Top 9 External Freezer Thermastat Control

The Johnson Control’s A421 digital temperature controller is great for the brewers kegerator or keezer. You can use this to keep your beer or wine at exactly the temperature you like it. Excellent for fermenting lagers as well. The A421 Series controls are single stage, electronic temperature controls with a single-pole, double-throw (SPDT) output relay. The controls feature an adjustable backlit LCD for viewing the temperature and status of other functions, and a three-button touchpad for setup and adjustment. An LED indicates the On/Off status of the output relay. The A421 control is 120 VAC. The A421 controls provide heating or cooling control, sensor offset, temperature setback, adjustable anti-short cycle delay, and a restricted user adjustment mode. The temperature units can be displayed in °F or °C. The temperature adjustment range is -40 to 212°F or -40 to 100°C. The A421 automatically changes from heating and cooling.

Specification:
Temperature Control Range: -50~99°C / -58~210°F
Temperature Resolution: 0.1°C / 0.1°F Temperature Accuracy: ±1°C (-50~70°C) / ±1°F (-50~160°F)
Temperature Control Mode :On/Off Control, Heating and Cooling
Input Power: 100 ~240VAC, 50Hz/60Hz
Temperature Control Output: Max. 10A, 100V~240V AC
Buzzer Alarm: High and Low Temperature Alarm
Sensor Type: NTC sensor (Including)
Sensor Length: 2m / 6.56ft
Input Power Cable Length: 1.5m (5ft)
Output Power Cable Length: 30cm (1ft)
Body Dimension: 140x68x33mm (5.5×2.7×1.3inch)
Socket Dimension: 85x42x24mm (3.3×1.7x1inch)
Ambient Temperature: -30~75°C / -22~167°F
Storage Temperature: -20~60°C / -4~140°F
Humidity: 20~85% (No Condensate)
Warranty: 1 Year

Package Included:
1x ITC-308 Temperature Controller
1x Manual

Features:

Temperature Control Range : -50~99 °C / -58~210 ° F
Temperature Resolution: 0.1 ° C / 0.1° F Temperature
Accuracy: ±1°C (-50 ~ 70°C) / ±1°F (-50 ~ 160° F)
Temperature Control Mode :On/Off Control, Heating and Cooling
Input Power: 100 ~240VAC, 50Hz/60Hz
Temperature Control Output: Max. 10A, 100V ~240V AC
Dimension Body: 140x68x33mm (5.5×2.7×1.3inch)
Socket: 85x42x24mm(3.3×1.7x1inch)
Sensor Length: 2m / 6.56ft
Input Power Cable Length: 1.5m (5ft)
Output Power Cable Length: 30cm (1ft)
Buzzer Alarm: High and Low Temperature Alarm
Temperature calibration
Over-temperature and sensor fault alarm
Heating/Cooling differential function could be set separately for refrigeration and heating to protect temperature controller from violent change.
Sensor Type: NTC sensor (Including)
Ambient Temperature: -30~ 75 ° C / -22~ 167 ° F
Storage Temperature: -20~ 60 ° C / -4~ 140 ° F
Humidity 20~85% (No Condensate)
Warranty: 1 Year

It has certificate of EMC, LVD, RoHS, FCC compliance.

Package Content:
1x Temperature controller ITC308
1x Manual

With the thermostat control you can turn any freezer or refrigerator into a sophisticated lagering device and more accurately control the temperature of your ales. Simply place the temperature probe into the freezer, plug the thermostat into the outlet and then your freezer into the Control. This thermostat has a range from 30 degrees F to 80 degrees F.

Use this handy controller to regulate the temperature in your freezer between 20 – 80F . Great for turning a chest freezer into a keg refrigerator. Strictly a mechanical thermostat for cooling only, it is simple to use and economical. It operates with a gas filled probe on a 6-foot capillary tube. When the gas contracts or expands in the probe, it triggers a mechanical device inside the control which turns the power on or off. There is no probe temperature readout on the dial, so keeping a thermometer inside the refrigerator is highly recommended to keep track of the actual temperature. On most refrigerators, the controller will allow a usable range of 37 to 80 F, while on freezers, the controller will be able to reach its full 20 to 80 F range. Features: Made of stainless steel. Adjustable with the turn of a knob. No drilling necessary. Plug unit into wall and then run the sensor into your freezer. Male and female plug in one. Specs: Temperature dimensions: 4 3/8″ H x 2 1/8″ W x 1 1/2″ D. Cord dimensions: 6′. Remote sensor bulb: 5 1/2″W. Remote sensor bulb capillary tube: 6′. Temperature range: 20 – 80F. Voltage: 120 VAC.

Note: The difference between SF-104 and SF-102: SF-102 has the function of light and compressor, SF-104 has the function of compressor, fan and defrosting.If you need SF-102, please check this ASIN: B01L11NVE8

Features
& Small type integrated intelligent control, direct control of 1P or less (including 1P) compressors.
& Temperature Display / Temperature Control / Manual, automatic defrost heater / evaporator fan control / time, temperature terminated defrost / Set Memory / Parameter Lock / self-diagnosis
Technical parameters
1, external sealed transformer output: AC 12V (a transformer can be equipped with a temperature controller)
2, the temperature probe: NTC, 2 amended (storage temperature, defrost control) 2 m long (regardless of sign)
3, the temperature display range: -45~ 66 oC (-45 ~ 150 oF) Accuracy ± 1oC (± 2 oF)
4, the control temperature range: -45 ~ 45 oC (-45 ~ 120 oF) Default: 0oC (32 oF)
5, Dimension: 77x35x60mm, hole size: 71x29mm
6, the working environment temperature: -10 ~ 60 oC (14 ~ 140 oF); relative humidity 20% ~ 90% (no condensation)
7, the relay contact capacity:
& Compressors: normally open 20A/250VAC (a compressor can be used directly over to pick AC contactor)
& Defrost heating wire: normally open 10A/250VAC (1KW load can be used directly over to pick AC contactor)
& Evaporator fan: normally open 5A/250VAC
Packing list:
External transformer X1
Temperature probe X2

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