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Industrial Dual DS18B20 RS485 Modbus RTU Temperature Module, 5-24V DC, for Smart Home Thermostat & IO
$18.41
Sale price
$18.41
Regular price
$0.00
Description
SPECIFICATIONS
Brand Name: eletechsup
Certification: NONE
Choice: yes
High-concerned chemical: none
Model Number: N4DSA02
Origin: Mainland China
Output Current: 7MA
Output Frequency: 1200-115200BPS
Output Type: SINGLE
Size: 25.8 X 15.2 X 3.5MM
Type: DC/DC Converters
Weight: 1.8g
is_customized: Yes
semi_Choice: yes
N4DSA02 is a 2-channel DS18B20 Modbus adapter newly designed by eletechsup. It can directly replace R46CA01. It not only fixes the BUG of R46CA01, but also adds an extra channel and more register configuration functions. It is a DS18B20 adapter with high cost performance.
Description :
Working voltage: Power Supply 1 DC 6-25V; Power Supply 2 DC 3.7-5V
Working current: 6-7MA
Number of acquisition channels: 2 channels
MODBUS RTU protocol, 03, 04 read commands, 06, 16 write commands.
Serial port baud rate: 9600 (default), 1200-115200,N, 8, 1
By modifying the RS485 address, up to 247 modules can be cascaded (more than 16 please use R485 repeater)
Adapted sensor: DS18B20 Temperature Sensor
Temperature measurement range: -55°C to +125°C(-67°F to +257°F)
Size: 25.8 X 15.2 X 3.5MM(No Pin),25.8 X 15.2 X 11MM(With Pin)
Weight: 1.8g(No Pin),2.4g(With Pin)
MODBUS RTU Command :
''N4DSA02 N4DSB03 MODBUS RTU Command (OLD)'',Compatible with R46CA01 Command
''N4DSA02 N4DSB03 MODBUS RTU Command (NEW)'',New users are advised to use new commands
The recommended lead length for DS18B20 is within 15 meters.
The recommended RS485 bus length is within 100 meters.
If communication fails, please short the RES jumper for 5 seconds to restore the factory settings.
Typical application:
Thermostatic Controls
Industrial Systems
Consumer Products
Thermally Sensitive Systems
Indoor and outdoor temperature measurement
Temperature in vegetable garden
Weather forecasting, and monitoring
Temperature in Computer Room
Warehouse temperature
Paperless recorder
PLC analog expansion board

Working current: 6-7MA
Number of acquisition channels: 2 channels
MODBUS RTU protocol, 03, 04 read commands, 06, 16 write commands.
Serial port baud rate: 9600 (default), 1200-115200,N, 8, 1
By modifying the RS485 address, up to 247 modules can be cascaded (more than 16 please use R485 repeater)
Adapted sensor: DS18B20 Temperature Sensor
Temperature measurement range: -55°C to +125°C(-67°F to +257°F)
Size: 25.8 X 15.2 X 3.5MM(No Pin),25.8 X 15.2 X 11MM(With Pin)
Weight: 1.8g(No Pin),2.4g(With Pin)
MODBUS RTU Command :
''N4DSA02 N4DSB03 MODBUS RTU Command (OLD)'',Compatible with R46CA01 Command
''N4DSA02 N4DSB03 MODBUS RTU Command (NEW)'',New users are advised to use new commands
The recommended lead length for DS18B20 is within 15 meters.
The recommended RS485 bus length is within 100 meters.
If communication fails, please short the RES jumper for 5 seconds to restore the factory settings.
Typical application:
Thermostatic Controls
Industrial Systems
Consumer Products
Thermally Sensitive Systems
Indoor and outdoor temperature measurement
Temperature in vegetable garden
Weather forecasting, and monitoring
Temperature in Computer Room
Warehouse temperature
Paperless recorder
PLC analog expansion board

Free Shipping Over $199
- Standard Shipping: Standard Shipping (12–18 Business Days)
- Express Shipping: Expedited Shipping (5–9 Business Days)
- Free Shipping: Orders over $199 qualify automatically
- Tracking: Full tracking number provided for all orders
30-Day Return Policy
- Returns: 30-day hassle-free return window
- Condition: Items must be unused and in original packaging
- Refund: Full refund processed within 3-5 business days
Why Choose Us?
- Factory Direct: ISO/TS 16949 certified manufacturer
- Quality: 100% electrical continuity tested before shipment
- Experience: 15+ years in automotive connector industry
- Support: Professional technical support available
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