Temperature and humidity controller and jumbo display for green room applications

Green room (such as horticulture, mushroom cultivation, seed storage, or plant propagation), a temperature and humidity controller with a jumbo display is designed to continuously monitor environmental conditions and automatically control heating, cooling, humidification, and dehumidification equipment.

Typical features include:

• Temperature measurement: -20 deg C to +80 deg C (or wider)
• Humidity measurement: 0-100% RH
• Large LED jumbo display: 2-6 inch high digits for long-distance viewing
• Dual display: Simultaneous temperature and humidity readout
• Programmable setpoints with high/low alarms

Relay outputs to control:

• Heater: Cooling fan/air conditioner
• Humidifier: Dehumidifier or exhaust fan

• Temperature: -/+ 0.5 deg C
• Humidity: -/+2-3% RH
• Sensor: Digital industrial sensor with cable lengths from 2 to 10 m
• Power supply: 230 VAC
• Optional communication: RS-485 (Modbus), Ethernet, or Wi-Fi for remote monitoring
• Data logging (optional)

A typical control configuration is:

• If temperature falls below the setpoint heater turns ON.
• If temperature rises above the setpoint cooling turns ON.
• If humidity falls below the setpoint humidifier turns ON.
• If humidity rises above the setpoint exhaust fan or dehumidifier turns ON.

These controllers are commonly used in:

• Greenhouses
• Tissue culture laboratories
• Mushroom cultivation rooms
• Seed germination chambers
• Cold rooms
• Food processing areas