Photoelectric Amplifier are been equipped by a wide range of single channel amplifiers that are used by a remote photoelectric sensors through which beam or diffuse proximity takes places by conjunction. Applications with contaminated environments have amplifiers that provide high penetration power. Sensing ranges of about 70m through beam and 5m in diffuse proximity are been in series of sensing ranges. Every photoelectric amplifiers are been enclosed with 11 - poles DIN socket connections. Both AC and DC can be selected and output can be between transistor or relay output.Switch functions of light or dark and long and short ranges.