... Door Lock HF-LA701 is a password fingerprint lock with stainless steel surface. Fingerprint Door Lock HF-LA701 Operating temperature range:-10-50 centigrade Structure Features:steel lock ... layered protection, durable stainless steel handles, corrosion-resistant, non-color standard lock body, General, reliable ... use, etc.suitable for mood door or mul-door Technical Specification:power supply: AA ...