| PartNumber | BTM404 | BTM403 | BTM402 |
| Description | Bluetooth Modules (802.15.1) BISM II W/ POWER AMP 3V TTL 3.3Vcc | Bluetooth Modules (802.15.1) Class1 Bluetooth Serial MODLE 3.3V | RF TXRX MOD BLUETOOTH CHIP ANT |
| Manufacturer | Laird Connectivity | Laird Connectivity | - |
| Product Category | Bluetooth Modules (802.15.1) | Bluetooth Modules (802.15.1) | - |
| Shipping Restrictions | - | ||
| RoHS | Y | Y | - |
| Class | Class 1 | Class 1 | - |
| Protocol | Bluetooth 2.0 | Bluetooth 2.0 | - |
| Data Rate | 300 kb/s | 300 kb/s | - |
| Operating Supply Voltage | 3.3 V | 3.3 V | - |
| Output Power | 17 dBm | 18 dBm | - |
| Minimum Operating Temperature | - 10 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Sensitivity | - 84.5 dBm | - 87 dBm | - |
| Modulation Technique | DTR, DSR, DCD, RI, RTS, CTS | - | - |
| Interface Type | UART | UART | - |
| Antenna | External w/U.FL Connector | Integrated | - |
| Frequency | 2.4 GHz | 2.4 GHz | - |
| Height | 10 mm | 7.6 mm | - |
| Length | 35 mm | 35 mm | - |
| Width | 25 mm | 25 mm | - |
| Brand | Laird Connectivity | Laird Connectivity | - |
| Antenna Connector Type | U.FL | - | - |
| Moisture Sensitive | Yes | Yes | - |
| Product Type | Bluetooth Modules | Bluetooth Modules | - |
| Factory Pack Quantity | 1 | 25 | - |
| Subcategory | Wireless & RF Modules | Wireless & RF Modules | - |
| Version | Bluetooth 2.0 | Bluetooth 2.0 | - |
| Unit Weight | 0.282192 oz | - | - |
| Packaging | - | Tray | - |
| Mounting Style | - | SMD/SMT | - |