# digital thermometer - cheap small fast wide range?

W

#### wle

Jan 1, 1970
0
is there such a thing as
a digital thermometer - that is cheap small fast and wide range?

what would be perfect is a regular medical type -
if it would ONLY read from 0F to 200F.

is there such a thing?

specs:

cost:
< $20 dimensions: long form factor : up to ball-point pen size, or short form factor: diameter of a quarter, 3/8 thick accuracy: +/- 2F range: -40F to 300F nice 0F to 140F necessary speed: reads air temp within 10 sec this is the least important spec, it can take up to 60 sec if everything else is within specs. also i would like it to be on all the time, not have to press a button. battery life should be one year or more. wle. R #### Robert Baer Jan 1, 1970 0 wle said: is there such a thing as a digital thermometer - that is cheap small fast and wide range? what would be perfect is a regular medical type - if it would ONLY read from 0F to 200F. is there such a thing? specs: cost: <$20

dimensions:
long form factor : up to ball-point pen size,
or short form factor: diameter of a quarter, 3/8 thick

accuracy:
+/- 2F

range:
-40F to 300F nice
0F to 140F necessary

speed:
reads air temp within 10 sec
this is the least important spec, it can take up to 60 sec
if everything else is within specs.

also i would like it to be on all the time, not have to press
a button.

battery life should be one year or more.

wle.
National semiconductor makes ICs, one calibrated in Centigrade, one
in Farenheit; both are capable of erpeatable and accurate measurements
to 185C.

J

#### James T. White

Jan 1, 1970
0
wle said:
is there such a thing as
a digital thermometer - that is cheap small fast and wide range?

I don't know if it meets all your specs but have you considered an electronic
cooking/meat thermometer from your local grocery store? The one I have reads
from -45C to +200C, cost about \$15 and has a 4.5" stainless steel probe. The

Hope this helps.

W

Jan 1, 1970
0
oh yeah!
thanks.

wle.

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