PZ-15238
3.5g analog servo(without ears)
weight:3.5g
size(L*w*H):19.2*8.4*19.8mm
speed: 0.08s/60°-4.8v, 0.06s/60°-6.0v
torque:0.15kg*cm-4.8v, 0.20kg*cm-6.0v
coreless motor
pom gear

pz-1238A
3.5g analog servo(with ears)
weight:3.5g
size(L*w*H):19.2*8.4*19.8mm
speed: 0.08s/60°-4.8v, 0.06s/60°-6.0v
torque:0.15kg*cm-4.8v, 0.20kg*cm-6.0v
coreless motor
pom gear

[Torque Test Method]   Load rated weight at the hole of servo arm 1cm from central of rudder horn vertically,Clockwise 10 times and Counter Clockwise 10 times, the Operating travelon load shouldn't be 10 degree less than operating travel at no load.
[Speed Test Method]   The time of servo horn traveling  60 degree at no loaded.