Showing 101–120 of 165 results
MQ-4 High Sensitivity Gas Methane (CNG) Detector Sensor Module
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This is a very easy to use low cost semiconductor Gas sensor Module with analog and digital output. This module uses MQ4 Methane gas sensor as a gas sensing element. It requires no external components just plug in Vcc & ground pins and you are ready to go
MQ-5 Methane LPG Liquid Propane Gas Sensor Module
Rated 0 out of 5
0 Reviews- Operating Voltage: 5V DC
- High sensitivity to LPG, natural gas, town gas.
- Small sensitivity to alcohol, smoke.
- Stable and long life.
- Simple drive circuit.
- Fast response.
MQ-7 Carbon Monoxide Coal Gas Sensor Module
Rated 0 out of 5
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Sensitive material of MQ-7 gas sensor is SnO2, which with lower conductivity in clean air. It make detection by method of cycle high and low temperature, and detect CO when low temperature (heated by 1.5V).
MQ-8 Hydrogen Gas H2 Sensor Module
Rated 0 out of 5
0 Reviews- Using high-quality dual-panel design, with power indicator and TTL signal output instructions.
- The switching signal having a DO (TTL) output and analog output AO.
- TTL output valid signal is low. ( Low-level signal when the output light can directly connect to the microcontroller or relay module )
- The higher the voltage, the concentration of the analog output voltage is higher.
- A hydrogen gas detection with good sensitivity.
- Rapid response and recovery characteristics
MQ-9 Carbon Monoxide, Methane and LPG Gas Sensor Module
Rated 0 out of 5
0 Reviews- Good sensitivity to CO/Combustible Gas
- High sensitivity to Methane, Propane, and CO
- Input voltage: DC 5±0.2V
- Current Consumption: 150mA
PCF8591 Module Analog to Digital Converter Module
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PCF8591 Module Analog to Digital Converter Module is a breakout board/Prototype Board for PCF8591 IC. The PCF8591 is a single-chip, single‑supply low‑power 8‑bit CMOS data acquisition device with four analog inputs, one analog output, and a serial I²C‑bus interface.
RS232 To RS485 Serial Converter Adapter
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This is a simple RS232 to RS485 converter that is self powered using the TX, RX or RTS, CTS signals for power. The RS232 is DB9 female connector, and the RS422 side is a DB9 male or 4 position terminal block.
Speed Sensor Module Tacho Sensor Slot-Type Optocoupler
Rated 0 out of 5
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The DO output interface can be directly connected to a micro-controller IO port, if there is a block detection sensor, such as the speed of the motor encoder can detect.
DO modules can be connected to the relay, limit switch, and other functions, it can also with the active buzzer module, compose alarm.