC Ambient, 100ºC Bed.

More info here.