Refrigeration Heating Thermostat

Every digital thermostat here only offers one output relay to connect one load, which could be a heating or refrigeration unit.

The heating unit could be a hot water boiler/tank, heat mat/pad, heating tape, heat lamp, and the refrigeration unit usually is the compressor.

You have to select the heating or the refrigeration mode from the menu list manually before let it works, they are not auto switch dual output thermostats like STC-1000. But you can use the heat controlling mode in winter, switch to the cooling mode in summer.

Products Attributes Compares

All the below digital temperature controllers to manage the power supply status of Refrigeration equipment or Heating device, what is the difference, how to find the most suitable one?

Tips: Slide left and right to see more columns if more than 5 Products.
Sku
Price
Title
Function
Thermostat Types
Main Function
Time Delay
Sensor & Cable
Alarm Temperature
Alarm Methods
Temp. Range
Measure Min
Measure Max
Control Min
Control Max
Front Panel
Resolution
Interactive Mode
Front Size (W*H)
Mounting (W*H)
AL8010F
EXW: $6.79$8.08
 
Programmable Thermostat
1 Relay, Refrigeration / Heating
Compressor Delay - Editable, Alarm Delay - Without
1PCS, 10K, 2m Cable, replaceable
Fixed
Visible
 
-50℃
120℃
-50℃
120℃
 
0.1℃ Resolution
Push Button
75*34 mm
71*29 mm
AL8010H
EXW: $6.72$8.02
 
Programmable Thermostat
1 Relay, Refrigeration / Heating
Compressor Delay - Editable, Alarm Delay - Editable
1PCS, 100K NTC, replaceable
Fixed
Visible
 
0℃
300℃
0℃
300℃
 
1°C Resolution
Push Button
75*34 mm
71*29 mm
STC-100A
EXW: $6.75$8.04
 
Programmable Thermostat
1 Relay, Refrigeration / Heating
Compressor Delay - Editable, Alarm Delay - Without
1PCS, 10K, 2m Cable, replaceable
Fixed
Visible
 
-40℃
99℃
-40℃
99℃
 
1°C Resolution
Push Button
75*34 mm
71*29 mm
STC-200
EXW: $6.83$8.12
 
Programmable Thermostat
1 Relay, Refrigeration / Heating, 1 Relay, Refrigeration / Heating / Alarm
Compressor Delay - Editable, Alarm Delay - Without
1PCS, 10K, 2m Cable, replaceable
Fixed
Audible, Visible
 
-50℃
99℃
-50℃
99℃
 
1°C Resolution
Push Button
77*35mm
71*29 mm
STC-2301
EXW: $9.34$10.64
 
Programmable Thermostat
1 Relay, Refrigeration / Heating
Compressor Delay - Editable, Alarm Delay - Editable, Alarm Delay - Editable - 1st Time Boot
1PCS, 10K, 2m Cable, replaceable
Editable
Audible, Visible
 
-40℃
99.9℃
-40℃
85℃
 
0.1℃ Resolution
Touching Sensitive Button
85*35mm
71*29 mm

Check the “Hide Similarities” option in the above table, from the Time delay row and the Alarm temperature row, we found

Function

  • All of them provide the option of delay time for compressor;
  • Only STC-2301 offers the delay time for alarm, others do not;
  • Only STC-2301 offers the alarm temperature setting option, others do not, but just use the measurable range as the line;
  • Temp Sensor

    Regarding the sensor, the AL8010H high-temperature thermostat adopts a different sensor from the other 4 models.

    Temperature range

    Next is the measurable and controllable temperature range, AL8010H max reaches 300 ℃, others usually lower than 120 degrees.

    Other Aspects

    Also exists differences in the aspect of resolution, button / key types, and the front panel size.

    Products Attributes Compares

    Tips: Slide left and right to see more columns if more than 5 Products.
    FunctionAL8010FAL8010HSTC-100ASTC-200+STC-2301
    Refrigeration or HeatingHCHCHCN/AF14
    Refrigeration or Heating or AlarmN/AN/AN/AF4N/A
    Temperature Return DifferenceDDDF0N/A
    Lower Limit for SP SettingLSLSLSF2N/A
    Upper Limit for SP SettingHSHSHSF3N/A
    Temperature CalibrationCACACAF5F13
    Protection Delay Time for RefrigeratorPTPTPTF1F9
    Alarm Delay time
    (count time from the controller power on)
    N/AN/AN/AN/AF10
    Alarm Delay time after F10
    (count time from the F10 over moment)
    N/AN/AN/AN/AF12
    Alarm Over-Temperature ValueN/AN/AN/AN/AF11
    From the above table, we find
    • AL8010F/H and the STC-100A owns totally same English abbreviate menu, there are some differences among them, we will see later;
    • STC-200+ and the STC-2301 adopts F code;
    • Only the STC-200+ could be taken just as a temperature monitor, to connect an external alarm;
    • Only the STC-2301 offers the editable alarm delay time and it even supplies an additional time count mode for delay time;
    • Except for the STC-2301 thermostat, all of the other controllers offer the options to limit the set-point range.

    Two Special differences

    The Hysteresis

    The arithmetic of the ideal temperature range is different, especially encounter to the Hysteresis value,
    • Controllers like AL8010H/F take [SP + Hysteresis] as the upper limits, [SP – Hysteresis] as the lower line;
    • But STC-100A and STC-200+ use the setpoint as the bottom line, meanwhile [SP + Hysteresis] as the upper limits;
    • In STC-2301 user can set the low and high limit directly, need not calculate;

    The Alarm Methods

    All controllers alarming by visible error code on the display, and some of them alarming by the audible methods, like STC-2301 and STC-200+ embedded a buzzer, however STC-100A, AL8010F/H without it.

    You will find more differences by reading each other’s PDF Manual.

    Conclusion

    For the functionality offered, all of them can satisfy the basic refrigeration and heating controlling requirements, the significant features of them as below
    1. STC-200+ support external alarm;
    2. STC-2301 owns touch-sensitive keys, offers the editable alarm delay time and over-temperature value setting;
    3. AL8010H max control 300 °C, without a buzzer;
    4. STC-100A owns a colorful front panel; without a buzzer; just remind it will quit from the setting interface in 4s if without operation.
    5. AL8010F is the best-selling one, without a buzzer.
    You will find more details from each product page, e.g. the circuit diagram of the heating controller, user manual, function menu list of aquarium temperature controller, etc. Please visit the here for more cooling thermostats with other functions.

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