I found another technical data on the Sempu:
PUJAM—BB Dual Side Torque Sensor
1.Technical Data:
1 Input Voltage 5(±0.05) VDC
2 Input Current <60 mA
3 Max output power <300 mW
4 Reference Voltage V0 1.5 (±0.05) V
5 Zero drift @(-20°C +50°C)V0±0.05 V
6 Torque output sensitivity 14.7 mV/N.M...