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About Mobile Contact Angle Meter – SurfaSpector

The SITA SurfaSpector is an easy to use non-destructive, mobile contact angle meter for testing wettability and cleanliness on a range of materials including plastic, metal, ceramic and glass surfaces.

Supplied in a carry case, this hand-held instrument is an ideal industrial tool for at line measurements on a range of applications:

  • quality assurance after parts cleaning process
  • wettability inspection
  • testing of surface activation (e.g. after plasma/corona treatment).

The instrument works on the contact angle method where a known volume drop of water is precisely placed on the surface of the material by an automatic dosing unit on the sensor head.  Using a high resolution camera the drop shape is determined and the contact angle calculated and logged.  Results are viewed on the 5″ touchscreen operating unit which can also be transferred to PC for advanced measurement analysis and reporting via the optional SurfaceLog software.

Features & Benefits

  • SITA SurfaSpector Mobile Contact Angle Meter applicationAutomated measuring procedure including drop placement, drop detection and direct determination of the contact angle.
  • Versatile sensor head for measuring parts of various geometries
  • Simple operation via touchscreen
  • Mobile use without needing a PC directly during the measurement process
  • Limit value monitoring in measuring profiles – ideal use for various applications
  • Optional PC software SITA SurfaceLog for advanced measurement analysis and reporting.


  • SITA SurfaSpector Mobile Contact Angle Meter with Standquality assurance after parts cleaning process
  • wettability inspection
  • testing of surface activation (e.g. after plasma/corona treatment)


Contact Angle
Range 5° to 175°
Resolution 0.1°
Liquid pure water, refillable, 5ml for 5,000 measurements
Optical determination of the contact angle of a lying drop
Drop volume 1μl
Minimum sample surface area 5 x 5mm
Main unit 5″ TFT display 800 x 480 pixel, capacitive touch, intuitive interface
Sensor Measurement start button, LED for optical feedback
Power supply/interfaces
Li-ion battery 2 x 6,400 mAh, min. measurement time 6 hours
Power plug 12 V, 2.5A (max. 17 V, 3A)
Interfaces, memory, dimensions and weight
USB USB-C (data transfer, USB-C power delivery)
Storage 10 GByte
Dimensions (h x w x d) Main unit: 80 x 210 x 130 mm / 1.1kg
Sensor: 117 x 50 x 82mm / 330g
Calibration standard, stand

All Downloads

Filename Size Download
SITA SurfaSpector Product Brochure 0.43MB Download

Ordering Information

Part Number Description
G90-000010 SurfaSpector Portable Contact Angle Meter
G02-000016 SurfaceLog Software for Windows

SITA SurfaSpector Mobile Contact Angle Meter in CaseScope of Delivery: instrument, operating instructions, carrying case, mains adapter, USB-cable, 2 calibration standards, refill set, 2 projection surfaces for replacing, calibration certificate.

  • Last updated: June 2024
  • Version: 1.0

Statements, technical information and recommendations contained herein are based on tests we believe to be reliable but they are not to be construed in any manner as warrantees expressed or implied. The user shall determine the suitability of the product for his intended use and the user assumes all risk and liability whatsoever in connection therewith.