Overview: 
 HS402 intelligent temperature and humidity controller, designed for the room, substation and other occasions to use a new intelligent temperature and humidity controller, can access up to 10 channels of temperature and humidity probe optional electrical parameter measurement function, real-time monitoring of electricity circuit parameters and circuit electricity consumption statistics, and separate mains, and self-powered electric power statistics. Available statistics to date, average temperature and humidity and record the date the maximum temperature and humidity occurred. The intelligent temperature and humidity control. With 4-way switch inputs and 4 relay outputs, 4 relay outputs can be configured as alarm output or heating or ventilation output. RS485, 433M wireless, text messaging and other communication interface modular design, flexible configuration based on customer needs. 

 The main technical indicators 
 ◆ working environment: Temperature: -20 ℃ ~ 70 ℃ Humidity: ≤ 95% RH 
 Operating voltage: AC/DC220V ± 10%, other operating voltage can be customized 
 ◆ Relay contact power: AC220V/5A, (normally open, passive) 
 The dot matrix LCD optional ◆ Display: digital tube (the HS402A using digital tube HS402B using dot-matrix liquid crystal display) 
 Storage capacity: can be stored more than 10 years the average temperature of the month, day, and the associated event log. 
 ◆ Communication Interface: RS485, 433M wireless, text messaging and other communication interface optional. 
 ◆ communication protocol: commonly used in industry standard MODBUS-RTU protocol. 
 ◆ Installation: panel flush mounting hole size: HS402A (91 * 46mm) HS402B (90 * 90mm) 


 HS402 Series Intelligent temperature and humidity controller model definition: 

 A product model code: HS402A, HS402B 
 Statistical functions: statistical functions, omit this 
 3, event logging functions: event log function, omit this 
 4, electric parameter measurement function: I: indicates that the measurement circuit; U: Indicates the measured voltage; P: said measuring current, voltage, active power, reactive power, power factor and other parameters; Z: said measuring current, voltage, active power, reactive power, power factor, active energy, reactive energy. Electric parameter measurement functions to omit this. 
 5, the communication interface: S1 indicates the RS485 interface, S2 433M wireless communication interface, then the S3 SMS