Demar Electronics is located at 1212 Surrey Ct, Algonquin, IL. This business specializes in Electronics. Demar Electronics is open Mon, 8am-5pm; Tue, 8am-5pm; Wed, 8am-5pm; Thu, 8am-5pm; Fri, 8am-5pm; Sat, Closed; Sun, Closed and accepts American Express, Mastercard, Personal Checks and Visa.