
The Weightech WTBT-BR Complete (SKU wtbt, factory code 504335) reads up to four load cells and sends the weight by Bluetooth to an Android phone running the free calibration and weighing apps. It has a built-in rechargeable battery, a cattle weighing function and two RS232 serial ports for an ear-tag reader and a remote display.
Serial 1 connects an ear-tag reader. Serial 2 connects the DRWT-75, DRWT-125 and DRWT-200 remote displays and the WT-Display.
A cattle scale function for livestock weighing, with auto-zero and adjustable digital filters.
Three LEDs indicate low charge (battery), Bluetooth connection and calibration.
Calibrate and configure the transmitter with the free WT-BT-BR Cal and Android apps.
This SKU is the WTBT-BR Complete (code 504335), with an internal rechargeable 12 VDC 4400 mAh battery and a charger (100–240 VAC input, 12.6 VDC 1 A output). The WTBT-BR Compact (code 506071) is a different, smaller model powered from an 8–13 VDC supply and is not this product.
Cattle scales with an RFID ear-tag reader and a remote display, with the weight also sent over Bluetooth to a phone, as in the datasheet's application example. Also used where cabling between load cells and the data device is difficult, such as farms, road yards and on-board weighing.
| Brand / model | Weightech WTBT-BR Complete |
| SKU / factory code | wtbt / 504335 |
| Load cells | Up to 4 |
| Load cell connector | 7-pin female: I+, I-, E-, S-, S+, E+, BLD |
| A/D input range | -0.1 to 4.0 mV/V |
| Excitation voltage | 5 VDC |
| Conversion rate | 30 to 480 samples per second |
| Internal resolution | 1/1,000,000 |
| Serial ports | 2 x RS232: Serial 1 (ear-tag reader), Serial 2 (remote displays), 4-pin RX/TX/GND |
| Wireless | Bluetooth, to Android apps |
| Internal battery | Rechargeable, 12 VDC 4400 mAh |
| Charger | Input 100-240 VAC, output 12.6 VDC 1 A, 7-pin connector |
| Internal electronics supply | 8-13 VDC |
| Indicators | 3 LEDs: low charge, Bluetooth connection, calibration |
| Operating temperature | -10 to +40 C |
| Protection | IP65 |
| Housing material | Polycarbonate |
| Dimensions | 120 x 122 x 88 mm (4.7 x 4.8 x 3.4 in); 152 mm over cable glands |
| Mounting holes | 90 x 110 mm |
| Product | Order code |
|---|---|
| Weightech WTBT-BR Complete Bluetooth weighing transmitter (factory code 504335) | wtbt |
Low charge (battery), Bluetooth connection and calibration.
Yes. The Complete model has an internal rechargeable 12 VDC 4400 mAh battery and comes with a charger.
Serial 1 takes an ear-tag reader; Serial 2 takes remote displays such as the DRWT-75, DRWT-125, DRWT-200 and WT-Display.

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Email SalesView DatasheetCall +1 (954) 666-0877 × 305| Protection class | IP65 |
|---|---|
| Material | Plastic |
| Input power supply | Input: 100 - 240 VAC | Output: 12.6 VDC 1A |
| Internal Battery | Yes, 12 VDC 4400 mAh |
| Manufacturer | WeightechUSA |
| Short name | WTBT-BR Weighing Transmitter |