Do the btc 201 / btc 211 have battery backup or memory? if the power goes off, will they resume without me resetting it when power returns?

We own the BTC211 and can definitely confirm that it has battery backup/memory.

Is there an option for a longer temperature probe cable, or a way to extend it?

Seems like you could extend it easily as it is just a standard 3.5 mm connection. Though I have not tried it. This is an excellent reliable product!

What size screw do you use for mounting it to the wall? Must have a thin head

Just try and find screws with a <1/4" diameter head and flat, good luck, they don't specify screws by head size. WTH these don't come with any hardware, IDK.

Does this Temp controller have solid-state relays or mechanical contacts?

I'm sorry, I am not a technical person. All I can tell you is - I set the parameters on the controller to keeps my greenhouse between 62 and 66 and it does all day and all night. If the temperature goes above 66 the controller will not come on until it drops to 62.

Btc 211 | Desertcart Norway

Q: Does this Temp controller have solid-state relays or mechanical contacts?

I'm sorry, I am not a technical person. All I can tell you is - I set the parameters on the controller to keeps my greenhouse between 62 and 66 and it does all day and all night. If the temperature goes above 66 the controller will not come on until it drops to 62.

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1014 kr

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Sold byAmazon NorwayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌡️ Master your climate with precision and ease — never miss a degree!

DUAL RELAY POWERHOUSE - Simultaneously manage heating and cooling devices up to 1650W—perfect for dynamic environments.
BUILT IN SAFETY ALARMS - Stay worry-free with high/low temp alerts plus compressor delay protection to extend equipment life.
PLUG PLAY SIMPLICITY - Effortless setup with intuitive button controls—get precise temps in minutes, no tech degree needed.
REAL TIME DUAL DISPLAY - Monitor current and target temperatures side-by-side for instant, confident adjustments.
LONG RANGE WATERPROOF PROBE - 3m sensor cable lets you place the probe exactly where it counts—even in wet or hard-to-reach spots.

The bayite BTC211 is a robust 1650W, 15A temperature controller featuring dual relay outputs for simultaneous heating and cooling management. It offers a dual LCD display for real-time and set temperature monitoring, supports both °C and °F, and includes safety features like high/low temperature alarms and compressor delay protection. With a 3-meter waterproof probe and plug-and-play design, it’s ideal for applications ranging from fermentation and aquariums to HVAC and reptile habitats. Trusted by thousands for reliable, long-term temperature control.

Specifications

ASIN	B01KMA6EAM
Additional Features	Programmable
Best Sellers Rank	#82,671 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #113 in Temperature Controllers
Brand	bayite
Brand Name	bayite
Color	Black
Control Method	Touch
Control Type	Button Control
Controller Type	PLUG AND PLAY
Customer Reviews	4.5 out of 5 stars 1,465 Reviews
Display Type	LCD
Included Components	temperature controoler with plug and a sensor
Item Dimensions D x W x H	2"D x 4.5"W x 4.5"H
Manufacturer Part Number	BYT-BTC211
Material Type	Plastic
Model Name	BYT-3A061
Model Number	BTC211
Mounting Type	free standing
Number of Batteries	Unknown batteries required.
Number of Items	1
Power Source	Battery Powered
Product Dimensions	2"D x 4.5"W x 4.5"H
Product Style	Digital
Shape	Rectangular
Special Feature	Programmable
Specific Uses For Product	Heat Pump, air conditioner, heater or cooling fan, freezer
Temperature Control Type	Heating, cooling , both heating and cooling
UPC	711463671460
Unit Count	1 Count
Voltage	110 volts
Wattage	1650 watts

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

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

5 days ago

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

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