Free shipping in the US! - 100 day return policy

The Pocket Scientist - Wallet size ruler and physical constant reference
Pocket wallet science engineering ruler card
Pocket Scientist wallet science engineering ruler card
Purse sized ruler for scientists and engineers

The Pocket Scientist - Wallet size ruler and physical constant reference

Regular price $11.50 Sale

Carry your passion for science in your pocket.

This laser-cut and laser-engraved 0.5 mm enamel-coated stainless steel reference card engineering ruler is designed for passionate scientists and engineers who may find themselves needing a quick straight edge, wondering what's next to Technetium in the Periodic Table, pausing to double-check the 6th significant figure in the speed of light or who somehow forgot the 42nd digit of pi. Keep it in your wallet at all times so you're always ready to do some science!

Features:

1) Imperial and metric straight-edge to 85 mm

2) Side reference with 10-mil resolution (250 um)

3) Arc and circle drawing tools to every 1/8th inch or 5 mm radius increment

4) Full periodic table with atomic number reference in each period (row)

5) Phone stand slot (insert another sturdy credit card)

6) 12 physical constants from physics and chemistry

7) 14 fundamental equations in the sciences 

8) Temperature, mass and pressure conversions plus trigonometry quick-reference

9) 42 digits of Pi

10) QR code which will link to rotating monthly Easter-eggs on a hidden GLG page

11) Fits any normal credit card or ID holder

12) TSA compliant and more compact than a standard 6" engineering scale ruler

Makes for a perfect unique gift for scientists or engineers starting school or at graduation!

Arrives in 5-10 days in the USA, 7-14 days internationally

Customer Reviews

5 Based on 6 Reviews
5 ★
100% 
6
4 ★
0% 
0
3 ★
0% 
0
2 ★
0% 
0
1 ★
0% 
0
Write a Review

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
Y
11/13/2019
YeJin
South Korea

Great!!

I chose this item because I like the back part. There are many formulas and constants on the back!! I always carry this with me with the 'The Pocket Chemist - Wallet Sized Chemistry Stencil, Ruler and Unit conversion Reference'.

Y
11/13/2019
YeJin
South Korea South Korea

Great!!

I chose this item because I like the back part. There are many formulas and constants on the back!! I always carry this with me with the 'The Pocket Chemist - Wallet Sized Chemistry Stencil, Ruler and Unit conversion Reference'.

J
08/02/2019
John

Very handy when you can't be tied to your desk or a device

This is unique and excellent tool. I am a general chemistry lab instructor and I'm always getting asked question that require me to go look up basic information. This will live in my lab coat pocket so I will allways have it handy as I move around the lab from student to student.

BB
07/07/2019
Bryan B.
United States United States

THE Best

Useful, precise and giving pieces!

JF
06/03/2019
Jeremy F.

What a Great Handy Wallet Tool!

I am a nerd and a field scientist, and sometime you need a quick reference for random things, but also a handy drawing and measuring tool. With it's ruler in both metric and US as well as protractor curve, this has already made my life a little easier in the field. it's a great tool that is my wallets new best friend. I am very happy I bought this!!

06/15/2019
Genius Lab Gear

So glad you love it, Jeremy! We kept a few for ourselves that is never out of arm's reach. Make sure to tell others out in the field!