Cart Remove item Thumbnail image Product Price Quantity Subtotal × design of a portable bio digester ₦ 5,000.00 design of a portable bio digester quantity ₦ 5,000.00 × design and construction of a gas detection system using arduino ₦ 5,000.00 design and construction of a gas detection system using arduino quantity ₦ 5,000.00 Update cart Cart totals Subtotal ₦ 5,998.00 Total ₦ 5,998.00 Proceed to checkout