I bought some Industrial Wireless Vibration And Temperature Sensor (SKU: PR52-33E). They are excellent sensors. However, I did not see any inputs for an external power supply. However, I did see what appears to be a two-wire terminal block near the batteries (see picture). My question is this: Can this terminal block be used for an external power supply? If so, what is the accepted voltage? Does all sensors in the industrial line of product offer this option? This information is important for my clients who want to read data at high frequency.