how to make buzzer alarm

... door and metal door.Special antresidual magnetism designed the access control automation safer and electric lock more durable. Specification...

... COSTS R210 Remote Particle Sensor is similar with TSI Particle Counter It's an instrument with high quality and long-life pump.It it easier ...

12v Pin type Piezoelectric / Piezo Buzzer D23xH16mm external Drive Without Circuit We also can make uncommon product per customers requirements. Typic...

Garment Industrial Needle Probe Iron Instrument Smart Needle Scanner Detecting the ferrous metal that load or drop in raw materials and p...

60W Power Foot Switch Upper Circular Blade And Bottom Linear Blade Features: It rapidly cuts regardless of quantity, making it highly economical. Both...

Product Description YT-98H/YT-98H-A Fixed Gas Detector YT-98H is a built-in pump-suction single & multi gas detector,with IECEx, ATEX certificate and ...

... magnetic surface mount pin type high db As this product is not protected from foreign material entering, please sure that ...

... time for a task or activity. or : The or function is used to signal the end of the set time period. The or s...

Mini piezo buzzer with wire 17mm Small size ultra-thin 1704 5v AC 80dB passive piezo buzzer Beep buzzer PS:Cable lenght can make as your reqeust. Cust...

... it on the wall. The minimalist design it a perfect fit anywhere in the home. Built-in Siren & Built-in 115-decibel siren & , th...

...short). Typical uses of include devices , timers, and confirmation of user input such as a mouse click or keystroke. Piezo is ...

... The Electric Bike Intelligent WP-100 is a smart dashboard for simple electric bike, driving electric bike, demolition electric bike, and scoo...

...trucks 2.Eliminates blind spots on the rear-side areas of vehicle 3. lane-changing safer 4.High-speed frequency sensors for the left-rear and ...

... at start-up; 3.The product scan sounds when detected metals ,which help to find the target objectives wanted quickly; 4.Low power fu...

... 220 V AC Frequency 50/60 Hz Operating Temperature 0 to 50o C Display 7' color LCD touch screen Standard ,...