SPECIFICATION: Ethernet serial server input voltage is wide voltage 5-36VDC, size is about 95 x 65 x 25mm / 3.7 x 2.6 x 1in, working temperature is -45-85 ℃ | PROTOCOL: RS485 to ethernet converter support for TCP / for IP / for Telnet / for Modbus TCP protocol, ethernet interface form is 1 RJ45 | WIRELESS WORKING: WiFi serial port device server support wireless working STA / AP / AP + STA, can meet your using requirement | SERIAL PORT SPEED: Serial network server supports RS232 / RS422 / RS485 to Wi-Fi / Ethernet data transmission, the maximum serial port speed is 230400 bps | CERTIFICATION: 5-36VDC serial port server uses MIPS MCU (8MB for SRAM) and 4MB Flash, based on eCos operating system, passed FCC_CE_RoHS_SRRC_REACH certification

【Features】This light meter has high accuracy and rapid response,and auto zeroing function. | 【Professional design】It supports over-range indication, unit and sign display for easy reading.Handheld design, lightweight and compact, easy to transport | 【Performance】Data hold and maximum data hold function,low power consumption, short rise and fall time. | 【Practical Function】The unit is switchable between Lux and FC, simply by pressing a button. | 【Widely Used】Widely used for light test of public stores, library, museum, lamp factory, photo shooting, stage disposition of light, etc.