Which type of sensor is used here- Photoelectric or Ionization?

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Blackt Electrotech(BT35F): Updated Smoke Detection Sensor Alarm DIY 2 PC Pack

Blackt Electrotech(BT35F): Updated Smoke Detection Sensor Alarm DIY 2 PC Pack

Product ID: 334346441

Details

Brand
Blackt
Style
Alarm
Power Source
Battery
Colour
White
Item Weight
240 Grams
Alarm
Yes

📶Wireless Optical Sensor

🔊85 dB Loud Alarm

🔋1+ Year Battery Life

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₩47062

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Description

🔥 Stay ahead of danger with silent tech that screams safety! 🔥

POWERFUL 85 D B ALARM - Loud enough to alert your entire home or office, ensuring safety first.
HUMIDITY RESISTANT DESIGN - Reliable performance even in high humidity environments up to 95%.
LONG LASTING BATTERY LIFE - Over a year of continuous protection with a simple 9V battery.
SMART FAULT BATTERY ALERTS - Audio-visual warnings keep you ahead of any sensor or power issues.
INSTANT WIRELESS SMOKE DETECTION - No wiring or assembly needed—plug & protect instantly.

The Blackt Electrotech BT35F is a sleek, wireless optical smoke detector pack featuring a piercing 85 dB alarm, over one year of battery life, and smart fault alerts. Designed for easy DIY installation with no wiring, it offers reliable smoke detection even in humid conditions, making it an essential safety upgrade for modern homes and offices.

Specifications

ASIN	B0946XVYM2
Alarm	Yes
Best Sellers Rank	#5,449 in Home Improvement ( See Top 100 in Home Improvement ) #18 in Fire Safety
Brand	Blackt Electrotech
Colour	White
Country of Origin	China
Customer Reviews	3.7 out of 5 stars 121 Reviews
Item Weight	240 Grams
Manufacturer	Blackt Electrotech
Number of Items	2
Operating Humidity	95 percent
Power Source	Battery Powered
Product Style	Alarm
Sensor Type	optical
Style	Alarm
Unit Count	2.0 Count
Upper Temperature Range	50 Degrees Celsius

Reviews

M**D

good one

good product

14.01.2026

G**V

Mediocre sensitivity but functional

The smoke alarm works but its sensitivity is not very good. It will go off only after the room is full of smoke. Alarm volume is good. The mounting plate is not very robust. 3.5 stars. However, you definitely need a smoke alarm in your kitchen and one in your child's room.

6.01.2026

P**N

1 month life

It stops working within 1 month. don’t buy. as a safety product it should work long but the quality is very poor. imagine you placed the device where you are fully relying on the device but it didn’t worked when needed.

5.02.2024

S**N

Great Product.

I have installed 2 products around 6 months ago & shows the blinking light which confirms the working mode. The product was tested before installation for response and found great in response. The installation & the mounting method is very easy. Recommend for buyers.

25.03.2024

D**A

One of the sensor is defective The order given was for 2 nos

One sensor of the two were defective so only one was useful.

8.03.2024

G**D

good

17.02.2025

T**Z

Good Quality

Quality good

14.12.2024

N**J

Nice!!

This is a very useful gadget and I think everyone should buy it for safety reasons

9.08.2024

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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₩47062

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Korea.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Neha S.

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2 weeks ago

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