Description: OC-4000 Industrial alarm monitor with different channels for choice: 2 channels, 4 channels and 8 channels, it composed of the metal shell, Power key, main board, interface board, alarm, etc. The display screen is the 0.8 inch Nixie tube, for displaying each gas concentration, also with the indicate light for the each channel. When press the key, if press less than 20ms, the key signal will be invalid, when the time between the 20ms~3s, the key signal is normal. If more than 3s, the key signal will be long-press. Why choose us? We Henan Oceanus Company is located in Henan province, a land with a long history and profound cultural heritage, has been dedicated to the research, development, production, and sales of air quality monitor system since its establishment. With exquisite technology and outstanding quality, we have won widespread recognition in the global market. 01. Business areas As a leader in the field of Gas detector and Air quality monitor system, we Henan Oceanus will be continued to expand its business scope and provide customers around the world with customizable Air quality monitor system of various types and specifications. 02. Values and ideas Our company upholds the core values of integrity and quality service, focusing more on friendship with our customers. We always adhere to integrity management, customer-centered, and provide a full range of pre-sales, sales, and after-sales services to ensure that customers can be worry-free when using our products. 03. Global Service Network We have a comprehensive global service network, offering timely, professional pre-sales consultation, after-sales service, and technical support for overseas users. Regardless of where users are located, they can enjoy our attentive and thoughtful service. 04. Customer Service With excellent products and services, Henan Oceanus Gas detector and Air quality monitor system have been exported to more than 100 countries around the world and have won widespread praise. Features: Power supply: AC220±20%, 50Hz; output voltage is DC24V, consumption is less than 2W; Quickly process the signal from gas detector and display the real-time data; With the optional audible-visual alarm function, low alarm and high alarm with different frequency audible alarm; Four group relay output, suitable for different application; The communication is 4~20mA or RS485; With the function of erasure, if mis-operation, pressing the reassure key will be ok; The shell with the function of waterproof and resist compression; Technical parameter: Item Description Display LED display Output voltage AC220V±20%，50HZ Consumption ＜2W Channel quantity Two channels, Four channels, Eight channels Detector power supply DC24V, 300mA/channel Input signal 4~20mA (Optional RS485) Relay output AC220V/2A, DC24V/2A Audible-visual alarm Audible alarm ＞80dB(1m), visual is optional Working temperature -20℃～ 50℃ Working humidity ≤95%RH(non-condensing) Body material Metal Installation type Wall-mounted Dimension L263mm*W180mm*H70mm(2/4 channels) L325mm*W220mm*H74mm(8 channels) Weight 4.0kg Standards GB 16808-2008 Warranty 12 months   Applications: The OC-4000 Gas detection controller used to connect with the fixed gas detector and the related equipment in industrial scene, such as petroleum refinery, chemical plants, LPG stations, boiler rooms, gas stations, paint spray booths, metallurgy, mining, fire, environmental protection, etc.   If you need more details of the Air quality monitor station, welcome to contact us: No. 2206, Wenhua Chanye Building Block B, No. 77, Shangding Road, Zhengzhou Area, Henan Pilot Free Trade Zone Email: [email protected] Telephone: 86 0371 60998169 Mobile/Whatsapp: 86 15981942832 Mobile/Whatsapp: 86 13673683950