Indoor/outdoor thermometer with remote sensing unit

Communications: electrical – Continuously variable indicating – Condition responsive

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Details

374109, 374120, G01K 306, G08B 1324

Patent

active

046085653

ABSTRACT:
A thermometer includes a temperature transmitting unit and a temperature receiving unit which are disposed on opposite sides of an exterior wall or window. An outdoor temperature sensor is connected to the transmitting unit for modulating the transmitted radio waves. The transmitting unit and receiver unit communicate with each other via radio waves so that they are not in physical contact with each other.

REFERENCES:
patent: 3326045 (1967-06-01), Vrsaljko
patent: 3541450 (1970-11-01), Paine
patent: 3582921 (1971-06-01), Krieger
patent: 4106340 (1978-08-01), Hamid
patent: 4140999 (1979-02-01), Conway
patent: 4184159 (1980-01-01), Andersson
patent: 4274475 (1981-06-01), Rall et al.
patent: 4298947 (1981-11-01), Tamura et al.
patent: 4403218 (1983-09-01), Beal et al.
patent: 4406550 (1983-09-01), Gray
patent: 4455096 (1984-06-01), Brandstedt

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