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The Conventional Temperature And Humidity Controller LY-WK, developed by Zhejiang Liyi Technology Co., Ltd., is a cost-effective and reliable device for indoor environment regulation. It targets scenarios requiring basic temperature and humidity control (e.g., power equipment cabinets) by detecting environmental parameters via an external temperature and humidity sensor. When temperature or humidity exceeds preset limits, the controller drives external loads (e.g., heaters, fans) to adjust the environment until parameters return to normal. With its compact size, low power consumption, and high accuracy, it is an essential tool for protecting power equipment (e.g., switch cabinets, terminal boxes) from damage caused by extreme temperature or humidity.

Cost-Effective Solution: More economical than smart controllers, perfectly meeting the basic temperature and humidity control needs of ordinary users and small businesses.
High-Precision Monitoring: Equipped with high-precision chips and reliable sensors, ensuring temperature accuracy of ±0.5℃ and humidity accuracy of ±5%RH.
Flame-Retardant Materials: Adopts flame-retardant plastic housing, complying with industrial safety standards and reducing fire risks in electrical cabinets.
Low-Power Consumption: Power consumption is less than 2W, enabling 24/7 operation without increasing energy costs.
Compact Size: Measures 48×48×78mm³, fitting in narrow spaces (e.g., small terminal boxes) where large controllers cannot be installed.
Easy Installation & Operation: No professional training required — users can complete assembly and wiring in minutes with the included manual.
Wide Load Compatibility: Supports dual working voltage (3A) and works with various loads (heaters, fans, ventilation devices).
Stable Performance: Designed for long-term use under strong electric/magnetic fields, ensuring consistent operation in harsh industrial environments.
Operating Power | AC 220±10%,50HZ |
Conditions of use | Temperature -20℃~70℃;Relative humidity≤95%RH |
span of control | Temperature -9℃~99℃;Humidity 0~99%RH |
accurate | Temperature 0.5℃;Humidity 5%RH |
Control backlash | Temperature 0~20℃;Humidity 0~20%RH |
load capacity | Double working voltage 3A |
pressure resistance | 50Hz, 1000V alternating current duration 1 min |
power consumption | <2w |
volume | 48✖48✖78mm3 |
Power Equipment Cabinets: Used in high/low voltage control cabinets, ring network cabinets, and box-type substations to prevent condensation or overheating of internal components.
Terminal Boxes & Instrument Boxes: Regulates temperature and humidity in small electrical boxes, protecting sensitive instruments (e.g., meters, sensors) from damage.
Hand-Operated Switch Cabinets: Ensures stable operation of manual switchgear in factories and workshops by maintaining optimal environmental conditions.
Industrial Control Panels: Integrates with production line control panels to prevent equipment malfunctions caused by extreme temperature/humidity.
Building Electrical Closets: Maintains suitable conditions for electrical wiring and junction boxes in commercial buildings, reducing short-circuit risks.
Choose the right Liyi temperature and humidity controller based on your monitoring needs (refer to the table below):
Model Product Function | LY-WK | LY-WSK-ZB | LY-WSK-Z | LY-W2K-Z | LY-S2K-Z | LY-SK-Z |
1-way temperature | ● | × | ● | × | × | × |
1-way humidity | × | ● | ● | × | × | × |
2-way temperature | × | × | × | ● | × | ● |
2-way humidity | × | × | × | × | ● | ● |
Disconnection Alarm | × | × | × | × | × | × |
Notes: ●:Standard ⭕:Optional ×:Not have | ||||||
Mount the external temperature and humidity sensor away from heat sources (e.g., heaters) and water sources (e.g., pipes) to ensure accurate detection.
Secure the sensor with screws to avoid displacement caused by vibration.
Connect the controller to AC 220V power (ensure voltage matches to prevent burnout).
Wire external loads (e.g., heaters) to the load terminals (Terminals 2~5), ensuring the load current does not exceed 3A.
Preset temperature/humidity limits via the controller’s buttons (e.g., set temperature upper limit to 40℃, lower limit to 5℃).
Adjust control backlash (e.g., 5℃ for temperature) to avoid frequent load switching.
Every 3 months: Calibrate the sensor using a standard temperature/humidity meter to maintain accuracy.
Monthly check: Inspect load wiring for looseness and clean the controller surface to remove dust.
If an alarm occurs (e.g., over-temperature), stop the device, check the load and sensor, and restart after troubleshooting.
