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GPRS/4G/NB-IOT O3 gas sensor air quality o3 sensor toxic and harmful ozone o3 detector wireless mobile phone network

GPRS / 4G / wifi / analog / RS485 sulfur dioxide meter gas detector so2 gas sensor

RD-SN-01-Soil NPK-N sensor Online monitoring RS485 digital signal LORA LORAWAN GPRS NB-IOT agriculture probe soil NPK meter

3.5 Inch HMI Smart TFT LCD Module LCD Screen Display Screen with RS232/RS485/TTL Port

7INCH 50PIN AT070TN92 AT070TN93 AT070TN94 7 inch lcd screen + touch screen Car navigation GPRS LCD screen touch screen assembly

7 LCD Touch Screen With RS485 Interface

Active Matrix LCD 5 Inch Colorful LCD With Touch Screen And RS485 Port

2pc/lot High Gain WIFI Antenna For GPRS NB-IOT 3g 4g Flexible Antena CDSENET TXGN-JKD-20 3.0dBi Omnidirectional Antena Wifi

WM-5000L4 4G GPRS Real Time Web Software Security Guard Patrol Tour System with OLED Screen

GPRS Real Time Web Software Security Guard Patrol Tour System with OLED Screen WM-5000L4 4G

Gprs/4g/nb/rs485 Lcd Large Screen Nitric Oxide Gas Sensor ...

        HD large screen display,easy to read,the numerical display is clear at a glance.Plug and play measurement is quick and easy.it support wifi/RS485/Anglog ethernet/GPRS/4G/NB-loT multiple ways.The sensor adopts 2.88-inch LCD large screen, and the data is displayed on one screen,which increases the visual distance and is convenient for reading data at a Iong distance,which is more convenient to use.Rich LCD icons for real-time display of working status.

RS485 GPRS Nb-Iot IP68 Insertion Electromagnetic Remote ...

RS485 GPRS Nb-Iot IP68 Insertion Electromagnetic Remote Flow Meter video & price comparison, get China RS485 GPRS Nb-Iot IP68 Insertion Electromagnetic Remote Flow Meter price comparison from Electromagnetic Flow Meter,Water Flow Meter manufacturers & suppliers on Video Channel of Made-in-China.com .

Cinterion® BGS2 GSM/GPRS Mobilfunk-Terminal mit RS-485 ...

4G LTE, 3G UMTS/HSPA, LAN, programmierbar. Industrie-Computer 4G LTE, 3G UMTS/HSPA, LAN (Intel oder RISC) Downloads Handbücher, PCN/EOL, Router Firmware, Produkt-Broschüren, ISO Zertifikat. Module, Antennen, HF-Kabel und Adapter. Mobilfunk-Module 5G, 4G LTE, 3G UMTS/HSPA, 2G EDGE/GPRS, NB-IoT, GPS/Glonass, GSM-R. Antennen, HF-Kabel und Zubehör

20x4 Zeichen RS-485/422 LCD Modul, embedded-channel.de

Bestell-Nr.: RS485-LCD: 34,80 € inkl. gesetzl. MwSt. zzgl. Versandkosten (Nettopreis ohne MwSt.: 30,00 €) Lieferbar ab Lager, nur noch 6 Stück verfügbar Farbe LCD-Modul: In den Warenkorb: Fragen zum Produkt? Kontaktieren Sie uns: [email protected]: Technische Daten. 20x4 Zeichen; Zeichenformat 7x5 Punkte; RS485/422 serielle Schnittstelle; robuste, störsichere Datenübertragung ...

SRF485 Ultraschallsensor mit RS485 Interface und ...

Der SRF485 Sensor verwendet den RS485-Standard für die Kommunikation mit bis zu 127 Modulen. Der SRF485 verfügt über einen integrierten 5-V-Leistungsregler, der von 8 V DC bis 14 V DC geregelt werden kann. Sowohl Strom- als auch RS485-Signale werden dem Modul über einen 10-Pin-IDC-Stecker zugeführt, wodurch die Verkabelung einer großen Anzahl von Modulen sehr einfach ist. Die Reichweite ...

RS485 Board (3.3V) RS485 communication board, SP3485 on ...

The RS485 Board (3.3V) is an accessory board used for adding the RS485 transceiver to your application board. The RS485 Board (3.3V) features a SP3485 onboard, integrates pinheaders and connectors to support multiple communication interfaces. It is designed to use 3.3V power supply.

MODBUS to GPRS(2G/3G/4G/LTE) Converter - Cascademic Solutions

RS232 / RS485 UART / TTL RF Communication: 4G LTE: Category - Cat-1 Frequency Bands - B3, B8, B20 3G: Technology supported - UMTS Frequency Bands - B1, B2, B5, B6, B8, B19 2G: Technology supported - EDGE, GSM, GPRS Frequency Bands - 850, 900, 1800, 1900 (MHz) User Interface: LED Indication: Power Status MODBUS Slave device Status

Industrial RS485 to 4G LTE WiFi Modem Router GW-R4513-AU ...

GW-R4513 is a 4G LTE wireless router with the functions of RS485 to 4G transmission, which provides users with an industrial 4G router and DTU integration solution. It adopts the high-performance embedded system and provides reliable data transmission for the various industrial control and monitoring.

NB-IoT/eMTC/EDGE/GPRS/GNSS HAT for Raspberry Pi, Based on ...

Overview. This Raspberry Pi HAT features multi communication functionalities: NB-IoT, eMTC, EDGE, GPRS, and GNSS. The NB-IoT (NarrowBand-Internet of Things) and eMTC (enhanced Machine Type Communication) are rising IoT communication technologies evolved from LTE (4G), with advantages include low power, low cost, wide coverage, etc.

COMMUNICATIONS: Wireless, Internet, GPS, Serial, RS485, IR

IR Infrared Robot Remote Control Kit 2.4 GHz Antenna RP-SMA for nRF24L01+ modules 2.4GHz Transceiver w/ Power Amp +PreAmp nRF24L01+ nRF24L01 2.4GHz Transceivers Kit (High-Power) Sale Item SD Card Module (3.3 or 5V)

GSM/LTE/3G/4G/5G Mobilfunk-Module kaufen » MC Technologies

5g, 4g lte, 3g umts/hspa, 2g edge/gprs, gps/gnss, nb-iot module Mobilfunkmodule für die industrielle Datenkommunikation, M2M/IoT und Industrie 4.0 MC Technologies ist seit über 20 Jahren ihr Partner im Bereich Mobilfunk-Module für die Datenkommunikation.

rs485 sensor, rs485 sensor Suppliers and Manufacturers at ...

GPRS/4G/NB/rs485 LCD large screen ozone sensor O3 gas sensor industrial grade o3 transmitter . US $116.00-$193.00 / Piece 1 Piece (Min. Order) 2 YRS . Weihai Jingxun Changtong Electronic Technology Co., Ltd. (12) 97.1% " Excellent service " (1) " Fast delivery " (2) " Professional company " (1) Contact Supplier ··· 0-5V or 4-20mA analog output solar radiation sensor pyranometer photovoltaic ...

RS485 – RN-Wissen.de

RS485 4-Draht-Bus. Die z.B. vom DIN-Meßbus (DIN 66 348) genutzte 4-Draht-Technik kann nur von Master/Slave-Anwendungen verwendet werden. Der Datenausgang des Masters wird in dieser Betriebsart auf die Dateneingänge aller Slaves verdrahtet. Die Datenausgänge der Slaves sind zusammen auf den Dateneingang des Masters geführt. Besonderheiten: Obwohl für große Entfernungen in industrieller ...

E180-DTU(ZG120-485)-

[Interface]:RS485 [Weight]:72.4g±5g [Introduction]:E180-DTU (ZG120-485) is a wireless communication device based on ZigBee technology. As a communication medium, like optical fiber, microwave, and cable, it has a certain scope of application, it provides real-time and reliable data transmission of monitoring signals in a private network under certain special conditions.

Gas detector sensor_soil probe_water monitor-Jingxun Changtong

RS485/4-20mA; Lora/NB/4G/GPRS sensor; 4g/WiFi/NB Gas monitor; Ethernet gas sensor; Split gas sensor; Environmental Monitor . Air Quality Monitoring System; Weather Station; Temperature and humidity sensor; Pressure Transmitter; Smart Solution. IoT Smart Agriculture; Automatic irrigation; About Us. All Our Company Contact Us Leave Message. HOT PRODUCT. PRODUCT DISPLAY. Gas sensor module; Fixed ...

GPRS - HI-FLYING.COM

gprs The Elfin-EG1X series support RS232/RS485 to GPRS, Elfin-EG1X unit is a complete solution for serial port device connecting to network. This powerful device supports a reliable and proven operating system stored in flash memory, an embedded web server, a full TCP/IP protocol stack,and standards-based (AES) encryption.

Gprs 3g 4g Digital Input Output Analog Input 4-20ma 0-5v ...

Gprs 3g 4g Digital Input Output Analog Input 4-20ma 0-5v Rs485 Sensor To Cloud Nb-iot,Lora,Ethernet,Remote Meter Reading , Find Complete Details about Gprs 3g 4g Digital Input Output Analog Input 4-20ma 0-5v Rs485 Sensor To Cloud Nb-iot,Lora,Ethernet,Remote Meter Reading,Gprs 3g 4g Sensor To Cloud,Sensor To Cloud,Remote Meter Reading from Alarm Supplier or Manufacturer-Shenzhen King Pigeon ...

DATASHEET // TRB255 INDUSTRIAL M2M LTE CAT-M1 / NB-IOT ...

Power LED Ethernet port Mobile antenna connector GPS antenna connector RS232/RS485 port Reset button DATASHEET // TRB255 INDUSTRIAL M2M LTE CAT-M1 / NB-IOT / EGPRS GATEWAY Hardware Mobile 4G/LTE (Cat M1), NB-IoT, 2G CPU Qualcomm, MIPS 24Kc, 650 MHz Memory 16 MBytes Flash, 64 MBytes RAM Powering option 16pin terminal, 9-30 VDC SIM 2 x Internal SIM holders (2FF) Antenna connectors 1 x SMA for ...

rs485 to gprs, rs485 to gprs Suppliers and Manufacturers ...

Ebyte gsm data receiver atm pos industrial din rail rs232 rs485 to 4g 3g gprs ip modem with digital inputs support tcp modbus ... 5KW 240V Wind Solar Hybrid Controller With LCD/RS485 For 5000W Wind Generator . US $529.00-$529.00 / Piece 1 Piece (Min. Order) 9 YRS . Jinan Deming Power Equipment Co., Ltd. (4) 82.7% " Excellent service " (1) " Fast order " (1) " Nice people " (1) Contact Supplier ...

[Bester Preis] Boden PH detektor RS485 analog gewächshaus ...

Wholesale Price Soil Ph Detector Rs485 Analog. Sonderpreis Nur US $65.30 - 142.58 Boden PH detektor RS485 analog gewächshaus high präzision 4G/NB boden pH sensor. Soil sensor aus Soil Ph Detector Rs485 Analog Kategorie, kostenloser Versand

RS485 CAN Shield Designed for NUCLEO/XNUCLEO

The RS485 CAN Shield will easily enable RS485/CAN communication functions for your NUCLEO/XNUCLEO Arduino boards. Features. Arduino standard interfaces, compatible with Arduino boards like Arduino UNO, Leonardo, NUCLEO, XNUCLEO when using with Arduino UNO, Leonardo, the CAN function is unavailable due to hardware limitation

Botletics LTE CAT-M/NB-IoT + GPS Shield for Arduino : 10 ...

The Botletics SIM7000 LTE CAT-M/NB-IoT shield uses the new LTE CAT-M and NB-IoT technology and also has integrated GNSS (GPS, GLONASS and BeiDou/Compass, Galileo, QZSS standards) for location tracking. There are multiple SIM7000-series modules that cater to different regions around the world, and luckily SIMCOM has made it really easy to identify: SIM7000A (American), SIM7000E (European ...

Made In China High Precision Flowmeter,Modbus / Rs485 / Nb ...

Made In China High Precision Flowmeter,Modbus / Rs485 / Nb-iot / Lora / Electromagnetic Flowmeter , Find Complete Details about Made In China High Precision Flowmeter,Modbus / Rs485 / Nb-iot / Lora / Electromagnetic Flowmeter,Flow Meter Supplier,Smart Flowmeter,Water Flow Meter from Flow Meters Supplier or Manufacturer-Shanghai Mingwan Intelligent Instrument Co., Ltd.

Best value Gprs Rs485 – Great deals on Gprs Rs485 from ...

2020 popular gsm modbus, serial server, rs232 to rs485, hf2421 trends in Security & Protection, Building Automation, Computer & Office, Tools with Gprs Rs485 and gsm modbus, serial server, rs232 to rs485, hf2421. Discover over 345 of our best selection of gsm modbus, serial server, rs232 to rs485, hf2421 on AliExpress.com with top-selling gsm modbus, serial server, rs232 to rs485, hf2421 brands.

PLC Remote Control Module RS232 RS485 to Wireless WiFI for ...

Cheap Instrument Parts & Accessories, Buy Quality Tools Directly from China Suppliers:PLC Remote Control Module RS232 RS485 to Wireless WiFI for PLC HMI Communication, GPRS 4G Ethernet RFM Optional Enjoy Free Shipping Worldwide! Limited Time Sale Easy Return.

TG501 Mini RTU -I/O,Relay,RS232/RS485 - Bivocom

Compatible with global 4G/3G/2G and LTE CAT M1/NB-IoT 2-RS232, 1-RS485, 3-ADC, 2-DI, 2-Relay, 1-power output Modbus TCP/RTU, MQTT, TCP/UDP protocols Up to 16MB Local data storage, support 5 data centers SMS alarm and AT command Buy Now. Overview Specifications Case Study Order Information Bivocom TG501 is an industrial cellular RTU designed for remote monitoring and control applications, such ...

Shenzhen King Pigeon Comm Co., Ltd - 4G M2M RTU, 4G ...

GPRS 3G 4G digital input output analog input 4-20mA 0-5v rs485 Sensor To Cloud NB-IoT, LoRa, Ethernet,remote meter reading $30.00 - $40.00 / Piece 1.0 Pieces (Min. Order)

IOT Networking & Comms, M2M Solutions Distrbution @ IOT ...

4G-3G GPS GNSS HAT for Raspberry Pi LTE CAT4 Global Version (SIM7600G-H) $149 00 $149.00 $179 00 $179.00 Save $30 TG452 Industrial Cellular 4G Edge IOT Computing Gateway (AU Freq.) $529 00 $529.00 $629 00 $629.00 Save $100 RAK2013 Cellular WisLink Raspberry Pi-HAT BG96 LTE Cat-M1, NB-IoT with VoLTE. $139 00 $139.00 $189 00 $189.00 Save $50 Industrial Premium 4G LTE Cellular NR300 Compact ...

USB-RS485 | Schnittstellen | Module | EXP Tech

Das USB-RS485-Modul bietet eine einfach zu verwendende RS485-Schnittstelle über einen virtuellen Com-Port des Benutzersystems. Es gibt keine Befehlsstrukturen. Was an den Virtual Comm Port gesendet wird, wird automatisch in RS485 konvertiert und umgekehrt. Das Modul wird vollständig über den USB-Bus mit Strom versorgt.

Industrial 2g 3g 4g dtu Modem Serial port Gsm Gprs ...

Cheap Fixed Wireless Terminals, Buy Quality Cellphones & Telecommunications Directly from China Suppliers:Industrial 2g 3g 4g dtu Modem Serial port Gsm Gprs Transmitter rs232 rs485 uart 4G Wireless Transceiver XZ DG4M Enjoy Free Shipping Worldwide! Limited Time Sale Easy Return.

SIM7070G NB-IoT / Cat-M / GPRS HAT for Raspberry Pi ...

This is a telecommunication HAT for Raspberry Pi which supports global bands of NB-IoT, Cat-M, and GPRS, as well as GNSS positioning function. Due to its advantages like small size, low delay, and wide coverage, it is the ideal choice for IoT applications such as intelligent instruments, asset tracking, remote monitoring, e-health, and so on.

GSM/GPRS Shield for Raspberry Pi - Send SMS or Voice Call ...

With the low-power Quectel's M66 quad-band GSM/GPRS module on the HAT, SMS & Data transmission and making a voice call is possible by this Raspberry Pi GSM/GPRS Shield. You can use this Raspberry Pi GSM shield to connect Raspberry Pi to internet via PPP(Point-to-Point Protocol). It can be used in standalone mode too.

GPRS Gateway - RS485 To GPRS Gateway Manufacturer from ...

To enhanced surge protection for all ports, we have 6KV/3KA (EN61000-4-5 surge level 4 above) For all serial signals the system has an inbuilt 15 KV ESD protection . GPRS GATEWAY. Maximum O/P Power 2W for GSM 900 and 1W for GSM 1800/1900; TCP/UDP,HTTP,FTP,PPP supported; Baud 300 to 115200bps; Inbuit Micro SD card for Data Storage; Data/SMS

TW810 Industrial NB-IoT Modem with Terminal Block RS-232 ...

TW810 Industrial LTE CAT-M1 & NB-IoT Modem with Terminal Block Supports RS-232/485/422 I/O. TW810-GL: Industrial NB-IoT Modem (B1/B3/B8/B5/B20/B28) TW810-MS7E: Industrial LTE CAT M1/NB1 Modem SIM7000E (Quad-Band FDD-LTE B3/B8/B20/B28 GPRS/EDGE 900/1800 MHz) Bivocom TW810 series LTE-M/NB-IoT modems are designed for applications require better signal and coverage, lower consumption serial modem ...

LoRa/4g/Gprs/NB Hydrogen sulfide gas detector h2s gas ...

LoRa/4g/Gprs/NB Hydrogen sulfide gas detector h2s gas sensor with cloud server. The whole series of environmental sensors include RS485 output mode, analog output mode, Ethernet output mode, GPRS output mode and 433MHZ wireless wiring-free output mode. It can be widely used in industry, agriculture, scientific research, harsh environment monitoring and other aspects. Detailed Images Our ...

TD210 IoT Cellular Modem -Meter Reading&PLC - Bivocom

Industrial MCU built in, rugged and reliable Global 4G/3G/2G compatible 1-RS232, 1-RS485 Modbus RTU, MQTT, TCP/UDP protocols Transparent data transmission, Modbus to JSON over MQTT, CSD AT Command, SMS Up to 5 sync data center Wide operation voltage: 5-35VDC Working temperature: -35°C~+75°C

All Libraries - Arduino Libraries

A library to control a 16x2 LCD via an I2C adapter based on PCF8574. LCD_ST7032: Arduino library for ST7032 LCD controller with i2c interface: lcdgfx: VGA, SSD1306, SSD1331, SSD1325/SSD1327, SSD1351, IL9163/ST7735, ILI9341 PCD8544 spi/i2c OLED/LED Display driver. LCDIC2: Class interface for Liquid Crystal (LCD) leOS

FM36M1 - 4G LTE Bluetooth GPS Tracker | Teltonika GPS

4G LTE Bluetooth and NB IoT GPS tracker FM36M1 compatible with the most advanced and cost-efficient technologies ... GSM/GPRS/4G LTE: LTE bands: FDD-LTE: B1/ B2/ B3/ B4/ B5/ B8/ B12/ B13/ B18/B19/ B20/ B26/ B28 TDD-LTE: B39 (for Cat.M1 only) GSM/GPRS bands: 850/900/1800/1900MHz: Data transfer: GPRS and EDGE class 12: Data support: SMS (text/data) POWER: Input voltage range: 10 - 30 V DC with ...

RS485_Shield-DFRobot

SEN0149 URM06-RS485 Ultrasonic ... DFR0645-G DFR0645-R 4-Digital LED Segment Display Module SKU DFR0646-G DFR0646-R 8-Digital LED Segment Display Module DFR0597 7x71 Flexible RGB LED Matrix DFR0231 NFC Module for Arduino TEL0005 APC220 Radio Data Module TEL0023 BLUETOOH BEE TEL0026 DF-BluetoothV3 Bluetooth module TEL0037 Wireless Programming Module For Arduino TEL0044 DFRduino GPS Shield-LEA ...

SIM7000_Arduino_NB-IoT_LTE_GPRS_Expansion_Shield_SKU ...

SEN0149 URM06-RS485 Ultrasonic ... DFR0645-G DFR0645-R 4-Digital LED Segment Display Module SKU DFR0646-G DFR0646-R 8-Digital LED Segment Display Module DFR0597 7x71 Flexible RGB LED Matrix DFR0231 NFC Module for Arduino TEL0005 APC220 Radio Data Module TEL0023 BLUETOOH BEE TEL0026 DF-BluetoothV3 Bluetooth module TEL0037 Wireless Programming Module For Arduino TEL0044 DFRduino GPS Shield-LEA ...

e-Paper IoT Driver HAT for Raspberry Pi, Supports NB-IoT ...

Communication interface: UART + SPI (4-wire SPI by default, switch to 3-wire SPI by soldering) Communication module: SIM7000E Quad-Band LTE-FDD B3/B8/B20/B28; GPRS/EDGE 900/1800Mhz; GNSS (GPS, GLONASS, BeiDou, and Galileo, GNSS antenna is required and NOT included) Support SIM card: NB-IoT specific card, or 1.8V/3V normal SIM card

TR321 Industrial 2-Port Router - 4G&LTE-M/NB-IoT - Bivocom

TR321 compatible with 4G LTE, and LTE CAT M1/NB-IoT, to meet your needs for data speed and bandwidth, as well as your budget for low cost router. Its compact design is easy for embedding into enclosure of onsite device, with wall mount or Din-rail mount, easy and flexible to install.

NiTwo - Nb Iot Module, Mqtt Relay Module, Network Wi-Fi Iot

Nitwo focus on Network Wi-Fi IOT, PLC CPU-Expand, Modbus DO DI AO AI, Temperature Humidity, RS485 Relay module, Electronic Development, WIFI relay module, 4G industrial router, 4G wireless router, NBiot module, MQTT relay module, 4G DTU, Lora module, GPRS DTU, GPRS control module, 2G module, serial to WIFI module, wireless serial port server, wireless Modbus module, widely used in data ...

RS485 GSM GPRS Modem, RS485 to GPRS - USRIOT

3.Support GSM/GPRS and 2G/3G/4G card, but don't support 3G/4G network. 4.Support SMS transmission mode, network transmission mode and HTTPD mode. Introduction. This is a RS485 to gprs modem,used for data transparent transmission. USR-GPRS232-734 GPRS DTU (Data Transfer unit) is a wireless terminal equipment which can convert serial data to IP data or convert IP data to serial data through gprs ...

Raspberry Pi GPS Ortungs- / Navigationsgerät bauen

Mittlerweile hat jedes Smartphone GPS, aber auch der Pi kann mit einem günstigen Raspberry Pi GPS Modul in einen GPS Empfänger verwandelt werden. In vielen Outdoor-Anwendungen, vor allem solchen die sich bewegen (Car-PC, Wetterballon, etc.) ist die genaue Position ein größer Vorteil. Mobilität wird mit einem Akkupack bzw. einer USB Powerbank erreicht.

Dragino NB-IoT Shield – Myduino

The NB-IoT Shield is loaded with offshore NB-IoT module. include: Nb-IoT Bee QB05, QB08, QB20, they use Quectel BC95-B5 /B8 and B20 module. The module is designed for only use in NB-IoT network. and difference suffix reference to different NB-IoT Band. (These modules are discontinue. recommend to use NB-IoT Bee 95G as replacement)

FMM640 - CAT M1 Bluetooth dual SIM GPS Tracker | Teltonika GPS

Description. Teltonika FMM640 is PROFESSIONAL worldwide tracker with LTE CAT M1, NB IoT connectivity, that makes this device usable with newest and most cost efficient technologies. FMM640 features like FMS CAN data (J1939), fuel CAN data (J1708), tachograph live data (K-line), remote tachograph file download, various third party RS232 or RS485 devices support and Dual-SIM will maximize your ...

LibStock - 5G NB IoT click

5G NB IoT Click is a Click board™ based on Gemalto's Cinterion ENS22 NB-IoT Wireless Module platform that boosts highly efficient future 5G connectivity for the IoT.

Air temperature and humidity CO2 three parameters3 in 1 ...

NB-IoT. SigFox. ZigBee Solutions. LoRa Solutions. Catalog . Air temperature and humidity CO2 three parameters3 in 1 RS485 wifi gprs lora lorawan compact Micrometeorology weather station. Measurement parameters Parameters name Air temperature, Air relative humidity,CO2 3 IN 1 sensor Parameters Measure range Resolution Accurancy Air temperature-40-120 0.1 ±0.2 25 Air relative humidity 0-100%RH ...

UART TTL to RS485 Converter - OpenHacks | Open Source Hardware

Conversor UART TTL a RS485. The module is fully consider the 485 mine design and anti-jamming design, in the field for long distance transmission, it will block the "earthed" side to earth, can play the role of a good anti-jamming and lightning protection, make 485 more secure; you can not connect with the earth indoor short-distance transmission.

HF2111A GSM/GPRS Serial Device Server Module supports RS232/RS485 to GPRS 850/900/1800/1900MHz

3.5 inch TFT LCD Display Monitor with CPU + Touch Screen + RS232/ RS485/ USB Port 100PCS

HMI Device 7 Inch LCD 800*480 Touch Screen With RS232 / RS485 / TTL

7.0 TFT LCD Touch Monitor Replacement Screen With RS232/RS485/TTL Port

4.3 Inch LCD Touch Screen HMI with RS232 RS485 TTL MCU Interface + Software

STONE 10.1 Inch HMI TFT LCD Touch Screen with RS232/RS485/TTL for Equipment Use

10.1 Inch HMI TFT LCD Screen STONE Panel with RS232/RS485/TTL Interface

10.1 Display Module TFT LCD Touch Screen With RS485 Port In Elevator System

Display Monitor 5 Inch LCD With Touch Screen And RS485 Inteface

Programmable TFT LCD 7 Inch Touch Screen with RS232/RS485/TTL /USB for Medical Use

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