1It is widely used in agricultural greenhouses, flower cultivation and other occasions requiring light intensity, temperature and humidity monitoring. 2Wall-mounted, easy installation, and the small volume will help saving your space. 3Compact and portable design, high density material shell, closed moisture-proof effect is significant. 4Exquisite welding circuit board, automatic manipulator welding process, to ensure the circuit board signal stability and accuracy, long-term reliable. 5High quality optical components, close to the visual sensitivity of the spectral characteristics, a wide range of luminance can be determined by 1 lx with high precision. 6With 485 communication, standard modbus-rtu communication protocol, communication address and baud rate can be set, the maximum communication distance is 2000m/6561.7ft. 7Powered by 0-30V DC wide voltage, low power consumption, energy saving. 8Waterproof design, it can be used indoors and outdoors to meet more needs of customers. Condition: 100% Brand New Item Type: Light Intensity Temperature Humidity Transmitter Material: Polyester Plastics Color: As shown in the picture Size: Approx.13x11.7x5.5cm / 5.1x4.6x2.2in Weight: Approx.208g/7.3oz DC Power Supply (default): 10-30V DC Maximum Power Consumption: 0.4W Humidity Accuracy: 3%RH (5%RH~95%RH, 25C) Temperature Accuracy: 0.5C (25C) Light intensity Accuracy: 7% (25C) Light Intensity Range: 0-200,000 Lx Temperature and Humidity Range: -40 C ~ +60 C, 0% RH ~ 80% RH Long-term Stability Temperature: 0.1C/y Long-term Stability Humidity: 1%/y Long-term Stability Light Intensity: 5%/y Response Time Temperature: 18s (1m/s wind speed) Response Time Humidity: 6s (1m/s wind speed) Response Time Light Intensity: 0.1s Basic Communication Parameters: v:* {behavior:url( default VML);} o:* {behavior:url( default VML);} x:* {behavior:url( default VML);} .shape {behavior:url( default VML);} Coding 8 bits binarysystem Data bits 8 bits Parity check bit None Stop bit 1 bit Error check CRC(redundant cyclic code) Baud rate can be set 2400bit/s,4800bit/s and 9600 bit/s can be set, and the factory default is 4800bit/s Data Frame Format Definition: Adopt Modbus-RTU communication protocol, the format is as follows: Initial structure 4 bytes of time Address code = 1 byte Function code = 1 byte Data area = N bytes Error check = 16-bit CRC code End structure 4 bytes of time Address Code: is the address of the transmitter, which is unique in the communication network (factory default 0x01). Function Code: The instruction function of the command sent by the host. This transmitter only uses function code 0x03 (read register data). Data Area: The data area is the specific communication data. Note that the 16bits data high by