temperature (VR002T):
ranges: 3 ranges – selectable with switch (-32°/0°C), (0°/32°C), (32°/64°C)
output: 0 to 3.3 V
power supply: 5 VDC
2 x light (VR002L):
ranges: 3 ranges – selectable with switch
output: 0 to 3.3 V
power supply: 5 VDC
sound (VR002S):
sensitivity: adjustable with trimmer
output: 0 to 3 V
power supply: 5 VDC
