Gas detection3
Respiratory protection4
Technical rescue9
Firefighting4
Safety & environment4
Personal protective equipment2
MSA Observer i — ultrasonic gas leak detector
The MSA Observer i is an omnidirectional acoustic detector for pressurized gas leaks, using Gassonic ultrasonic technology. It detects leaks instantly — even where classic gas-concentration detection is ineffective or dependent on ventilation. A detection range of up to 28 m reduces the number of sensors needed. An artificial neural network (ANN) distinguishes a real leak from background noise, eliminating false alarms. SafeTech selects, installs and services ultrasonic detection systems.
The MSA Observer i is an omnidirectional acoustic detector for pressurized gas leaks, using Gassonic ultrasonic technology. It detects leaks instantly — even where classic gas-concentration detection is ineffective or dependent on ventilation. A detection range of up to 28 m reduces the number of sensors needed. An artificial neural network (ANN) distinguishes a real leak from background noise, eliminating false alarms. SafeTech selects, installs and services ultrasonic detection systems.
Key features
- Omnidirectional acoustic detection (Gassonic technology) — detects a leak regardless of wind direction and gas dispersion.
- Artificial neural network (ANN) distinguishes leak sound from background noise — fewer false alarms.
- No field training required — fully ready for operation right after installation.
- Detects leaks starting from 2 bar pressure — fast response to small leaks.
- Patented Senssonic self-test function — full fail-safe operation.
- Maintenance-free calibration and test — performed by a single person.
- Detection range up to 28 m — fewer sensors needed on the same installation.
Technical specification
| Parameter | Value |
|---|---|
| Type | ultrasonic (acoustic) gas leak detector |
| Detection range | up to 28 m |
| Frequency range | from 12 kHz (wider than older generations >25 kHz) |
| Response time | < 1 s (speed of sound) |
| Housing | AISI 316 stainless steel, IP66/Type 4X |
| Power supply | 15–36 VDC, 250 mA max. (24 VDC, 170 mA nominal) |
| Operating temperature | −40 °C to +60 °C |
| Relay | 8 A @ 250 VAC |
| Warranty | 2 years |
Applications
Compressor stations, pressurized installations, pipelines and industrial nodes in open areas where ventilation or wind direction hinder classic gas-concentration detection.
Frequently asked questions (FAQ)
How does an ultrasonic detector work?
It listens for the characteristic sound (ultrasound) generated by gas escaping under pressure — it reacts to the fact of the leak itself, not its dispersed concentration in the air, so it responds instantly and independently of wind.
Does it require calibration with a reference gas like a standard detector?
Not in that sense — the self-test and function check (Senssonic) is performed by a single person without calibration gas, which greatly simplifies servicing.
Does SafeTech design such systems?
Yes — we select sensor placement, install and service ultrasonic detection systems in industrial installations throughout Poland.
Brand and service
MSA Safety — sales, selection, design and service of systems by SafeTech (Suchy Dwór near Gdynia).
Why SafeTech
- 23 years of experience in gas detection (the company has operated since 2003).
- Authorized distributor and authorized service station (including Honeywell).
- In-house service, calibration, certification and adjustment in Suchy Dwór near Gdynia — service throughout Poland.
- Training and technical support (SafeTech Safety Academy).
Availability and service — Gdynia and the Tricity
MSA Observer i — ultrasonic gas leak detector — sales, selection, calibration and service in Gdynia (Suchy Dwór, on the border of Gdynia and the Kosakowo municipality). We serve the Tricity (Gdańsk, Sopot, Gdynia), Rumia, Reda, Wejherowo, the Pomeranian Voivodeship and all of Poland. Ask about a quote and availability.
