Electrolytic tilt sensors are designed to measure pitch and roll movements in a variety of applications. Electrolytic level sensors are electrically resistance potentiometers operating at relatively low frequencies and come in different packages and ranges. Electrolytic tilt sensors can be used under conditions of extreme temperature, humidity and shock for high accuracy measurement. However, they should not be exposed to DC currents which would cause an electroplating action. As non-signal conditioned sensing elements, there are single and dual axis versions of the electrolytic tilt sensors. These sensing elements can find applications in Aerospace, Construction lasers, Construction equipment, Camera systems, Industrial machine tools, Geophysical tilt meters, Gyroscopes, Oceanographic, Weapon aiming and Military.Single and dual axis electrolytic tilt sensors from The Fredericks Company are available in full scale ranges from ±0.25 degrees (15 arcmin) to ±85 degrees (10800 arcmin), in glass, ceramic and patented metal constructions. Designed and engineered to outperform MEMS-based technology for a wide range of tilt measurement applications, Fredericks’ entire line of patented, precise and LOW COST electrolytic tilt sensors are offer high repeatability and resolution with very low drift. Tilt sensor output can be read by a PLC that has the ability to read analogue or serial RS-232 / RS-485 output. The TrueTILT™ Narrow Angle has an attractive price and high sensitive output. The Glass Narrow Angle range are used for applications requiring the highest levels of repeatability and resolution over small angles. High precision glass, null sensing sensors are encapsulated in lightweight, non-magnetic housings with mounting screws for quick, easy installation into users’ instrumentation. The glass single / dual axis wide range electrolytic tilt sensors have afford price, high performance, quality, exceptional reliability and resolution. Geared towards the OEM marketplace, these tilt sensors feature a PC board mountable design, no moving parts, and a symmetrical pin design.For more information, CONTACT US now with your application details.
ProductsRangeResolutionNull repeatabilityOperating temperature
TrueTILT Narrow Angle±2°, ±3°1 arc second≤ 5 arc seconds-20 ℃ to +50 ℃
Glass Narrow Angle±3° to ±5°0.05-1 arc seconds0.5-5 arc seconds-20 ℃ to +50 ℃
TrueTILT Mid-Range±25°1 arc second≤ 18 arc seconds-40 ℃ to +85 ℃
Glass Mid-Range±9° to ±12°1-12 arc seconds2-60 arc seconds-40 ℃ to +80 ℃
TrueTILT Dual Axis Wide Range±25° to ±60°12 arc seconds0.05-0.1°-40 ℃ to +85 ℃
Glass Wide Range±25° to ±70°10 arc seconds0.2 arc seconds-40 ℃ to +85 ℃
Micro-Arc180°12 arc seconds0.05°-20 ℃ to +100 ℃

A single axis electrolytic tilt sensor has a glass or ceramic cavity construction with an electrically conductive fluid (electrolyte) filled and sealed inside. The conductivity between a common, positive and negative electrode is proportional to the length of electrode immersed in the fluid as below illustrated.

pressure sensor
pressure sensor

When the sensor rotates in its sensitive axis, the amount of surface area submerged within the fluid will increase for one electrode and decrease for the other, therefore, creating a radio in the output that is proportional to tilt angle.

pressure sensor

Dual-axis (X & Y) sensors exhibit the same fluid characteristics as single-axis devices but two sets of electrodes are required for the complexity of interaction between the axes. A dual axis titls sensor platform consists of a cylindrical glass envelop and 5 pins that act respectively as the common, positive and negative electrodes for X-Y axis.

pressure sensor

Find out how electrolytic tilt sensor works, please download the principle of tilt sensor operation.


  • Construction Laser Instruments and Transits
  • Aircraft Avionics
  • Geophysical and Structural Monitoring
  • Machine Tool/ Platform Levelling
  • Medical Positioning and Monitoring, Medical Instruments
  • Off Road and Construction Vehicles
  • Navigational and GPS Compensation
  • Robotic and Automotive Applications
  • Oceanographic Instrumentation

For more information, CONTACT US now with your application details.

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