YH20AU-4S YH20AA-7S lowest Zhejiang 
 YH20AA-4S YH20AU-4S YH20AA-7S 
 YH20AU-7S YH20AA-9S YH20AU-9S 
 YH20AA-9ST YH20AU-9ST YH20P-9S 
 YH20Q-9S YH20F-9S YH20PF-9S 
 YH20AA-9S3 YH20AU-9S3 YH20AA-9S3B 
 YH20AU-9S3B H20AA-9S3T YH20AU-9S3T 
 YH20AW-9S3 YH20AW-9S3T YH20AA-6S3 
 YH20AU-6S3 H20AA-5S3 YH20AU-5S3 
 YH2010 YH2010E 


 AC single-phase digital ammeter YH20AA-4S 46 × 46 
 AC single-phase digital voltmeter YH20AU-4S 46 × 46 
 AC single-phase digital ammeter YH20AA-7S 77 × 77 
 AC single-phase digital voltmeter YH20AU-7S 77 × 77 
 AC single-phase digital ammeter YH20AA-9S 91 × 45 
 AC single-phase digital voltmeter YH20AU-9S 91 × 45 
 Single digital display AC ammeter (R485, transmission) YH20AA-9ST 91 × 45 
 Single digital AC voltage meter (R485, transmission) YH20AU-9ST 91 × 45 
 Active form YH20P-9S 91 × 45 
 Reactive power meter YH20Q-9S 91 × 45 
 Frequency table YH20F-9S 91 × 45 
 Power factor meter YH20PF-9S 91 × 45 
 Three digital display AC ammeter YH20AA-9S3 92 × 92 
 Three digital AC voltage meter YH20AU-9S3 92 × 92 
 Three digital display AC ammeter (transmission) YH20AA-9S3B 92 × 92 
 Three digital AC voltage meter (transmission) YH20AU-9S3B 92 × 92 
 Three digital display AC ammeter (communication) YH20AA-9S3T 92 × 92 
 Three digital AC voltage meter (communication) YH20AU-9S3T 92 × 92 
 Three-phase power meter YH20AW-9S3 92 × 92 
 Three-phase power meter (communication) YH20AW-9S3T 92 × 92 
 Three digital display AC ammeter YH20AA-6S3 67 × 67 
 Three digital AC voltage meter YH20AU-6S3 67 × 67 
 Three digital display AC ammeter (communication) YH20AA-5S3 67 × 67 
 Three digital AC voltage meter (communication) YH20AU-5S3 67 × 67 
 Multifunction Network Instruments YH2010 85 × 85 
 Network meter YH2010E 92 × 92