HY-4 Smart Lock ndi njira yotetezeka yapanyumba yogwira ntchito kwambiri yokhala ndi nickel yowoneka bwino komanso yolimba ya zinc alloy kuti igwiritsidwe ntchito kwanthawi yayitali. Kutsogolo gulu miyeso 161.5 × 73.3 × 30 mm, ndi gulu kumbuyo 168.5 × 72.5 × 51.2 mm, oyenera muyezo zitseko matabwa ndi zitsulo ndi makulidwe a 35mm kuti 55mm. Yokhala ndi semiconductor chala chala chala, imathandizira mpaka zala zala 50 zovomerezeka zabodza zosakwana 0.001%, zomwe zimapereka mwayi komanso chitetezo chokwanira.

HY-4 imalola kuyika mawu achinsinsi a manambala 6 mpaka 16, osinthika kukhala ndi mapasiwedi mpaka 100, okhala ndi code code yowonjezera chitetezo. Kuphatikiza pa makiyi okhudza capacitive, imabwera ndi makiyi awiri amakina ngati zosunga zobwezeretsera zadzidzidzi. Mothandizidwa ndi mabatire anayi a AA, imakhala ndi moyo pafupifupi miyezi 10. Mogwirizana ndi muyezo wa ANSI BHMA A156.25, umagwira ntchito pa kutentha kwa -35 ℃ mpaka +70 ℃, ndikupangitsa kuti ikhale yogwirizana ndi malo osiyanasiyana. HY-4 imatsegula mwachangu mu sekondi imodzi yokha, ndikupatsa ogwiritsa ntchito otetezeka, osavuta, komanso ogwira ntchito.