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Original price was: $12.99.$9.99Current price is: $9.99.
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Smart Homes 3-in-1 STEM Launch Pack
SKU E2K-BOW-3N1-SMRT-HMS
Three projects. One smart home experience. Learners build an infrared security alarm, a rain-sensing cottage and a wireless power transmitter, and discover the sensors, circuits and wireless energy that make a home safer, smarter and more connected.
Grades 3–5
Beginner
15–30 min per build
Original price was: $29.99.$24.99Current price is: $24.99. /kit
Three separate builds in one pack
- Grades 3–5 · fits a single class period
- Broken or missing part? We'll post a replacement
What they'll learn
Three builds, four big ideas
Each one demonstrated by something you can set off yourself.
Conditional response
A sensor spots movement and sounds the alarm.
Environmental sensing
A sensor detects water and warns you.
Input/output
Buzzers, LEDs and boards working together.
Energy transfer
Power crossing a gap with nothing connecting it.
Specifications
Three builds, down to the last wire
Finished sizes, materials and part counts for every build in the pack.
Finished size
Object Immobilizer 74 × 55 × 67 mm · Rain Sensor House 63 × 55 × 95 mm · Wireless Power Transmission 180 × 170 × 115 mm
Weight
535 g
Materials
Wood, plastic
Pieces
76 pieces
Country of origin
China
Safety & compliance
Do not put small parts in your mouth and patiently guide children to install them
Certified with CPC. Full printed warnings are supplied in the manual.
What's in the box
Everything for all three builds, sorted and ready
- 3× sets of precision-cut wooden components
- 1× infrared (IR) sensor board
- 1× rain sensor board
- 2× acousto-optic control boards
- 2× buzzer + LED modules
- 1× LED lamp module
- 1× AC rectifier board
- 1× copper wire & 2× hand-wound coils
- 2× 3P Dupont wires
- 3× battery boxes (2×AA + 3×AA + 3×AA)
- 3× illustrated English manuals
- 54× screws and 4× cable ties, the assembly hardware for all three builds
Batteries: 8 × AA in total across the three builds, not included. Each build has its own battery box, so all three can run at the same time.
How this build works
See electronics in action
Build the circuit, switch it on, and understand the science by watching it work.
Build
Three separate builds, each with its own manual. The sensor builds connect with plug-in 3P Dupont wires, so there is no soldering at any point.
Play
Trigger the infrared alarm. Drip water on the rain sensor. Light the lamp across the coil gap.
Experiment
Slide the lamp further from the transmitter coil and watch it dim, then bring it back and watch it brighten. One variable, an immediate visible result.
Where to start
Master the basics first
Work your way up. All three projects are in the box, and each one you finish unlocks the know-how for the next, ending with the copper coils you wind yourself.
Start here
Rain Sensor House
Ages 8–11
Rain sensing
Then this
Object Immobilizer
Ages 8–11
Infrared sensing
Finish here
Wireless Power Transmission
Ages 8–11
Induction
Curriculum alignment
Educator & Procurement Resources
Essential information for classroom integration and school purchasing.
Every kit starts as a box of parts and turns into something kids can actually use. Making that happen means following directions and fixing mistakes along the way. They're tackling real engineering challenges, but to them, it just feels like play.
Each house in this pack answers a different question, so run all three as one investigation. Rain Sensor House: check it dry, add a few drops of water to the sensor on the roof and note whether the alarm goes off, then dry it and try again. Object Immobilizer: place an object in front of the sensor, move it further away a little at a time and note when the alarm starts, then try a different surface at the same distance. Wireless Power Transmission: compare two coil positions the manual allows and note whether the lamp lights. What it shows: each kit turns one change in the world into a light or a sound, and each sensor only notices one specific thing.
Whether you're exploring circuits in a science lab, tackling gears in a makerspace, or learning at home on the living room table, these kits fit right in. One quick tip if you're building a whole class set: build one kit yourself first, so you know where students are likely to need a hand.
PC University Distributors, Inc. is the exclusive distribution partner for E2K Robotics STEM kits to schools and educational institutions. From a single classroom to a district-wide rollout, message the team on WhatsApp at 516-596-1500 or email sales@pcuniversity.com, and they will send educational pricing and the full product list.
What educators & parents say
Reviews
Nothing here yet — and we'd rather say so
Verified reviews will appear on this page as soon as the first Balancing Robots are built at home and in classrooms. We don't carry ratings over from other kits in the range, and we don't publish anything that isn't from a verified buyer.
If you've built this one with your class, we'd like to hear how it went — what worked, what didn't, and what you'd change.
Questions, answered
Before you build
The Object Immobilizer is an anti-theft box: an infrared sensor detects movement and sets off a red LED and a buzzer. The Rain Sensor House is a wooden cottage whose roof-mounted sensor detects water droplets and triggers visual and audible alerts. Wireless Power Transmission is a Tesla-inspired pair of hand-wound copper coils that light an LED lamp across an air gap, with no direct electrical connection between them.
No. You will need 8 × AA batteries in total: 3 for the Object Immobilizer, 2 for the Rain Sensor House and 3 for Wireless Power Transmission. Each build has its own battery box, so all three can be powered and demonstrated side by side.
It suits ages 8 to 11. No prior electronics experience is needed: the boards plug together with the wires supplied, and each build has its own step-by-step manual. Younger builders will get on fine with an adult alongside them.
E2K Beginner Builders kits are designed to fit a single session, at around 15–30 minutes per build. With three builds in the pack, that gives you three separate sessions from one box, or one longer workshop if you'd rather run them together.
PC University Distributors, Inc. is the exclusive distribution partner for E2K Robotics STEM kits to schools and educational institutions. Message the team on WhatsApp at 516-596-1500 or email sales@pcuniversity.com for educational pricing, classroom quantities and the full product list.
Three manuals
One illustrated English manual per build
Made for ages 8–11
No prior electronics experience needed
Schools welcome
Educational pricing through PC University
Before you start
8 × AA batteries needed, not included
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Three projects. One smart home experience.
Bring it home for one curious kid, or kit out a whole classroom. Sensors, circuits and wireless energy — all in one pack.
Reviews
There are no reviews yet.