Digital Temperature and Humidity Display Screen 485 Type Large LED Wall-Mounted Calendar and Clock Adjustable Settings Indoor Use Remote Control Compa

Feature 1、Reliable Performance: Displays the temperature, humidity and time statically to prevent the video image from flickering. The product also has a perpetual calendar display, which can display the year, month, day, week, hour and minute. The time will automatically run after power failure. 2、Flexible Sensors: Imported sensors are used, with temperature accuracy of ± 0.4 ℃ and humidity accuracy of ± 2% RH, stable and reliable performance. 3、Good Features: The product adopts 485 communication interface, standard RTU communication protocol, communication address and baud rate can be set, and the maximum communication distance is 2000 meters. 4、Alarm and Hysteresis Values: The upper and lower limits of alarm and hysteresis values can be set. If the limit value is exceeded, an audible and visual alarm (optional) can be given. The device can quickly modify the value by pressing the button, which is convenient and fast. 5、Installation Position: The product can be installed on the wall and hung up, and can be installed in a variety of on site environments. 6、Red Light: The red light highlights the nixie tube. Even in strong light, the nixie tube can be clearly displayed during the day and night. 7、Aluminum Alloy Frame: The frame is made of high hardness aluminum alloy, which is firm and reliable. Item Type: Temperature and Humidity Display Material: Aluminum Alloy Color: As Pictures Shown Weight: Approx. 2165g / 4.8lb Line Color: Red A, Black B Power Supply: 10-30V Installation Hole Pitch: Approx.34.8cm / 13.7in Product Size: Approx. 49x29x4cm / 19.3x11.4x1.6in Remote Control Battery: 1 x CR2025 Button Battery (Shipped Without Battery) Maximum Power Consumption 0.8W 0.8W A Accuracy Humidity ± 2% RH (60% RH, 25 ℃) Temperature ± 0.4 ℃ (25 ℃) B Accuracy(Default) Humidity ± 3% RH (60% RH, 25 ℃) Temperature ± 0.5 ℃ (25 ℃) 20 ℃~+60 ℃, 0% RH~95% RH, non condensing Working Temperature of Transmitter Circuit -40 ℃~+120 ℃ Default Value: - 40 ℃~+80 ℃ Working Humidity of Probe 0% RH-100% RH Working Temperature of Probe 0.1 ℃ Temperature Display Resolution 0.1% RH Humidity Display Resolution 1s Temperature and Humidity Refresh TimeLong term stability Humidity Humidity ≤ 1% RH/y Temperature ≤ 0.1 ℃/y Response Time Humidity ≤ 8s (1m/s wind speed) Temperature ≤ 25s (1m/s wind speed) RS485 (protocol) Output Signal Beijing time, automatic operation after power failure Time Display Wall or Hanging Wire Installation: When connecting 485 signal lines, note that the two lines of A/B cannot be reversed, and the addresses of multiple devices on the bus cannot conflict. Signal Communication (Upper Socket) Line Color illustrate Red 485-A Black 485-B Application: It is widely used in interrogation room, conversation room, laboratory, construction site, factory workshop, greenhouse, warehouse, wine cellar, cold storage, machine room monitoring system, sewage treatment, medical health monitoring, smart home and other fields. Package List 1 x Temperature and Humidity Display 1 x USB Connector 1 x Remote Control 4 x Screw 4 x Plastic Expansion Pipe 1 x Power Adapter 1 x Manual Note Standby cannot be connected to PLC or computer Possible causes: 1) The computer has multiple COM ports, and the selected port is incorrect. 2) The device address is incorrect, or there is a device with duplicate address (factory default value is 1). 3) Baud rate, check mode, data bit, stop bit error. 4) The polling interval and response waiting time of the host are too short, and both need to be set to more than 200ms. 5) 485 bus is disconnected, or A line and B line are reversed. 6) If the number of equipment is too large or the wiring is too long, power supply shall be provided nearby, 485 voltage boosters shall be added, and 120 Ω terminal resistance shall be added at the same time. 7) The USB to 485 driver is not installed or damaged. 8) Equipment damage.