توضیحات
Maximum security for your room! Build an electronic door alarm and stop intruders in their tracks. If someone opens your bedroom door, an alarm will sound and a red light will catch them in the act! This kit includes a book and all the parts you'll need to build your own door alarm and discover the wonders of electricity. No tools required.
جزئیات کتاب
فرمت
جلد نرم
صفحات
16 صفحه
زبان
انگلیسی
منتشر شده
فوریه 1, 1998
ناشر
Troll Communications Llc
ISBN-10
0816744653
ISBN-13
9780816744657