how to switch from °F to °C?

Hold down on the up and down buttons at the same time

how many mats can be connected to this?

I have used these with a power splitter outlet into 2 mats and they work fine. The controler applies power till the programmed temperature is achieved then shuts off. Unit will cycle to maintain temps. I've heard the mats burn out frequently but with a controller I've never had a problem. I usually set for 54°F and tomatoes, peppers, tobbacco, leeks love it some plants pop up in 24 hrs. usually 2-3 days. A small low velocity fan will prevent damping(mold/mildews). Do not shut off heat and fan or damping will take hold in less than a day. And do not use anything other than sterile medium for seedlings/starts No fertilizers for couple weeks and definately no contaminates azomite will introduce spores/damping.

Is this a thermostat with a mat or does it work with any other mat?

It is just a thermostat. It works with anything heat outputting, like a heating lamp. The probe senses the temperature and turns the power on or off to whatever you plug into it.

Is the probe ok with saltwater ??

Instructions state "do not immerse temp probe in liquid" so no .

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VIVOSUN Digital Heat Mat Thermostat Controller, 40–108 ºF 1000W for Reptiles, Seedlings, Germination, Incubation and Fermentation

VIVOSUN Digital Heat Mat Thermostat Controller, 40–108 ºF 1000W for Reptiles, Seedlings, Germination, Incubation and Fermentation

Product ID: 18764081

Details

Brand
VIVOSUN
Color
Green
Display Type
LCD
Material
Plastic
Voltage
230 Volts

⚡Supports up to 1000W power

🌡️Precise 40-108°F control

🛠️Durable rust-proof plastic

31975CFA

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Description

🔥 Stay in the zone: Perfect temps, zero hassle!

POWERFUL COMPATIBLE - Handles up to 1000W and plugs seamlessly into any North American outlet, ensuring broad compatibility with your existing heat mats.
EFFORTLESS SETUP CONTROL - Three-button interface and quick toggle between °F/°C means you’re up and running in seconds—no manual needed, no stress.
CLUTTER FREE READY TO HANG - Includes a wall mount and hanging tab with an angled socket to keep your workspace tidy and your cords perfectly managed.
PRECISION TEMPERATURE MASTERY - Maintain your ideal environment with an ultra-accurate 40-108°F range—perfect for delicate seedlings or sensitive reptiles.
BUILT TO LAST DESIGNED TO IMPRESS - Crafted from fortified plastic with a sleek hexagonal grip—no rust, no fuss, just reliable performance under any condition.

The VIVOSUN Digital Heat Mat Thermostat Controller offers professional-grade temperature regulation from 40 to 108°F with a 1000W capacity, ideal for reptiles, seedlings, and fermentation. Featuring a durable, rust-resistant design and an intuitive 3-button interface, it ensures precise root-zone monitoring and effortless setup. Compatible with all North American outlets and heat mats, it’s engineered for reliability and convenience in any growing or incubation environment.

Specifications

ASIN	B015F4VFGI
Best Sellers Rank	#21,951 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #247 in Greenhouses & Plant Germination Equipment
Brand Name	VIVOSUN
Color	Green
Customer Reviews	4.5 4.5 out of 5 stars (5,737)
Display Type	LCD
Included Components	User Manual
Manufacturer	VIVOSUN
Material Type	Plastic
Model	330101
Operating Temperature	40 Degrees Fahrenheit
Part Number	330101
UPC	742920469641
Unit Count	1.0 Count
Voltage	230 Volts
Warranty Description	1 Year

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31975CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered 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 Senegal.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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