... DC/ACDC<2V, DC(TWO WIRE SYSTEM)<3.9V, AC<10VCURRENT COSUMPTIONDC<15mA, AC<10mASTANDARD DETECTED OBJIECT15×15×1(A3iron)REPEATED PRECISION0.01DC ... /AC RESPONSE GREQUENCY400Hz/25HzWORKING ENCIRONMENT EMPERATURE-25°C~+75°CINSULATION RESISTANCE≥ ...