... on the picture.3. Testing distance: In shield type: 5mm(LM18), 7mm(LM22), 8mm(LM24), 10mm(LM30); In unshiedl type: ... : DC<15mA, AC<10mA.7. Standard testing object(mm): 18x18x1iron(LM18), 22x22x1iron(LM22), 24x24x1iron(LM24), 30x30x1iron(LM30).8. Repeated accuracy: 0 ... . 02(LM18), 0. 05(LM22, LM24, LM30)9. Response frequency: 200Hz/25Hz ...