Dimension: 6x6x4.3mm/0.24x0.24x0.47 inch | Button Diameter: 3.5mm/0.14inch | Withstand Voltage:AC250V | Rated Load:DC12V 50mA | Used in the fields of electronic products, household or office appliances, sound equipment, digital products, and more

Dimension: 6 x 6 x 4.5mm / 0.24" x 0.24" x 0.18" (L*W*H); Button Dia.: 3.5mm | Great for electronics hobbies & fixing anything that requires a tactile switch | High precision mechanism design offers acute operation and long service life. | These push buttons have an excellent tactile feel and work well as activation devices for microprocessor devices such as Arduino or the PI | These small switches make good contact, snap or click when pressed. The pin placement is perfect for PC boards and bread boards. On bread boards you will need to flatten the legs so they insert properly

【Usage】: One side of teg peltier(with word) is close to the heat dissipating surface (cold end), the non-word side is placed on the heat absorbing surface (hot end), the red line is connected to the positive pole, the black line is connected to the negative pole, and the power can be generated when there is a temperature difference. | 【High Reliability】: SP1848-27145 thermoelectric peltier teg module has no extra moving parts, easy to move, light weight, long life, high reliability and no pollution. | 【Note】: The temperature difference will appear on both sides of the 12 volt power supply cooling chip. When one side is cold and one side is hot, do not energize the refrigerator for a long time without a radiator. Otherwise, the inside of the refrigerator will be overheated or burn. | 【The Principle of Heat Generation】: When the thermal energy is discharged from the low temperature side through the thermoelectric power generation piece, part of the thermal energy flowing into the device does not exotherm, and becomes electric energy in the device, and outputs DC voltage and current. | 【Convenience】：The product has no moving parts, is easy to move, and is convenient for experimentation

The supply voltage is 3.2V~5.5V. (If the module is to be in the transmitting state for a long time, it is recommended to connect a 1N4007 diode in series when the power supply voltage exceeds 4.5V to avoid the built-in LDO heating of the module) | The default communication distance (open field test): about 600m (the communication distance can be adjusted up to 1000m, the air baud rate is 5000bps). | Default idle current: 16MA (module operating current is different in different operating modes). | Operating frequency range (433.4-473.0MHz, up to 100 communication channels), maximum 100mW transmit power (settable) | Default factory setting: working mode FU3, baud rate 9600bps, communication channel CH001 (433.4M).

Great influence on the antenna module reception, preferably connected to the 1/4 wavelength of the antenna, typically 50 ohm single conductor, the length of the antenna 433M of about 17cm; | Note:Antenna position has also affected the reception of the module, the installation, the antenna as possible straight away from the shield, high pressure, and interference source; frequency used to receive, decode and oscillation resistor should match with the transmitter. | Widely use for remote control rolling gates, remote control MP3, remote control LED, remote control audio, smart car, smart home, etc. | Package Content:5 x 433Mhz RF Wireless Transmitter Module and Receiver, 10 x 433MHZ Antenna