Our company, Shanghai Deso Industrial Co., Ltd, holds a subordinate manufacture specialized in reversing and parking sensors system, car alarm system, tire pressure monitor system, tire inflator etc. Now we have 400 works to produce parking sensor and car alarm. Our turnover per month is totally 180000pcs. And now we have pass ISO9001 and got CE, E-MARK, FCC etc approvals. For parking sensor, according to customers' feedback and our investigation in Chinese market, we can state that our parking sensors are the best in China. The quality of these products is better than the products from Germany, Taiwan etc. The Guarantee of A-series is 3 years more than the standard in European. The electric components are from Samsung, Philip, etc. The sensor's sensitivity is 2-3 times better than other similar products. It can even detect 2mm steel wire.