... SMT, 0.2 grade designed CE Multi Channels , pressure indicator Universal or single signal inputSize: 72*72* ... industry application for temperature, humidity, pressure, level, flow, weight etcFeatures:muti channels measurement and display, with muti meters' ... select 5VDC, 12VDC, 24VDC power supply for the sensor and transmitterCould select RS232 printing interface, directly connect mini printer ...