Profile: Coltraco Ltd. designs and manufactures a range of ultrasonic monitoring and preventative maintenance instrumentation. We are an ISO 9001 certified company. Our products are used in marine, fire protection, offshore petrochemical, industrial, process, defense, government and rail industries. Our main products include integrity tester, thickness gauges, and other portable instrumentation. Our portable liquid level indicator enables verification of the contents of the vessel's gaseous fire extinguishing systems filled with carbon-di-oxide and halon. It allows cylinders to be checked frequently without either dismantling the installation, or encountering the environmental problems of radioactive devices. Our portable ultrasonic watertight integrity test indicator is used for testing hatches, hatch covers, watertight compartments, storage tanks, bulkheads and doors.