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🔥 HOT DEAL
MC-31 NC Surface Mount Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch, for Home Security and Burglar Alarm Systems, Sets of 3, White
✅ In stock
⭐ Lowest price we've tracked
📉 Price recently dropped
A
Grade
Analysis Confidence
63%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Jul 4, 2026 4:38 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
🔥 Great Deal- 🔥Verdict: Great Deal. Strong buy. Price is significantly below its historical average.
- 💰The current price is 41% below what this product typically costs — a notable saving over its usual going rate.
- 🏷️The retail sticker price has been slashed by 88% — a steep markdown from the official listing.
- 📉Our analysis places this at the most competitive price point we have ever tracked for this product — an exceptional moment to buy.
- 📈Pricing has been trending lower — momentum that adds further appeal to this deal.
How We Scored This Deal
Price Competitiveness
28/28
Recent Value
7.45/22
Market Standing
13.68/20
Deal Strength
20/20
Momentum
10/10
📝 Product Overview
🏪 Sold by
fudaxingbia
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓【Name】: MC-31 NC Magnetic Reed Switch.
✓【Specifications】: Material: fireproof ABS material, rated voltage: 100V; contact capacity: 500(mA) (maximum switching current), rated power: 10W (maximum switching power); contact type: NC, triggering range: 15-25mm . Overall Dimensions: 65 x 19 mm / 2.56" x 0.75" (L*W). White makes the home big and beautiful.
✓【Switch Type】: NO means normally open: when the magnets are separated, the circuit is turned on (the light is on); when the magnets are together, the circuit is not turned on (the light is off), NC means normally closed: when the magnets are together, the circuit is turned on ( The light is on); when the magnet is separated, the circuit is non-conductive (the light is off).
✓【Application】: MC-31 NC reed switch is an electrical switch operated by an external magnetic field. Designed for use in alarm systems. Ideal for windows, doors in homes and factories. etc. Important: connect when near the magnet, disconnect when the magnet moves away. Wired magnetic door/window contacts can be added to wireless/wired alarm systems. (some wireless systems have a wired area)
✓【Package Included】: 3 sets x MC-31 Reed Switch. (including mounting screws). Here's our 90-day money-back risk-free purchase guarantee, ›See more product details
⚙️ Specifications
Brand
Lagogia
Color
White
Power Source
Corded Electric
Item dimensions L x W x H
1.97 x 0.39 x 0.39 inches
Connectivity Technology
Wired
Alert Type
Motion
Voltage
100 volts
Sensor Technology
Magnetic Sensor
Maximum Range
25 millimeters
Smart Home Compatibility
Not Smart Home Compatible
Compatible Devices
Home Security Systems, Alarm Systems
