Price MQ137 analog sensor modules gas detector ammonia NH3 sensor

1) With a signal output indicator light

2) TTL output valid signal is low; (output low when the signal light, can be connected to the microcontroller IO port)

3) Whe analog output increases with the increase of concentration, the higher the higher the higher the voltage

4) Size: 32mm X22mm X30mm

5) With a mounting hole, easy to install

Q1: Are you a factory or trading company?

A: We are a factory and manufacturer .

Q2: What's the product range of our company?

A: Industrial IOT sensor, Temperature and humidity sensor, Current sensor, Gas sensor, water quality sensor, Illuminance sensor, All in one sensor, Main module, Communication module, Electronic module, Power module, Other accessories , etc. Welcome your inquiry.

Q3: What is the delivery date?

A1: Standard product: we have plenty in stock, 5-10 workdays to ship.

A2: Customized order: 20-30 workdays after sample confirmed. (Please consult for specific delivery date)

Q4: How to ship?

A1: It depends on the shipping method you choose.

A2: DHL, FEDEX, UPS will take about 5-10 working days to destination as usual.

A3: EMS will take 5-15 working days as usual.

A4: Regular airmail will take about 15-30 days.