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Counter/Timer Kits

ABRA has a vast inventory of Counter/Timer electronic kits for teachers, students and hobbyists. If you are a teacher looking for the appropriate kits for your classroom, call our knowledgeable staff for quantity prices and recommendations.
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AK-260-A DIY Calculator Soldering Module
US$31.80

This is a DIY calculator KIT soldering module which can perform additions, subtractions, multiplications and divisions.
Features:1) It uses through hole components and is easy to solder.2) It does not require a computer; the calculator kit is pre-programmed.3) It is powered by a single CR2032 battery and can be carried anywhere without being tethered.4) It can be turned on instantly, at any time, and is easy to use.5) When not in use for a long time, it will automatically go to sleep mode, saving energy.

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AK-177 Touch Delay TDL-555 Timer with LEDs – Educational D.I.Y. Kit
US$5.41
This is a DIY kit that comes with all the components you need to assemble and solder a touch-triggered 555 timer. The circuit board is a single-sided through-hole design meaning you must solder only on one side of the board. The assembly is easy for average electronic gurus. All you need to have is basic soldering tools and a 5vdc power supply.
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AK-260 Educational DIY Calculator Kit with Acrylic Casing and Buttons
US$31.80
This is a great DIY calculator kit for beginners and electronics enthusiasts. It is easy to install, helps learners to improve their soldering skills and has all the features you would expect from a basic calculator!
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1526-ADA "Three Fives" Discrete 555 Timer Kit - v2.0
US$72.71
The "Three Fives" Discrete 555 Timer kit from Evil Mad Scientist Laboratories is a faithful and functional transistor-scale replica of the classic NE555 timer integrated circuit, one of the most classic, popular, and all-around useful chips of all time. The Three Fives kit is sold as an easy-to-build soldering kit [?]. It includes the circuit board, resistors, and transistors that make up the electrical circuit as well as printed assembly instructions. The kit also comes complete with the "IC Leg" stand, and 8 color coded thumbscrew terminal posts.
Delivery within 2-3 weeks
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AK-95 D.I.Y 4 Bit Digital Clock Kit
US$11.13
This kit is a simple soldering practice board, the goal is to build a digital clock! Using the Abra Kits guideline we have streamlined the manual to offer at most a schematic diagram, a parts list and basic soldering guide. This makes our manual ideal for classrooms who want no non-sense straight forward guide. This clock has two alarms and on digital clock, when powered off the settings will be reset.
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AK-40 D.I.Y Digital Red LED Clock KIT
US$17.24
Are you curious in learning how alarm clocks work, do you want to build your own LED digital clock and brag to your friends? You can do just that with this D.I.Y digital led clock kit. The only pre-requirements is that you have some soldering knowledge. Build this LED clock in less than 30 minutes and impress your peers with your marvelous creation.
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MK128 Velleman Kitchen Timer Kit
MK128 Velleman Kitchen Timer Kit
US$27.93

This kit times anywhere from 1 minute to 1 hour with single button operation. Clear 16-led readout. Audible and visible alarm with discrete pre-alarm. Auto power-off. Attractive designer enclosure.

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