MIDTJYSK INSTRUMENT SERVICE APS ( Calibration Engineering - Since 1982 ) is a provider of products and services such as data logging systems,cameras, astronomy,astrographs,helioscopes,reflectors, astronomical,refractors, astronomical,spectroscopes, astronomical,spectrographs, astronomical,astrolabes, danjon prism,theodolites, universal, astronomical (altazimuths),meridian circles, azimuthal circles,astronomical clocks,chronographs, astronomical, recording and printing,sextants,cameras, satellite,image enhancement and pattern recognition equipment, electronic, for observatories,telescopes, astronomical,torque analysers,ice detectors, road surface,metal detectors for buried metal,metal detectors and accessories, hobby and leisure use,tramp metal detection equipment, timber,tramp metal detectors, rubber and plastic industries,tramp metal detectors, textile industry,tramp metal detectors, chemical and pharmaceutical industries,tramp metal detectors, food industry,metal detectors for conveyor belts,detection systems, dust, electric,mine-detectors,detectors, fluids, electronic,leak detectors, ultrasonic,torque indicators, electronic,comparators, electronic,comparators, electrical,electronic noses,stroboscopes, electronic,thickness gauges, electric and electronic,gauges, electronic, precision,gauges, electrical,densimeters, gamma ray,combustion efficiency meters,photosedimentometers, electric and electronic,micrometers, electrical and electronic,smoke density indicators, alarms and recorders,warning tape, magnetised, for underground cable and installations detection and location,underground warning tape, cable and pipe locating instruments.