For key locks, a small lockbox with the key is essential. It has saved me several trips to let a guest in before I went to code locks. There are some good, sturdy ones that don't use batteries, entirely manual workings. Never failed. Don't use battery powered locks. If the battery fails, you don't have a lockbox key. The manual ones are not expensive. You can find one with a cable or metal loop, so they can be fastened to something permanent that is outside of the house. I've got one like this. It is over 10 years old and works perfectly. ... https://www.amazon.com/Master-Lock-Combination-Portable-5422D/dp/B00BOSMLGS/ref=sr_1_11?adgrpid=186272112133&dib=eyJ2IjoiMSJ9.XQ_nBKhtz0zagL1IZqM13U6mEXmU1blqCSvUYs0rEBfaKmUtHvK47uUrFOEmJY6wzaVUmhnFW1_7inycU3u2S2zA_jY8jTk7hq0mTqCOAWcKK7Gqi8s7DS4RUCX7bZjPQLH746gKE2f3ClDDDAIJpYjdR9ClhmB-cPRpHxup-aksytZV7RwHvzxTV_3I3te0u60dYbUSQffhP6delIIJ9XyD4pG9LgSYKGKZiULPpA54II7wokBP69jbbZd9vJwFcezjp6vOJv0nPIV16hmfsa9VdLuKeUmoxVpRjBxZ7WY.C4qVrGFyjyZApMMHAb-ekZYi8kyf38WXWI8QzIHWePg&dib_tag=se&hvadid=779591800924&hvdev=c&hvexpln=0&hvlocphy=9027697&hvnetw=g&hvocijid=4042525068021076124--&hvqmt=e&hvrand=4042525068021076124&hvtargid=kwd-323150386210&hydadcr=10652_13818636_2096278&keywords=outdoor%2Block%2Bbox%2Bfor%2Bkeys&mcid=a61f4b12b693337e8aaa5a75b0e6173c&qid=1781560711&sr=8-11&th=1
