⏳ Automate smarter, not harder — control your world with precision!
The Blackt Electrotech BT41D is a compact, DIN rail-mountable digital timer relay switch designed for professional-grade automation. It offers up to 20 programmable on/off cycles daily or weekly, supports heavy-duty 16A at 240V AC loads, and features a replaceable CR3032 battery for reliable, interference-resistant operation. Ideal for automating streetlights, heaters, neon signs, and more, it combines precision, durability, and space-saving design with a 6-month warranty.
| Colour | White |
| Brand | Blackt Electrotech |
| Material | Plastic |
| Product Dimensions | 8.6D x 6.5W x 3.6H Centimeters |
| Item Weight | 145 Grams |
| Number of settings | 16 |
| Manufacturer | Blackt Electrotech |
| Country of Origin | China |
| Item model number | BT41F1 |
| ASIN | B076NXPYKC |
D**A
Works well
So this is the one to get even if the device you connet to is under 10A. This can handle up to 16A, which helps in the longevity of the switch.The clock time setting instructions on the manual is not clear or incorrect. To set the time, hold on to the clock button, and while keeping it held click the day hour or minutes button to set the clock's time. Also it's 24h clock only and cannot be changed to 12h clock. that's another mistake on the manual. It's always like this with these products, the manual is bad or maybe for a older model which isn't updated. But that said, the product itself is quite good.
P**R
Warranty details for replace
Product working is good but one item is not working what can I do for warranty
V**9
A small but powerful device
this device is very easy to program unlike the other ones which are extremely complicatedthe DIN rail mounting is another plus which makes it easy to mount multiple timers on one rail
S**S
Used and damaged product delivered
Received damaged product twice
Q**
good product
quality producteasy to handle ,worth it
M**O
needs improvement.
If manufacture interested, they could consider having better battery (internal) holder for CR2032 which hold battery properly. In my case, battery was out of the battery case and was just moving around according to the device movement, once received. if any user connects the device to line as is, it may create short circuit and may be harm to the user too. Since I noticed something is loose inside, I could open the case and keep the battery back in place and proceed to test the device. while testing the device found working as expected.
H**A
Hi
The best product
A**I
Short time only
After six months I got trouble .not working perfectly
Trustpilot
1 day ago
3 weeks ago
