Texas Instruments TI-1850 Visor Kit

Date of introduction:  1981 Display technology:  LCD
New price:   Display size:  8
Size:  4.6" x 2.6" x 0.35"
 116 x 66 x 9 mm3
Weight:  1.9 ounces, 54 grams Serial No:  
Batteries:  2*LR43  Date of manufacture:  wk 48 year 1981
AC-Adapter:   Origin of manufacture:  USA
Precision:  8 Integrated circuits:  TP0311
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner
    Download manuals:   (US: 3.6M Bytes)
  (US: 0.8M Bytes)

TI-1850_1.jpg (56028 Byte)The TI-1850 Visor Kit was introduced to track the performance of the car. The kit includes 5 pieces to clip securely to the car's visor: 

A calculator based on the TI-1001
A clip-on tire gauge measures 0 to 50 p.s.i.
A mechanical pencil
A Auto Record pad to log date, dollar amount, mileage...
A black wallet

About one year later an enhanced calculator for cars was introduced with the TI-2001 GTI.

Nevertheless continued Texas Instruments to manufacture the TI-1850 and changed the overall design. Don't miss the restyled TI-1850.


Find here an excerpt from the Texas Instruments Incorporated leaflet CL-199J dated 1981:

TI-1850 Visor Kit

The fast, easy way to track your car's performance and make the most of your travel dollars.

Here in one convenient 5-piece kit that clips securely to your car’s visor is everything you need to make auto travel more efficient. 
Full-function calculator to compute travel mileage, miles per gallon (m.p.g.), travel expenses, etc. 
There’s a clip-on tire gauge. Measures 0 to 50 pounds per square inch (p.s.i.). Proper air levels mean maximum mileage. 

Write it all down with a stylish ball-point pen on the handy Auto Record Pad. Pages included to log in date, dollar amount, mileage, gas bought and computed m.p.g., as well as periodic maintenance: oil change and filter, lube, tune-up.

© Texas Instruments, 1981

The TI-1850 Visor Kit is featured in the Texas Instruments Incorporated leaflet CL-199M dated 1983.


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© Joerg Woerner, January 3, 2002. No reprints without written permission.