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800 Series Acoustic Pingers

Make significant savings in vessel time with Online's versatile acoustic pig locators

Online’s 800 series acoustic pingers enable quick and accurate locating of a stalled pig in a liquid line, leading to significant savings in vessel time and therefore costs.

The pingers are highly configurable and can be custom-made with different ping rates and frequencies as per the client’s specifications. This allows for differentiation between pigs within a pig train and can also be used to extend the battery life.

The 800 series pingers are activated once immersed in fluid; thus allowing them to be loaded months in advance of the flooding operation. The pingers are capable of sending acoustic transmissions over distances of several kilometres, dependent upon unit configuration, mounting arrangement and environmental conditions.

800 Series

  • Designed for pipe sizes of 8 inches and upwards
  • Can be configured with a pressure switch that activates once the external pressure exceeds a set threshold value meaning the pinger can be installed inside a wet pipeline at atmospheric pressure in advance of the required activation date
  • Can be interfaced with an external piece of equipment such as an Online Smart Gauge Plate to confirm the integrity of a subsea pipeline or to transmit pressure readings over long range using Online's 6000 subsea logger
  • Rated to 450bar allowing it to be used in high pressure applications


Model No. 800 Series
Use in pipeline diameter >200mm (8")
Battery Capacity 16x Alkaline AA Cells
Typical Battery Life 30 Days
Acoustic Output Power 20W ±3dB
Operating Frequency 24-40kHz (Low frequency option available)
Operating Temperature Rating -2°C to +54°C (+28°F to +129°F)
External Pressure Rating 4,500m (14,764ft)/450bar (6526Psi)
Dimensions & Weight  
Length 350mm (13.8")
Diameter 73mm (2.9")
Weight in air 4.1kgs (9lbs)