Germany P + F Sensor 
 Pepperl + Fuchs, Germany P + F Company (PEPPERL + FUCHS), founded in 1946, is the most famous of the world's largest professional company of sensors. 
 P + F in Germany in 1962, the company introduced to the world since the first generation of proximity switches, photoelectric sensor has been switches, proximity switches, 
 Ultrasonic switches, level switches, pressure switches, safety barrier, 12,000 kinds of products, common models: 

 NBB5-18GM50-E0 NBB5-18GM50-E2 OBT200-18GM70-E5 Germany P + F Sensor 

 NBB5-12GM50-E0 NBB5-18GM50-E2 OBT200-18GM60-E5 

 NBN15-30GM50-E2 NBN15-30GM50-E0 OBT400-F28-E5 

 NJ15 + U1 + E2 NJ20 + U1 + E2 NJ30 + U1 + E2 NBB20-L2-E2-V1 Germany P + F Sensor 

 NBN4-12GM50-E0-V1 NBN4-12GM50-E2-V1 V1-W 

 NBN4-18GM50-E0-V1 NBN4-18GM50-E2-V1 V1-G Germany P + F Sensor 

 OBT200-18GM70-E4 OBT200-18GM60-E4 OBT400-F28-E4 

 RL39-8-800/30/40A/116/126A 

 RL39-8-800/32/40A/82A/116 

 RLK39-54/31/40A/116 

 RLK39-54-Z/31/40A/116