HC-05 4pin Bluetooth Module ( Master + Slave ) No Button


HC-05 Bluetooth Module 4 pin with Master and Slave functionality


Product Weight 15 gms
Product Dimensions 70mm(L)*30mm(W)*10mm(H)
Bluetooth version V2.0+EDR
Operating voltage 3.3V
Host Interface  UART
Storage Temperature -40 C ~ +150 C
Signal coverage 30ft

Small size, low power consumption, and high sensitivity for sending and receiving data.

The module is mainly used for short-range data wireless transmission, such as Bluetooth wireless data transmission, Industrial remote control, telemetry, traffic, underground positioning, alarm, Smart home etc. It can also be used as Industrial serial port Bluetooth, Drop-in replacement for wired serial connections. You can use it simply for a serial port replacement to establish connection between MCU and GPS, PC to your embedded project and etc.

Note: Default pairing code is 1234

Additional information

Weight 60 g
Dimensions 160 × 100 × 40 mm

OpzLab Technologies (OPC) Private Limited

Brand Name





15 days Replacement Warranty