3 dbi SMA Male RA AntennaIt's a 3Dbi SMA(m) RA antenna. This is a commonly used rubber duck type GSM Antenna with a standard Right Angle SMA Male Connector. This is the antenna for GSM Modems. It is a small, high quality, quad band, standard SMA terminated, cellular antenna, which has a length of 2 inches. Features Applications Wireless GSM communication Its connector type is Right angle SMA male Its polarization is vertical type It can be added to wireless USB adapter or

79mw) to 20dbm (100mw)

3M ohm 1/2W and tolerance of ±5%

The comparator output

Specifiation

The sensor contains a simple reed switch that is triggered when a magnet is present

Learning the transmitter : ( Latched Mode )

7 ohm 1/4W and tolerance of ±1%

Output type: binary number

Connector Type Alligator Clip (Crocodile) Cable Length  45cm  Colour Red

This MQ4 - Methane Gas sensor module can sense the presence of compressed Natural Gas sensors (CNG)

so it's made of high-quality

Package 40xx Insulation resistance >100 MΩ Length 12 mm  Width 12 mm Height 8 mm Mounting type Through Hole