Cygnus Hatch Sure

Ultrasonic Door Tightness Detector

This ultrasonic tightness detector is lightweight and portable and is used to locate leaks and identify seal failures in any closing appliances or compartments. This detector can be used across many applications, from testing the weather tightness of doors on marine vessels and watertight doors to inspecting the airtightness of windows on offshore oil & gas platforms and transportation vehicles.  

Key Features of the Cygnus Hatch Sure ultrasonic door tightness detector includes:

  • Used for inspecting watertight and weathertight seals of doors or any other closing appliances
  • Able to pinpoint the exact location of leaks and help assess seal degradation
  • Has 6 adjustable power levels so that the unit can be used in various sizes of areas
  • Easy and quick to operate, requiring minimal training
  • Inspections can be carried out without having to clear the area
  • Lightweight and supplied in a portable rucksack-style carry case
  • Digital calibration controls
  • OH (Open Hatch) value and sound level in dB (Decibels) are simultaneously displayed
  • Receiver is supplied with neck and waist straps for hands-free operation
  • Transmitter supplied with a sling and 4 anchor points allowing it to be lowered into position
  • ABS type approved and accepted by P&I clubs.

Evaluate watertight integrity of seals and doors using Ultrasonic Testing

Ultrasonic testing provides a simple and reliable method of checking seals of any closing appliances or structures.

The Cygnus Hatch Sure system consists of a battery powered transmitter, lightweight receiver and telescopic extension inspection microphones. The powerful transmitter with 19 ultrasound emitters distributes an omni-directional sound field which uniformly fills the areas under test and the receiver detects any ultrasound that gets through any gaps in the closed door or compartment and displays the sound energy level, identifying the location of leaks or damaged seals quickly and reliably.

Hatch Sure Receiver

Size 110 x 185 x 45 mm
Weight 500 g (inc. batteries)
Power 9v PP3 battery – 2 x MaxE
Rechargeable batteries supplied
Battery Life 4 – 5 hrs continuous with MaxE rechargeable battery
8 – 9 hrs continuous with Alkaline battery
Protection IP65 (IP66 in soft-pouch)
Frequency 40.000 KHz, +/- 200 Hz Bandwidth
Enclosure ABS plastic with orange shock-absorbing outer boot
Outdoor all weather soft-pouch with mounted belt strap
Temperature Range Operating: -20oC to 50oC
Storage: -10oC to 60oC
Warranty 3 years

Hatch Sure Inspection Microphone

Size 240 x 12 x 15 mm (with rubber sleeve fitted)
Warranty 6 months
Quantity 2 x flexible inspection microphones supplied

Hatch Sure Telescopic Extension

Size Extended length: 1.215 m
Collapsed length: 0.4 m
Weight 300 g
1 year

Hatch Sure Transmitter

Size 120 x 150 x 90 mm
Weight 680 g (inc. batteries)
Power 12 x Rechargeable MaxE 2100 mAh supplied with kit (alternatively 6 x AA batteries)
External 12-24 v DC power input socket (1 amp)
Battery Life 4 hours with 2100 mAh MaxE batteries
Battery Charger A 6 cell charger is supplied
100 – 240 v AC 50-60 Hz supply
Charge time is approx. 3 hours
Protection IP40 in soft-pouch with emitters exposed (normal use)
IP42 in soft-pouch with cover flat secured (storage)
Frequency 40.000 kHz, +/- 80 Hz Bandwidth Frequency modulated
Elements 19 x 16 mm diameter 40 KHz ultrasound emitters
Max. Power 130 dB (SPL)
Output 6 selectable pre-set power levels – full power
5 selectable lower outputs in 11 dB steps
Enclosure ABS plastic
Padded soft-pouch with protective weather cover and 4 points for attaching rope for lowering into holds
Temperature Range Operating: -20oC to 50oC
Storage: -10oC to 60oC
Compliance CE, BS EN 60945:2002 (maritime navigation and radio communication equipment and systems – general requirements – methods of testing and required test results)
Environment CE, UKCA, RoHS
Warranty 3 years


Hatch Sure receiver with protective case, neck and waist strap; telescopic extension and cable; two flexible inspection microphones; neck band headphones; Hatch Sure transmitter with protective case and carry strap; rechargeable batteries for the transmitter; rechargeable batteries for the receiver; charger for the rechargeable batteries; operation manual; external DC power lead for the transmitter and; emergency microphone cable.

Weight 5 kg

4 reviews for Cygnus Hatch Sure

Wagner C.

Sep 30, 2015 11:30 AM

I’m pleased to inform you that this month I completed the one hundred and twentieth vessels inspection and I’m entirely satisfied with the Cygnus Hatch Sure equipment.

Ammar M.

Apr 20, 2017 11:29 AM

Item was used with total satisfaction, we shall keep in touch for further purchases soon.

Orçun Ç.

Dec 26, 2017 11:31 AM

Device is working very well, we have used many devices but this one is far ahead from others.

Tony D.

Mar 31, 2021 11:32 AM

A super piece of kit, and our go to detector when performing yacht hatch and door ultrasonic leak detection testing.

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