Description
Power Tip: For full brightness white on all 8 LEDs
The MQ-137 Gas Sensor Module is a high-sensitivity semiconductor gas sensor designed for detecting ammonia (NH3) and carbon monoxide (CO) in various applications
1x 320mm Stainless Steel Rod (8mm diameter)
audio amplifiers
DOA (Dead on Arrival) units
1 Channel RF Wireless ON/OFF Smart Switch with RF Remote Control MetroQ MTQ 777 Smart Multimeter Power Tip: For full brightness1 Channel RF Wireless ON OFF Smart Switch with RF Remote Control You can control your one AC application up to 1000W operating power for each device with this RF smart switch. This is 1 channel smart relay switch to ON and OFF 220V @50Hz AC applications. It is very easy to install at your existing switchboard to make it wireless with remote control in your hand. RF Remote operates on 433MHz RF frequency with up to 30meter of Range. This Relay system