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The UTD (Universal Tricorder Device), sometimes referred to as a PFD*, is a small, hand-held device often carried by Carter on off-world missions, designed to take readings similar to those normally taken by the MALP or UAV. Different models have been used which are capable of taking a variety of environmental readings including light, temperature, atmospheric chemicals or pollution, radiation, energy signatures, electricity, temporal fluctuations, and radio or RDF transmissions. The "Wormhole X-treme!" production used a similar tricorder-like device called a quatra-scanner.

*(Plot Forwarding Device)

Cross Reference: FRED, MALP, UAV, Wormhole X-treme!

Episode Reference: Prisoners, Message in a Bottle, Bane, Past and Present, The First Ones, Absolute Power, The Light, Red Sky, Between Two Fires, Menace, Shadow Play, Paradise Lost, Heroes, Resurrection, Lost City, Zero Hour, Morpheus, Uninvited, The Quest, Family Ties