Description: JCJ176 digital display temperature and humidity sensors with standard RS-232 or 485 or output interface standard 4-20Ma / 0-5V analog signal, while with four control outputs, heater, cooling air conditioners, humidifiers, dehumidifier automatically controlled. This product is the average number of recursive filtering software filtering method with a combination of hardware circuit filter, so that the outside of the sample as possible to minimize interference, the full range of high precision, stable performance, consistency, and fast response. Can be built-in buzzer alarm. All control status LCD panel image icons and characters as instructed. Main features: JCJ176 or through a standard RS-232 serial interface 485 can be used with a computer composed of multi-point temperature and humidity monitoring system. Can simultaneously control the heater, air conditioning, refrigeration, humidifiers, dehumidifiers, the environment temperature and humidity control. Applications: industrial site monitoring and control, office, supermarket, archives, workshops, warehouses, room, construction sites and other monitoring and control applications. Transmitter output, the standard RS-232 or 485 communication interface, can be directly connected with the computer. The main technical indicators: temperature and humidity sensor digital temperature and humidity sensor type import sensitive components work 24VDC power supply 24VAC mouth mouth mouth 12VAC 12VDC power supply other features custom mouth :() Accuracy ≤±0.5℃@25℃ ± 3% RH @ 20% - 80% RH, temperature 25 ℃ transmitter output range 1, -20-80 ℃ 2, -20-60 ℃ 3,0-50 ℃ (the parameter user option should be labeled, the factory default for -20-60 degrees) and humidity range 0-100% RH output RS232 communication port RS485 port control output passive switch: temperature limit, the lower the temperature, humidity limit humidity limit, node load capacity: AC250V1A formal structure transmitter, probe integrated, white ABS plastic work Current ≤100mA (when with 4 relay control output function) Dimensions 86mmX86mmX27mm Wall Installation work environment -20 ℃ -70 ℃ Screen Display Description: Sensor wiring instructions: Open the controller cover at the back of the board will see the following identification of the terminal HH: dehumidification control output terminals for passive switch; HL: humidification control output terminals for passive switch; TH: Cooling control output terminals for passive switch; TL: heating control output terminals for passive switch; VCC: device power supply +; GND: Device Power supply - / temperature and humidity analog signal output "-"; HOUT: Humidity analog signal output "+"; TOUT: temperature analog signal output "+"; SGND: RS232 communication output signal, the received standard DB9 connector pin 5; A / T: RS232 signal output TXD, connect a standard DB9 connector pin 3 / RS485 communication A; B / R: RS232 signal output RXD, connect a standard DB9 connector pin 2 / RS485 communication B; Note: Make sure the wiring is correct and then the power measurement, the sensor signal output is strictly prohibited and miswired integrated chip and burn! ! !