Table 3.

Technical specifications of the sensors selected for the device.

Component	Characteristics	Description
Thermocouple Type-K	- Precision: ±1 ºC - Output range: −6 to 20 mV	Glass braid insulated stainless steel tip which can be used in high temperature.
Heart Rate Monitor Sensor	- Input Voltage (Vin): 3.3–6 V (5 V recommended) - Output Voltage: 0–Vin (Analog), 0/Vin (Digital) - Operating current: <10 mA	It is based on PPG techniques, to detect blood volume changing in the microvascular bed of tissues
BMI160 Inertial sensor (IMU)	- Sensitivity (typ.) Acc. ±2 g:16,384 LSB/g, ±4 g:8192 LSB/g, ±8 g:4096 LSB/g, ±16 g:2048 LSB/g - Sensitivity (typ.) Gyro. ±125º/s:262.4 LSB/º/s, ±250º/s:131.2 LSB/º/s, ±500º/s:65.6 LSB/º/s - TCS (typ.) (A): ±0.03%/K (G): ±0.02%/K - Nonlinearity (typ.) (A): 0.5%FS (G): 0.1 %FS - Offset (typ.) (A): ±40 mg (G): ±3º/s - TCO (typ.) (A): ±1.0 mg/K (G): 0.05º/s/K	It is an inertial measurement unit (IMU) consisting of a state-of-art 3 axis, low-g accelerometer, and a low power 3 axis gyroscope.
Square Force-Sensitive Resistor (FSR)	- Actuation Force ∼0.2 N min - Force Sensitivity Range: ∼0.2 N–20 N - Force Repeatability Single Part +/− 2% - Force Repeatability Part to Part +/− 6% (Single Batch)	FSRs are sensors that allow to detect physical pressure, squeezing, and weight.