Scientific apparatus, namely, ultrasonic compressed air leak detectors and gas leak detectors; Surveying instruments; Photographic apparatus, namely, infrared cameras and ultrasonic cameras; Signaling apparatus in the nature of sensing and signaling devices for detection of defaults on compressed air and pressurized gas networks; Checking in the nature of technical testing and checking apparatus and instruments for testing and checking the temperature, pressure, quantity and concentration of gas and air; Remote monitoring apparatus for monitoring air quality; cameras, ultrasonic detectors for leak detection and classification in compressed air and gas systems, gas and air leaks detection alarms

'air':6,39,69,75,87,93 'alarm':96 'apparatus':2,16,24,53,72 'camera':19,22,77 'check':44,52,59 'classif':84 'compress':5,38,86 'concentr':65 'default':36 'detect':34,82,95 'detector':8,12,79 'devic':32 'gas':10,42,67,89,91 'infrar':18 'instrument':14,55 'leak':7,11,81,94 'monitor':71,74 'name':3,17 'natur':27,47 'network':43 'photograph':15 'pressur':41,62 'qualiti':76 'quantiti':63 'remot':70 'scientif':1 'sens':29 'signal':23,31 'survey':13 'system':90 'technic':49 'temperatur':61 'test':50,57 'ultrason':4,21,78

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