Isodyne relay
An isodyne relay was a component of 24th century Starfleet tricorders.

On AR-558 in 2375, Ezri Dax suggested cross linking the isodyne and optronic relays of a tricorder to detect the Jem'Hadar's "Houdini" mines while they were in subspace.  was impressed by her suggestion. ()

While investigating Species 8472's recreation of  in 2375, Commander Chakotay claimed to  that the isodyne relays in his tricorder were malfunctioning, causing it to register bamboo as maple trees. ()

de:Isodyne-Relais
Technology