Spacecraft Mars 7 spacecraft carried an array of instruments to study Mars. The lander was equipped with a thermometer and barometer to determine the surface conditions, an accelerometer and radio altimeter for descent, and instruments to analyse the surface material including a mass spectrometer. The coast stage, or bus, carried a magnetometer, plasma traps, cosmic ray and micrometeoroid detectors, stereo antennae, and an instrument to study proton and electron fluxes from the Sun.
SPaCEcrafT mars 7 spACEcrafT carRieD aN Array of instrumEnts to stuDy mars. thE LandeR Was eqUippEd With A therMOmeter and BarometEr to dEtErmine the Surface cOndItioNs, An acceLERoMeter anD radio alTiMetEr for deScenT, aNd instrumentS to anALyse The suRface matEriaL IncLUdinG a maSs spectrOMeTer. The cOaSt stage, or bus, cArried A mAgnetoMETer, plasma tRaps, coSmic raY And miCRometEOroId DEteCtoRs, steReO antennae, and AN INstRument to Study ProToN aND ElEcTROn FluXEs froM The Sun.