YouTube par "metal detector kaise banaye" ki bahut videos hain. Ghar par bana metal detector kaise kaam karta hai, kitni gehrai deta hai, aur asli machine se kitna alag hota hai — ek electronics company ki nazar se.
3D metal detector screen par zameen ka graph kaise banata hai, ye aam metal detector se kaise alag hai, iski asli gehrai kitni hoti hai aur kharidne se pehle kaunsi baatein zaroor jaanni chahiye.
Gold detector zameen ke andar sona kaise pehchanta hai? VLF aur Pulse Induction technology ka farak, frequency ka role, aur kis zameen ke liye kaunsi machine sahi hai — aasaan bhasha mein.