LTN德國（LITTON）是德國的編碼器廠商。主要產品有：增量型編碼器、**型編碼器、 防爆型編碼器等。常見型號如下：

 LTN(LITTON)編碼器常用型號: RE-15-1-A14 RE-15-1-A84 RE-15-1-K01 RE-15-1-K09 RE-15-1-V02 RE-15-1-V07 RE-15-3-A14 RE-15-3-D01 RE-15-3-D04 RE-15-4-D04 RE-21-1-A01 RE-21-1-A04 RE-21-1-A05 RE-21-1-B71 RE-21-1-K05 RE-21-1-K06 RE-21-1-V01 RE-21-1-V25 RE-21-1-V32 RE-21-3-A01 RE08-1-A45 RE-21-1-A05 RE-15-1-A14 RE-15-1-V07 RE-15-3-D04 RE-15-1-K01 RE-15-4-D04 RE-21-1-A01 RE-21-1-A06 RE-21-1-A05 RE-21-1-K05 RE-21-3-A03 RE-165-1-C001 R58WVRE151B24-031-07CX R71SSRE211A01-023-07R LTN(LITTON)編碼器常見系列：G24 G36 G58 G1B G71等 。

德國LITTON公司也生產各種解碼器，常見型號有RE-08 RE-10 RE-15 RE-21 GE-165 R58 R71等， 如RE08-1-A45 RE-21-1-A05 RE-15-1-A14 RE-15-1-V07 RE-15-3-D04 RE-15-1-K01 RE-15-4-D04 RE-21-1-A01 RE-21-1-A06 RE-21-1-A05 RE-21-1-K05 RE-21-3-A03 RE-165-1-C001 SH085 SS036 R58WVRE151B24-031-07CXR71SSRE211A01-023-07R1 SWL SM034 SM050 SM070 SM090 SM140 SC040 SC080