AT5120 is simialr to At5110 in specification. The same accruay, range and other parameters. The only difference is AT5120 is desiged for 20 channels. it can display the data for 20 channels.  Thanks to its large TFT display, It  can show the data clearly.        

Specification 
*Channel:20 channels 
*Parameter:DC resistance 
*Accuracy:0.05% 
*Measurement Range:1μΩ～30KΩ 
*Signal Source:Max current：<1A 
*Range:Automatic and manual 
*Speed:Fast and low can be adjustable 
*Result Display:20 channels show 
*Max Reading:30,000 
*Adjustment:Short circuit clearing zero for each range 
*Comparator:Set 20 channels independently 
*Trigger:Internal and remote trigger 
*Interface:RS-232C interface （SCPI instruction set(SCPI), Handler (PLC) interface 
*Temperature:Accuracy: 0.2℃, temperature range: 0-80℃ 
*Method:Four-terminal shield for each channel（including 2 detection element and 2 driving element）and other 
*True-color TFT-LCD display, Can set resistance bound Temperature compensation Keyboard lock 
*voltage：198VAC～250VAC frequency：50Hz power：max 15VA 
*Outer size（mm）：264 (width)x107(height)x350 (depth) Inner size：216(width)x88(height)x323(depth) Weight: 4kg 
*Kalvin clip 10 teams, ATL108 232 communication cable 
Feature 
*10 channels resistance scan measurement 
*True-color TFT-LCD display, Can set resistance high/low limit independently 
*Temperature compensation function 
*Keyboard lock function 
Application 
*Multiple winding transformer DC resistance measurement 
*Coil DC resistance measurement 
*Motors Multiple winding resistance measurement