Greenhouse Temperature Controller 12V 24V DC Automatic Motor Vent Thermostat with Dual Sensor Accuracy

HS667 Thermostat for Single Motor Film Roller Machines and Greenhouse Vent Control Overview A programmable electronic thermostat designed to control single 12V or 24V DC film roller motors for greenhouse ventilation and rollup film systems. The unit drives one motor only and controls motor forward and reverse to open or close vents for cooling or insulation according to temperature settings. Key benefits Automatic temperature control: Starts or reverses the DC motor based on shed temperature to maintain set opening and closing temperatures. Accurate sensing: Uses two temperature inputs and displays the averaged temperature value for more reliable control. Flexible timing: Multiple adjustable timers for run limits, turn and stop intervals, start delays, and dehumidification cycles allow precise control of motor operation and film movement. Simple compatibility: Available in 12V single motor and 24V single motor versions to match common DC motor systems. Each model drives one motor only. Compact and easy to retrofit: Suitable for fitting to existing film roll machines and greenhouse vent mechanisms for automated operation. What it controls and how it works Controls a twowire DC motor to rotate forward or reverse. The motor is coupled to external mechanical devices that open or close vents or roll film. The thermostat evaluates shed temperature against two set limits: open temperature and close temperature. When temperature meets the configured conditions the controller actuates motor movement to achieve cooling or insulation. Technical specifications Model: HS667 thermostat Power options: DC 12V or DC 24V (select when ordering) Thermostat rated current: 24V 16A noted in product information (use appropriate power selection) Motor compatibility: 12V or 24V DC twowire motor, single motor only Maximum motor power: 120W Temperature detection: Two sensors, displayed as the averaged temperature value Temperature detection range: from 9 to 70 C; thermistor type 10K 3435 Temperature control range: 7 to 50 C Factory default temperatures: open 30 C, close 27 C Display: open and close temperatures shown as twodigit integers; temperature value shown with 0.1 C resolution; real time clock display Forward travel time limit: 1 to 60 minutes, default 25 minutes (cannot be set to 0) Turn/stop time setting: 1 to 999 seconds, default turn 50 seconds, stop 30 seconds Forward delay time: 1 to 99 seconds, default 5 seconds Dehumidification cycle settings: forward 1 to 30 minutes and delay 1 to 30 minutes, default forward 8 minutes, delay 10 minutes Important notes Each model drives only one motor: 12V single motor model and 24V single motor model both support one motor only. Remote control battery not included due to restrictions. Please provide your own battery for the remote. Typical applications Greenhouse ventilation: Automate vent opening and closing to control internal temperature for plant growth and climate management. Film rollup shed covers: Drive a single motor to roll and unroll film for temperature control and protection of storage or crop areas. Small agricultural structures and DIY projects: Retrofit existing film roller machines or build a programmable motorized vent system for seedling houses, cold frames, or temporary shelters. Installation and use tips Select the correct voltage model to match the motor and power supply: 12V for 12V motor installations, 24V for 24V motor installations. Verify motor power does not exceed the 120W maximum rating. Use the provided timer and delay settings to prevent continuous motor overrun and to configure dehumidification cycles as needed. This HS667 thermostat provides precise, programmable control for single motor film roller and vent systems, improving automation and making temperature management more consistent and hands .