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Price
$9.23
DollaTek 12V 2-Channel WiFi Relay Module — image 1
Electromechanical RelaysDollaTek✓ In stock

DollaTek 12V 2-Channel WiFi Relay Module

$9.23
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About this item
  • On-board N76E003/STM8S003 and ESP-01 WIFI module
  • Mode 1: Cell phones carry on the wifi module directly Mode 2: Cell phone and wifi module carry on the same router Additional function: As an USB relay module when unplug the ESP-01
  • In the open environment, the maximum transmission distance is 100m when the cell phone carry on the wifi module directly ;
  • When the wifi module and cell phone carrying on the same router ,the transmission distance depend on the router’s signal intensity; Use Smartconfig technology of ESP8266 to configurate the password for the ESP-01 module with APP
  • On-board 12V, 10 A / 250 v AC 10 A / 30 v DC relay, absorb 100000 times continuously, Module with diode effusion protection, short response time On-board model selection and working position indicator LED On-board preserved UART debug interface and MCU program interface
Product description

Interface and sources IN+、 IN-:12V power input TX、 RX: UART communication SWIM、 NRST:MCU program interface S1:Mode selection key, default is mode 1 S2:Restore key Package Included: 1x 12V 2-Channel WIFI Relay Module Installation note: LED D2 and D4(red):Relay indicator LED D7(red): Mode 1 indicator LED D5(blue): Mode 2 indicator LED D6(green):Working state indicator,the description of D6 as below (1)It’s means internal self-configuration or lost connection with the router when D6 off (2)It’s means the ESP-01 are waiting for the APP configurate the password for it when D6 fast blink every 0.5S (3)It’s means the whole configuration is done and waiting for establishing TCP connection with APP when D6 slow blink every 2S (4) It’s means the TCP connection between ESP-01 and APP is OK when D6 on all the time. "

Product details
Brand
DollaTek
Manufacturer
DollaTek

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What customers say about Bigamart

10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
Excellent
4.5 average rating
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S
Sigalit
🇮🇱 · January 2026

I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
🇦🇺 · November 2025

The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

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