MQ-2 Smoke Sensor Module Smoking Detector Alarm Relay Switch Controller 12V 24V
SPECIFICATIONS
Brand Name: diymore
Choice: yes
Material: Polymer
Origin: Mainland China
Output: Switching Transducer
Theory: Hall Sensor
Type: Gas Sensor
Use: Gas Sensor
is_customized: Yes
semi_Choice: yes
Product Features:
Small and compact product
With power indicator light
Service life: greater than 100000 times
Equipped with anti reverse connection protection, the reverse connection of the power supply will not burn the board
Capable of controlling equipment with AC voltage up to 220V10A or DC voltage up to 30V10A
Function Description:
This module can detect the concentration of smoke, and can set one smoke detection threshold during use. When the smoke sensor detects that the ambient smoke concentration is greater than the set smoke threshold, the relay closes and the alarm indicator light lights up, and the buzzer sounds an alarm prompt. When the smoke sensor detects that the ambient smoke concentration drops below the set smoke threshold, the relay disconnects and the alarm indicator light goes out, and the buzzer stops alarming.
Reference description:
Working voltage: DC5-30V.
Output capacity: It can control devices within 220V10A AC or 30V10A DC.
Static current: 20mA,
Dynamic current: 50mA.
Equipped with anti reverse connection protection, the power supply reverse connection will not burn the board.
Service life: over 100000 times, working temperature: -40--85C
Board size: 49 * 45 * 20mm,
Positioning holes: with a spacing of 44mm in length and 40mm in width, and an aperture distance of 2 5mm, aperture 3mm.
[1] Alarm buzzer
[2] Status indicator light, indicator light on, buzzer alarm, and relay closed (9 and 10 closed, 10 and 11 disconnected). The indicator light goes out, the buzzer stops alarming, and the relay is disconnected (9 and 10 are disconnected, 10 and 11 are closed).
[3] Smoke detection sensor, try to keep the smoke sensor close to the smoke as much as possible for more accurate detection
[4] The smoke concentration detection setting knob is rotated clockwise to provide a smoke concentration threshold; Rotate counterclockwise to lower the smoke concentration threshold.
[5] Power indicator light, permanently on after power supply
[6] Negative pole of power supply
[7] Positive pole of power supply
[8] The working power supply rotates, and the DC 5-7V pins are plugged in with a short-circuit cap, while the DC 7-30V pins are disconnected
[9] Normally open pin of relay
[10] Relay common pin
[11] Normally closed foot of relay
Package included:
1 x MQ-2 Smoke Sensor Module Smoking Detector Alarm Relay Switch Controller 12V 24V










- Standard Shipping: Standard Shipping (12–18 Business Days)
- Express Shipping: Expedited Shipping (5–9 Business Days)
- Free Shipping: Orders over $199 qualify automatically
- Tracking: Full tracking number provided for all orders
- Returns: 30-day hassle-free return window
- Condition: Items must be unused and in original packaging
- Refund: Full refund processed within 3-5 business days
- Factory Direct: ISO/TS 16949 certified manufacturer
- Quality: 100% electrical continuity tested before shipment
- Experience: 15+ years in automotive connector industry
- Support: Professional technical support available
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