ReviewsMechanical Buzzer

10pcs DC 3V Active Buzzer Alarm Electromagnetic Beeper Active Piezo Buzzers Alarm Industrial Sounder 9x6mm/9x5.5mm

Type:5V Electromagnetic Active Buzzer, Material: ABS.
Rated Voltage: 5V, Operating Voltage: 4-8V, Rated Current (MAX): 30mA, Min Sound Output At 10cm: 85 dB, Resonant Frequency: 2300 +/- 300 Hz..
Uses: Active buzzer need only on the DC will beep,active buzzer internal oscillator..
High Quality: All multi-chip integrated circuits using gold wire ball bonding, complex production process, long life, stable performance, high rate of qualified products..
Package content:12pcs Electromagnetic Active Buzzer..

? Buzzer alarm button with light and sound tips. Increase the fun of the game, easy to use..
? Simply press the red buzzer to make it light up, it will buzz loudly..
? Actively encourage contestants to join in the competition with this buzzer. Response buzzers let competitors easily buzz when they have an answer..
? Powered by 4 x AA batteries(Not included in it). You will get a buzzer button with light and sound..
Size: app.11x9.7x12.2cm/4.33x3.82x4.8in(LxWxH).

With the built-in battery, it can work as a standard buzzer that controlled by transmitter or standalone buzzer that beeps loudly after the main battery has been ejected..
Super loudly that the volume can reach up to 110 dB..
The LED can flash automatically when the built-in light sensor detects the light darkness..
Two ways to disarm the buzzer, via the switcher on the buzzer or plug-in-out the quad battery..
Be compatible with both FPV quadcopter and RC Airplane..

Buzzer alarm button with light and sound tips. Increase the fun of the game, easy to use..
Actively encourage contestants to join in the competition with this buzzer. Response buzzers let competitors easily buzz when they have an answer..
Size: app.11x9.7x12.2 cm/4.33x3.82x4.8 in (L x W x H)..
Excellent for a funny prank, office desk gadget, gag gifts game buzzer, and can be Party Contest Prop Toy for Family, School, Friends Party..
Package includes: 4 x Game Answer Buzzer. Powered by 2 x AA batteries each (Not included)..

-iFlight fpv finder buzzer built in battery,it can automatically alarm, sound over 100db, which make it easy to find your drone..
-With dual LED, much brighter,easier to find your drone in the darkness..
-Mini upgrade version, lightweight and with smaller size of 18*17*15mm suit for 3-5inch fpv drone.
-The drone buzzer is compatible with traditional active buzzer, and all BF/CF flight controls.
-How to disarm the buzzer : disconnect main battery, hold disarm button on YR50B_S for 1-5 seconds then release..

Quality Component: Professional design, designed with a compass for easier and quicker tuning. Powered by the receiver, nice tool for campers..
Easy To Use: With an electronic buzzer, easy operation, LCD with backlight to show the satellite signal..
Accurate Measurement: This professional digital satellite detector is much more accurate than any other measuring equipment of its kind..
Useful Tool: Connect your LNB and receiver to the satellite finder to track the clearest setting for the satellite you wish to tune to..
Signal Alarm Buzzer: Built in 0Hz, 22KHz, 13V, 18V signal alarm buzzer, buzzer and damping control..

...s how to program, and how to assemble and control robot car step by step. You can follow the tutorial and gradually become a master..
GROWS WITH YOU – OSOYOO Robot Car Kit for Arduino is a perfect gift for your who are interested in programming, robotics, electronics, or mechanical design as it can improve logical thinking, mechanical, and electrical abilities of your and let your learn how to build and program fully-functional robots.

Retekess T113 restaurant buzzer system used for remind customer to get their food and no longer to looking for customers.
Each restaurant buzzer has built-in rechargeable lithium battery and the restaurant waiting buzzers can work about 12 hours.
Working distance is about 500m or 1640ft at open area.
Each mode is accompanied by the LED flashing.
The restaurant pager system can call up to 98 restaurant buzzers.

A perfect tool for quieter students - buzzers are loud enough to get the attention of the class.
Set includes 4 recordable buzzers in 4 colors and activity guide.
Ideal for ages 3+DescriptionEngage even non-verbal students in classroom activities they can tap in with their own recorded sounds. Record up to 7 seconds per buzzer.
just tap, record, tap, and listen. 4 buzzers come in 4 colors and include activity guide.

【Preset Mode】 (Upgrade) This torque wrench adds a preset mode, which can preset 6 sets of values in advance. Frequently used values are set for each section, which is convenient even when switching to adjacent values. For bicycles, motorcycles and mechanical equipment, etc..
【Memory Mode】 This digital torque wrench provides Track and Peak modes. In Track mode, a balanced force can be applied by changing the value of the display. Added 500 sets of data storage function, the torque value generated will be recorded in Peak mode, which is convenient for you to check at any time..
【Measurement Mode】The electric torque wrench has four measurement modes: kg-cm, Nm, in-lb, ft-lb. Only need simple operation, you can clearly see the numerical conversion between the measurement units through the display screen. It will meet the switching use between the measurement units according to different situations..
【Reminder Mode】 When using the 3/8 drive torque wrench to reach the preset torque value, a rapid buzzer will sound, and the LED light will change from a flashing green light to a solid red light. The reminder can effectively avoid screw damage caused by excessive force..
【Quick release and high precision】This small torque wrench can easily and....