4 Channel WiFi Temperature Smart Sensor Relay Switch,DC 7-32V or Micro-USB 5V Dry Contact App Remote,Work with Smart Life/Tuya App,Compatible with Alexa Google Home (4CH DC 7-32V)

★★★★★ 4.5 112 reviews

US$8.40
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Management number 246984981 Release Date 2026/08/16 List Price US$8.40 Model Number 246984981
Category

This WiFi smart relay thermostat switch lets you turn your appliances on or off remotely or automatically through a mobile app. It's designed as a highly adaptable smart home temperature control solution for home brewing, fermentation, breeding, incubation, greenhouse planting, and more. The relay switch comes with a 1-meter (3.3-foot) high-precision DS18B20 waterproof temperature sensor probe, with a measuring range of -20 to 90°C, allowing it to smartly detect changes in the environment’s temperature.Dry contact output: 4-channel WiFi temperature switch, operating voltage DC 7-32V/Micro USB 5V, 10A MAX. It only powers the control side, uses a passive on/off design, outputs only switch signals, no current or voltage passes through the load side, so you don’t need to worry about overcurrent on the load side.Network support: Smart WiFi devices only support 2.4GHz WiFi (5GHz WiFi is not usable) and can control electrical devices via 2G/3G/4G mobile networks.Smart Control:Once the device is connected to WiFi, you can check real-time temperature data anytime and anywhere on your phone App via WiFi or 2/3/4G mobile network. You can also remotely start or stop the device, completely getting rid of the hassle of going back and forth to operate it on-site.1. Supports scheduled on/off: Set timers, delayed off (pulse), countdown to turn on/off at a specified time.2. Manual and automatic modes: Set automatic mode in the app to turn the device on/off automatically within a specified temperature range. When the environment is within the range, it will automatically turn the device on/off.3. Bluetooth control: If the device is offline, you can control it via the app using Bluetooth on your phone at close range.4. R433 remote control: Must use the learning function (purchase remote separately and pair according to the controller’s instructions).Voice control: After configuring the Smart Life or Tuya App, you can seamlessly connect with major voice assistants like Amazon Echo and Google Home, create smart scenarios to use Siri, making hands-free operation easier and your home smarter.A temperature controller is an important device for keeping precise and consistent temperatures in various applications. Whether you need to adjust the temperature of a greenhouse, industrial oven, scientific incubator, or home brewing equipment, a reliable temperature controller can make sure your process or environment stays at the best conditions.

  • [Widely Used]: 4-channel WiFi smart temperature controller with a waterproof temperature sensor probe, remote monitoring, and smart control. It can connect to heat pumps, water heaters, and other temperature control devices. Suitable for home brewing, fermentation, breeding, incubation, and greenhouse monitoring. Single-channel maximum load current is 10A (high-current devices require an AC contactor).
  • [Multiple Remote Control Functions]: When the device is within 7 meters of the router, add it to the Smart Life or Tuya App. No matter where you are, you can remotely control your appliances to turn on/off in manual or automatic mode via the app. You can also use Bluetooth for close-range operation even without internet; it also supports pairing with a fixed code 433Mhz remote control (sold separately).
  • [Timer and Temperature Control Functions]: Provides three settings for turning electrical devices on/off: timer, delayed off (jog), and countdown. Supports automatic control of device on/off based on preset temperature values, achieving accurate and stable temperature control, and easily automating device operation.
  • [Temperature Monitoring & Sync Status]: The app keeps track of daily/monthly/yearly environmental temperatures and the on/off history of your devices. You can switch between °C/°F and calibrate temperature for accurate display. The on/off status of your appliances is instantly reflected in the app control interface.
  • [Device Sharing & Voice Control]: The device can be shared with 19 users for control and can also set up group control. Voice Control: After completing the app setup, you can link it to voice assistants like Amazon Echo or Google Home and control your appliances directly with voice commands.
ASIN B0DF7F6HXH
Model 4CH 7-32V
Wattage 1000 watts
Brand Name LETLINK
Item Weight 4.64 ounces
Part Number 4CH 7-32V
Manufacturer Baolan electronic Technology Co., LTD
Current Rating 10 A
Operation Mode ON-OFF
Included Components wifi temperature smart relay switch*1;1m temperature probe sesnor cable*1
Upper Temperature Rating 90 °C

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