Search query: portable door lock travel lock

Product: Master Lock 265D Door Security Bar, Adjustable from 27-1/2 in. to 42 in., White Heavy duty, dual-function door security bar prevents forced entry on hinged, patio, and sliding doors; Door stopper security bar is intended for indoor use
Door security bar design is portable and compact making it easy to store and ideal for travel, providing enhanced security in hotels or on vacation
Adjusts from 27-1/2 inch (70cm) - 42 inch (1.1m) to fit most standard doors and sliding patio doors. Top door knob jam is easily removed for sliding door applications
Made with heavy duty 20-gauge steel for strength and security; Pivoting ball joint ensures door security bar has full contact with floor for secure fit while padded foot provides a strong grip without scratching
No tools required, simply adjust the bar length using the release button, prop under door knob and easily adjusted as needed Master Lock White

Product: Upgraded Door Stop Alarm -Great for Traveling Security Door Stopper Doorstop Safety Tools for Home They might pick your lock but they cannot get inside your hotel room, apartment, or home when secured by the Super Stop Alarm.
With box package which protect the product well
Battery Installation:
Make sure the on/off switch is in the "off" position. Turn the unit upside down and open the battery compartment Install one 9-volt battery (not included) and close the compartment.
The on/off switch will prevent the unit from accidentally sounding. Requires one 9 volt battery - not included
Note:
The gap between door bottom and floor should be 1 - 3.5cm This is an upgrade door stop than others.It is more durable than others with better quality.
3 Sensitivity Levels - Low - Medium - High, with an adjustable sensitivity switch on the side.
Very loud shrill that would definitely scare someone away with 120db alarm. Weight: 128g
You can use it as common door stopper when turn down the ON/OFF switch,hold door in open position.
No installation required. Requires one 9 volt battery(Not include).Portable and easy way to add piece of mind when traveling or working alone. FEENM Black

Product: SABRE HS-DSA Wedge Door Stop Security Alarm with 120 dB Siren --- Great for Home, Travel, Apartment or Dorm ATTENTION-GRABBING – when door pressure is applied, the extremely loud 120 dB alarm helps wake/alert homeowner or renter, helps deter intruder and possibly notifies neighbors (audible up to 1,000 feet/300M away)
VERSATILE WITH MAXIMUM SECURITY – features a non-skid pad to prevent door from opening while alarm sounds; ideal for bedrooms, hotels, apartments, dorm rooms, front doors, etc. - great travel alarm
ATTRACTIVE & CONSUMER-PREFERRED – superior to other home security products, this premium white alarm looks great inside your home
EASY INSTALLATION – no wiring needed; battery-operated (requires 1x9V battery); small screwdriver required to remove battery compartment cover
EXTRA LEVEL OF SECURITY – provides battery status update with a low battery indicator SABRE Security Wedge Door Stop (White)