Description: Gas Leak Tester: Multifunctional gas Tester that can help detect electrical appliances, gas, etc. at home, and is easy to use Material: Gas leak monitor is made of high quality material, durable Easy to Carry: Gas leak tester is small and light, can be carried with you, and can be used for testing indoors, outdoors, and on picnics Sound and Light Alarm: When Gas sniffer detects Leak gas, the screen will turn red and an alarm will be issued to remind you, practical Applicable: Applicable to all types of Leak gases, can accurately locate the leak place, and provide you with protection Size Chart: HT59:15.8cmx2.4cmx2.8cm/6.22inchx0.94inchx1.10inch HT60:17cmx2.3cmx2.8cm/6.69inchx0.91inchx1.10inch Package Includes: 1Gas Leak Tester(without battery) Note: Please allow slightly errors due to manual measurement and different monitors.