Optional Parts CO2 Sensor

The CO2 sensor adopts the NDIR infrared CO2 detection technology, the measurement range is 400-2000ppm. It’s for indoor air quality detection of ventilation system, suitable for most residential houses, schools, restaurants and hospitals, etc.

      Holtop is the leading manufacturer in China specializing in the production of air to air heat recovery equipments. Founded in 2002, it has dedicated to the research and technology development in the field of heat recovery ventilation and energy saving air handling equipments for more than 20 years.

      Holtop has 400 employees and covers an area of more than 70,000 square meters. Annual production ability of heat recovery equipment reaches 200,000 sets. Holtop supplies OEM products for Midea, LG, Hitachi, McQuay, York, Trane and Carrier. As an honor, Holtop was the qualified supplier for Beijing Olympics 2008 and Shanghai World Exposition 2010.

Holtop mainly deals in air conditioning products, fresh air products and heat exchanger products.

      Among them, the air conditioning products include roof-mounted air conditioners, modular air-cooled water-cooled heat pump air conditioners, and direct expansion type air conditioners, which are the best-selling products. The fresh air products include the CFA series of energy recovery ventilators, which are the best-selling products.The heat exchanger products mainly include plate heat exchangers, 3D counter-flow high-efficiency heat exchangers, plate-fin heat exchangers, etc.

Currently, Holtop has served 106 countries and regions, addressing the needs of over 5 million customers. It is highly favored and loved by the international market and customers.