Power supply：12-24 VDC, 1 A Working temperature：-20 °C to 50 °C (-4 °F to 122 °F) Working humidity：0 to 95% (relative humidity) Dimensions：90mm × 35 mm × 25 mm (3.39" × 3.39" × 1.01"). Weight：0.14 kg (0.3lb) Material：Panel: stainless steel Door type：All kinds of narrow doorframes Signal output：NO/NC/COM contact Aging Test：Already passed 1 million times aging test