MQ137 Gas Sensor Module MQ-137 Ammonia Sensor Module NH3 Sensor Module
$45.91
Shipping:Standard Shipping about 10-25 business days
Secure Payment:Paypal,VISA,MasterCard
Description
Size:32mm X22mm X30mm length * width * height
Main chip:LM393, NH3 gas sensing probe
Working voltage:DC 5V
Features
1. It has a signal output indicator indication;
2, dual signal output (analog output and TTL level output);
3. The TTL output valid signal is low level; (when the output low level, the signal light is on, it can be connected to the IO port of the single chip)
4. The analog output increases with increasing concentration, and the higher the concentration, the higher the voltage;
5. High sensitivity and selectivity to ammonia;
6. Has a long service life and reliable stability;
7. Fast res ponse recovery features;
8. With mounting holes for easy installation;
9. The probe can be plugged and unplugged for easy testing.
Application
Harmful gas detection device for home and environment, suitable for the detection of ammonia vapor, ammonia gas sensor test concentration range:10 to 300ppm
Provide reference routines, circuit diagrams, and probe instructions
Package Included
1 x MQ-137 Ammonia Sensor Module NH3 Sensor Module
| Weight | 0.015 kg |
|---|
Related products
TCRT5000 infrared Reflective Switch IR Barrier Line Track Sensor Module
$4.36Sensor & Detector ModuleAdd to cartTCRT5000 Infrared Reflective Switch IR Barrier Line Track Sensor ModuleFeaturesTCRT5000 sensor of infrared emission diode constantly launch infrared, the infrared ray is emitted when the intensity of reflected back has not been reflected or but is not big enough, the light activated triode has been in the off state, the output end of the module …
TCRT5000 infrared Reflective Switch IR Barrier Line Track Sensor ModuleRead More
10pcs thermal Sensor Module Temperature Switch thermistor Sensor Board
$10.88Sensor & Detector ModuleAdd to cartUsesTemperature detection, temperature control sensors , ambient temperature detectionFeatures1. Using the NTC thermistor sensor, good sensitivity2. The comparator output signal is clean, good waveform, driving ability, more than 15mA.3. Adjust the temperature distribution position detection threshold4. The working voltage 3.3V-5V5. The output format:digital switching outputs ( 0 and 1 )6. Fixed bolt holes for easy …
10pcs thermal Sensor Module Temperature Switch thermistor Sensor BoardRead More
50pcs thermal Sensor Module Temperature Switch thermistor Sensor Board
$44.79Sensor & Detector ModuleAdd to cartUsesTemperature detection, temperature control sensors , ambient temperature detectionFeatures1. Using the NTC thermistor sensor, good sensitivity2. The comparator output signal is clean, good waveform, driving ability, more than 15mA.3. Adjust the temperature distribution position detection threshold4. The working voltage 3.3V-5V5. The output format:digital switching outputs ( 0 and 1 )6. Fixed bolt holes for easy …
50pcs thermal Sensor Module Temperature Switch thermistor Sensor BoardRead More
Customers Also Viewed
10pcs MAX9814 High Performance Microphone AGC Amplifier Module CMA-4544PF-W
$90.79Amplifier BoardAdd to cartSpecifications– Supply Voltage:2.7v-5.5v @ 3mA current– Output:2Vpp on 1.25V bias– Frequency Response:20Hz – 20KHz– Programmable Attack and Release Ratio– Automatic gain, selectable max from 40dB, 50dB or 60dB– Low Input-Referred Noise Density of 30nV/– Low THD:0.04% (typ)– Low Power Shutdown Mode– Built-in 2V low-noise microphone bias– -40°C ~ +85°C extended temperature rangePackage included10 x Microphone …
10pcs MAX9814 High Performance Microphone AGC Amplifier Module CMA-4544PF-WRead More
T-AMP 2 x 15W TA2024 Digital Audio Amplifier Board Mini AMP
$19.04Amplifier BoardAdd to cartFeature1. The power to more than 12V current 3A2. The speaker is best to use an impedance of 4 ohms, some of the high sensitivity3. For some signal level is relatively low tone, to add the preamplifier to play the effect4. Note the positive and negative can not be reversed, use the power supplyElectrical CharacteristicsIts …
T-AMP 2 x 15W TA2024 Digital Audio Amplifier Board Mini AMPRead More
Mega 2560 R3 ATmega2560-16AU Control Module without USB Cable
$44.54Motherboard & Development BoardAdd to cartDescriptionThis is compatible R3 Mega2560 ATmega2560-16AU control board without USB cableMega is an ATmega2560 as core microcontroller development board itself has 54 groups digital I / O input / output terminal (14 groups do PWM outputs), 16 sets of simulation than the input side, group 4 UARTs (hardware serial ports), using the 16 MHz crystal …
Mega 2560 R3 ATmega2560-16AU Control Module without USB CableRead More
20W 420*380*3mm Folding PET Monocrystalline Silicon Solar Panel with Cable Dual USB
$93.62Smart Robot & Solar PanelAdd to cartSpecificationsMaximum Power(Pmax):20WOpen Circuit Voltage(Voc):18VMaximum Power Voltage(Vmp):12vMaximum Power Current(Imp):1.1AMaximum System Voltage(Imp):1000vOutput:USB 5V & DC 18VQuantity of cell:36Cell Effcience %:20%Output Tolerance:±10%Size:425*380*3mmStandard Test Conditions:Irradiance 1000w/m2Temoerature 25.C,AM=1.5Package Included1 x Solar panel with cable
5pcs 8Channel DC 5V RS485 Modbus RTU Control Module UART Relay Switch Board PLC
$45.10Relay ModuleAdd to cartDescriptions– Operating Voltage:DC 5V(5V Version)– Operating Current:10-15MA– inchopeninch inchcloseinch inchMomentaryinch inchSelf-lockinginch inchInterlockinch inchDelayinch 6 Commands– Two instruction-control mode:AT command and MODBUS command– Under the AT command ,the maximum delay is 9999 seconds– Under the MODBUS command ,the maximum delay is 255 seconds– AT commands can be made serial HyperTerminal (serial assistant) Enter;– MODBUS commands can …
5pcs 8Channel DC 5V RS485 Modbus RTU Control Module UART Relay Switch Board PLCRead More
LT1083cp 7A AC 35V Rectifier Filter Power Supply Board DIY Home theater Sound Amplifier Voltage Regulator
$24.04Power Supply ModuleAdd to cartDescriptionLT1083CP feature description (emphasis):It is a linear step-down block. Although the voltage adjustment can be adjusted from 2.5V to 37V, it is recommended that the working differential pressure is within 10V, because the power consumption is proportional to the differential pressure, the greater the differential pressure, the more heat The larger the output current, the …
Reviews
There are no reviews yet.