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Specification
Brand : Sprressal
BulletPoint1 : Adopt high-quality double-panel design, with power indicator and TTL signal output indicator.
BulletPoint2 : TTL output high and low level. (Can be directly connected to the microcontroller or relay module)
BulletPoint3 : The analog output voltage changes with the concentration. Fast response recovery feature.
BulletPoint4 : With DO switch signal (TTL) output and AO analog signal output
BulletPoint5 : Has long service life and reliable stability.
Color : Green
ExternallyAssignedProductIdentifier : 6131269290582
ItemName : Sprressal 3X MQ137 Ammonia Gas Detection Sensor Module NH3 Gas Sensor Module Appliance Accessories Analog TTL Level Output
ItemPackageDimensions_Height : 9 centimeters
ItemPackageDimensions_Length : 13 centimeters
ItemPackageDimensions_Width : 8 centimeters
ItemPackageQuantity : 1
ItemTypeKeyword : 3d-eyewear
Manufacturer : Sprressal
ModelName : 750192719
ModelNumber : 750192719
NumberOfItems : 3
PartNumber : 750192719
ProductDescription : Sprressal Electrical performance:
Input voltage: DC5V Power consumption (current): 150mA
DO output: TTL digital quantities 0 and 1 (0.1 and 5V)
AO output: analog level signal
Special reminder: After the sensor is powered on, it needs to be preheated for about 20S, and the measured data is stable. It is normal for the sensor to heat up, because there is a heating wire inside, if it is hot, it not be normal.
Wiring:
1. VCC: connect to the positive pole of the power supply (5V)
2. GND: connect to the negative pole of the power supply
3. DO: TTL switch signal output
4. AO: analog signal output
Model Number: MQ137
Type: Gas Sensor
color:Green
Material:Metal

Package Contents:
3 x MQ137 Ammonia Gas Senso Module

Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
ProductSiteLaunchDate : 2025-02-20T09:26:27.187Z
UnitCount : 1.1111
UnspscCode : 46171600