AC Infinity’s Controller 75 is a dual‑outlet desktop climate controller for outlet‑powered devices. It measures air temperature, humidity, and calculates VPD using a 12‑ft probe with a waterproof thermal‑alloy head, displaying readings on a backlit LCD in °F or °C. Two grounded outlets support up to 1100 W combined and can be programmed independently with triggers for temperature, humidity, and VPD, plus timers, cycles, schedules, and adjustable buffers. Model CTR75P connects to the AC Infinity app via Bluetooth or Wi‑Fi to enable remote access, notifications, historical charts, and CSV export, with backup memory to retain settings after power loss. Typical uses include automating inline or oscillating fans for ventilation and powering humidifiers or heat mats in grow tents, terrariums, and propagation setups.