The Parani-ESD100 is a Bluetooth v2.0+EDR Class1 type Embedded Bluetooth serial module for RS232 cable replacement. The Parani-ESD100 is a compact size Bluetooth serial module with built-in chip antenna. It supports 100 meter of wireless transmit distance. The Parani-ESD100 also supports up to 4 multiple simultaneous connections.

    Output Interface UART, Bluetooth Specification v2.0+EDR
    Transmit Power - Max. 18dBm
    Receiving Sensitivity: -90dBm(0.1%BER)
    Compact size - 27.5 x 30.0 x 14.0 (mm) / 1.08 x 1.18 x 0.55 (in)
    Provides transparent RS232 serial cable replacement.
    Supports up to 4 multiple simultaneous connections.
    Profile: Bluetooth Serial Port Profile.
    Interoperability with PDA, laptops etc.
    on-board chip antenna
    Firmware upgrade via windows-based software (ParaniUpdater)
    Working distance ( In an open field ): Nom. 100 meters
    Easy to use Windows configuration tool available.
    No external drivers required.

Datasheet : https://senatech.box.com/s/0k2rtj9hnkxut7r66mbc3jmuc107zivc
Quick Start : https://senatech.box.com/s/d45lzc155wqai4kdtid6ofbcghkvvu9e
User Manual : https://senatech.box.com/s/yc39irehznifjsuj7g49tdc8u53jv6ny
Bluetooth SIG Guide : https://senatech.box.com/s/qaq6na2zo5d62uux5x5blmjtwhhfgnu4
Firmware
 - Parani-ESD100V2_2.0.6_20120224.img : https://senatech.box.com/s/toml38ukk9fdsib9wpv84wub6xlsvlph
Software
 - setup_ParaniWin-v1.0.7.exe : https://senatech.box.com/s/we8yvk8eczbrl0zh30rh6zl7gq3lx1ns
 - setup_ParaniWizard-v1.0.1.exe : https://senatech.box.com/s/r90ok5sw8nuw2ztimdagrm6aujoc71pn
 - setup_ParaniUpdater-v2.0.1.exe : https://senatech.box.com/s/md4mga86nath3ul6fv2p62hb5xynqp8j
 - SENA BTerm : http://www.senanetworks.com/products/industrial_bluetooth/manage_by_android_phone.php