ʻO ka HY-4 Smart Lock kahi hopena palekana home hana kiʻekiʻe e hōʻike ana i ka hoʻopau nickel sleek a me ka hana zinc alloy lōʻihi no ka hoʻohana lōʻihi. ʻO ka papa mua he 161.5 × 73.3 × 30 mm, a ʻo ka panel hope he 168.5 × 72.5 × 51.2 mm, kūpono no nā puka lāʻau a me ka metala me ka mānoanoa o 35mm a 55mm. Hoʻolako ʻia me kahi sensor manamana lima semiconductor, kākoʻo ʻo ia a hiki i 50 mau manamana lima me ka helu ʻae wahaheʻe ma lalo o 0.001%, e hāʻawi ana i ka ʻoluʻolu a me ka palekana i hoʻonui ʻia.

Hiki i ka HY-4 ke hoʻokomo i ka ʻōlelo huna o 6 a 16 mau huahelu, hiki ke hoʻopaʻa ʻia a hiki i 100 mau huaʻōlelo, me kahi hiʻohiʻona code virtual no ka pale hou. Ma waho aʻe o nā kī kī capacitive, hele mai ia me ʻelua mau kī mechanical i mea hoʻihoʻi no nā ulia pōpilikia. Hoʻohana ʻia e ʻehā mau pākahi AA, he 10 mau mahina ke ola. Hoʻopili me ka maʻamau ANSI BHMA A156.25, hana ia ma kahi ʻano wela o -35 ℃ a + 70 ℃, hiki ke hoʻololi ʻia i nā ʻano like ʻole. Wehe koke ka HY-4 i 1 kekona wale nō, e hāʻawi ana i kahi ʻike mea hoʻohana palekana, maʻalahi, a maikaʻi hoʻi.