Top 10

Best Controller With Automatic

of December 2022
Rank Product Rating
1
MOES Dual Power Controller 50A 5500 Watt Automatic Transfer Switch for Off Grid Solar Wind System ATS DC 12V 24V 48V AC 110V 220V.
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Product Highlights
  • 【Beneficial to Solar or Wind System】: On cloudy or windless days when your battery gets low, it will automatically switch to grid power, protect your battery.
  • 【Works like an opposite direction UPS】: The ATS controller will switch to grid power when batteries votagle are lower than cut off point,it will switch back to battery power when the batteries votagle are higher than recovery point.
  • 【Auto distinguish】: DC 12/24/48V,AC 100-120V 60HZ / 220-240V 50HZ auto distinguish.User can define the Cut-Off and Recovery Voltages.Recovery voltage must be higher than Cut-off voltage. Battery type: Suitable for Sealed,Gel,Lead-acid,Lithium battery and so on. as long as the voltage of your battery are within the voltage ranges in the followings.9-17V at 12V system;18-30V at 24V system; 30-60V at 48V system.
  • 【Big Power】: 5.5kw(110V) or 11KW(220v),Fast Transfer time:Inverter transfer to public power ≤10ms,public power transfer to inverter ≤16ms.

$119.99
2
12V Battery Charging Controller Protection Board Module Undervoltage Low Voltage Cut Off Automatic Switch Recovery Protection Controller Module with A LED Indicator
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Product Highlights
  • This is a under-voltage switch module used to turn off the power of load in the event of the voltage dropping below a set value
  • When the battery voltage increases to a set value, the module will automatically turn on load again
  • Designed with a LED indicator to show if load is cut off or turned on
  • Both turn-off and turn-on voltage value can be adjusted by simply adjusting potentiometer

$8.31
3
Level Controller Module, 12V DC/AC Water Level Controller Automatic Liquid Level Detection Sensor Module, Water Control Relay Switch Module for Fish Tank Aquarium Home Water Tower
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Product Highlights
  • WATER LEVEL AUTOMATIC CONTROLLER: supports manual or automatic mode control of water pump, with relay dry node output, suitable for various load control, simple and convenient installation, screws can be positioned and installed, and electric box rails can also be installed.
  • LIQUID CONTROL SWITCH MODULE: strong compatibility, can be used with a variety of liquid level sensors. Strong protection, with waterproof pump idling protection and water level overflow detection output.
  • WIDE RANGE OF APPLICATIONS: household water tower automatic water supply system, aquarium fish tank water exchange system, conductive liquid automatic control, livestock automatic feeding system, farm automatic water supply system and other occasions that require automatic water supply and water exchange.
  • INTERFACE DESCRIPTION: HIGH: upper limit probe; OUT: output probe; LOW: lower limit probe; IN+: power terminal 1 (regardless of positive and negative); IN-: power terminal 2 (regardless of positive and negative); NC: relay normally closed Contact; COM: relay common contact; NO: relay normally open contact.

$10.24 $8.03
4
Automatic Tuning of Pid Controllers
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Product Highlights
  • Used Book in Good Condition
  • Hardcover Book
  • Astrom, Karl J. (Author)
  • English (Publication Language)

$69.68
5
Water Pump Controller, Automatic Water Pump Pressure Switch Elctric Electronic Switch Controller, 110V
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Product Highlights
  • 【Automatically】: No pressure tank required,Automatically stops if no water is in the pump.
  • 【Fast Shipment】: This water pump controller will be shipped from US. Usually takes about 4-7 days.
  • 【Function】: The electric switch is used in water systems, start and stop the pump automatically. Examine the water automatically, stop the pump in the case of water shortage, protect the pump from damage caused by dry-running. Completely replaced traditional pump control system composed of pressure switch, pressure tank and check valve etc.
  • 【Input Voltage】:110V, Maximum pump HP:1.1KW, Maximum Current :30A.

$42.57
6
Automatic Dream Controller
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Product Highlights

$0.69
7
Inkbird Aquarium Heater with Probe Thermostat Fish Ornamental Shrimp Reef Tanks 24 Hours Double Time with Day Night Automatic Temperature Controller
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Product Highlights
  • 🐟🐟【Two Heating Plug】 Temperature control mode: on / off control. Please note that it is just a heating controller with no cooling function. Both plugs can control heating. The probe comes with a suction tray, which can be easily installed on the water tank.
  • 🐟🐟【Applicable scene】Because it has the powerful function of corrosion protection, it is very suitable for fresh water, sea water aquarium, coral cylinder, ornamental shrimp and tropical fish.
  • 🐟🐟【Dual Time Cycle Setting】Different daytime and night temperatures can be set within 24 hours depending on the physical needs of animals and plants.
  • 🐟🐟【LED display screen】Plug-and-play products are designed with a dual liquid crystal display that provides a temperature display of Celsius or Fahrenheit, capable of displaying.

$31.99
8
DC Backup Battery Switching Module, 5V~48V 10A Battery Charging Automatic Switch Adapter Emergency Power Controller Module
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Product Highlights
  • 【Easy to Use】The power supply controller is made of high quality meterial, designed with screw terminals for convenient wire connection, can be used for long time
  • 【Characteristic】The backup battery switching board is compact design, easy to carry and store, it will automatically identify voltage from 5V to 48V DC
  • 【How to Use】The battery charging controller can be used for emergency battery switching; when there is power on main power source terminal, it will connect to main power source as power supply; otherwise, it will automatically switch to battery
  • 【Practical】The power supply controller module is convenient to use, when there is power on main power source, it will charge battery continuously

$9.93
9
XH-M203 Full Automatic Water Level Controller, Liquid Level Detection Sensor Module for Water Conservancy Projects, Relay Output AC/DC 12V
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Product Highlights
  • RELAY OUTPUT: The output type is relay output. When the water level is higher than on-line, it will automatically stop adding water without manual management.
  • EASY TO OPERATE: The water level controller adopts fully automatic control, simple operation, simple installation, long service life.
  • LOW POWER CONSUMPTION: The automatic water level detection has low power consumption, large switching capacity, strong anti-interference ability, can be used for a long time.
  • PRACTICAL: The liquid level detection sensor board has stable function and excellent quality, it is widely used in water conservancy projects, water towers, buckets, water tanks, etc.

$12.39
10
Automatic Dream Controller
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Product Highlights

$0.69