1.1 General Information for the users Thank you for purchasing Young Tech Co., Ltd products. Each product has been fully inspected after its production to offer you the highest quality and reliable performance. Please read the product manual carefully prior to installing and commission the product.  For the safety, it is important to follow the instructions in the manual. Young Tech Co., Ltd will not be responsible for any damages caused by user’s negligence.  The manual should be provided to the end-user.  Any modifications or repairs to the product may only be performed if expressed in this manual.  The manual can be altered or revised without any prior notice. Any changes in product’s specification, design, and/or any components may not be printed immediately but until the following revision of the manual.  The manual should not be duplicated or reproduced for any purpose without prior approval from Young Tech Co., Ltd, Gimpo-si, South Korea. 1.2 Manufacturer Warranty  For the safety, it is important to follow the instructions in the manual. Manufacturer will not be responsible for any damages caused by user’s negligence.  Manufacturer will not be responsible for any damages or accidents as a result of any alteration or modification of the product and its parts. If any alteration or modifications are necessary, please contact Young Tech Co., Ltd directly.  Manufacturer warrants the product from the date of original purchase of the product for eighteen (18) months, except as otherwise stated.  Manufacturer warranty will not cover products that have been subjected to abuse, accidents, alterations, modifications, tampering, negligence, misuse, faulty installation, lack of reasonable care, repair or service in any way that is not contemplated in the documentation for the product, or if the model or serial number has been altered, tampered with, defaced or removed; damages that occurs in shipment, due to act of God, failure due to power surge, or cosmetic damage. Improper or incorrectly performed maintenance will void this limited warranty.  For detailed warranty information, please contact Young Tech Co., Ltd – South Korea.

Mengchuan Instrument Co., Ltd. is located in Liushi Town, Yueqing City, Wenzhou, Zhejiang Province, surrounded by the beautiful world natural and cultural heritage - Yandang Mountain! It is mainly engaged in 2000 differential pressure gauge, red oil differential pressure gauge, pressure differential pressure transmitter, liquid level transmitter, diaphragm pressure gauge, shockproof pressure gauge, electric contact pressure gauge, stainless steel pressure gauge, precision pressure gauge, micro pressure capsule gauge, floating ball liquid level gauge, floating ball switch, liquid level controller, intelligent energy gauge, light column gauge and other products. The products are widely used in machinery and civil industries such as plastics, food, printing, chemical industry, petroleum, medical treatment, oven, light textile, printing and dyeing, air conditioning, family and so on.

The company adheres to the business philosophy of "customer first, forge ahead" and adheres to the principle of "customer first" to provide our customers with high-quality services. Welcome!