Environmental Controllers, Monitors, & Timers

For optimal indoor gardening performance, reliable timers and instruments are crucial. As the leading distributor of Hawthorne signature brands, our selection includes the renowned Titan Controls lineup, featuring Apollo Series timers. Additionally, we provide high-precision tools like PAR meters, chlorophyll concentration meters, and temperature and humidity monitoring devices from leading brands like Apogee Instruments and AC Infinity.

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Apogee Instruments MQ-500 Full-Spectrum Quantum Meter (400 nm to 700 nm), 16' (5 m) Cable Lead

Apogee Instruments MQ-500 Full-Spectrum Quantum Meter (400 nm to 700 nm), 16' (5 m) Cable Lead

Q101338
  • Measures photosynthetically active radiation.
  • Hand-held meter displays and stores measurements.
  • Sensor features blue-enhanced silicon photodiode and custom optical filters.
  • Designed for PPFD measurement in various environments: outdoor, greenhouses, growth chambers.
  • Ideal for aquatic environments like saltwater aquariums for coral growth.
  • Features sample and log modes.
  • Sample mode records up to 99 manual measurements.
  • Log mode averages measurements every 30 minutes.
  • Data can be reviewed on LCD or downloaded to a computer.
  • Requires AC-100 communication cable and ApogeeAMS software for computer download.
  • 16 foot (5 meter) cable lead.
Apogee Instruments AC-100 Communication Cable

Apogee Instruments AC-100 Communication Cable

Q101342
  • Essential for downloading data from handheld meters to a computer.
  • Cable contains electronics to convert meter signal to USB signal recognized by computer.
  • ApogeeAMS software included on flash drive.
  • Software compatible with Windows (XP and later) and Mac (10.10 and later) systems.
Apogee Instruments P2-141 microCache and PAR-FAR Monitoring Package, 11.8" (30 cm) Cable

Apogee Instruments P2-141 microCache and PAR-FAR Monitoring Package, 11.8" (30 cm) Cable

Q101346
  • P2-141 microCache and PAR-FAR monitoring package.
  • Includes S2-141-SS PAR-FAR sensor with 11.8 inch cable and MicroCache Bluetooth micro-logger.
  • Powerful tool for monitoring photosynthetically active radiation.
  • Research-grade accuracy for optimal plant growth.
  • S2-141-SS PAR-FAR sensor measures PAR (PPFD) and far-red outputs.
  • AT-100 microCache micro-logger collects over 400,000 data points.
  • Free ApogeeConnect app for real-time measurements.
  • Monitor and graph daily light integrals; download datasets.
  • Custom datalogging intervals.
  • Assure photoperiods.
Mondi Mini Greenhouse Thermo-Hygrometer Green

Mondi Mini Greenhouse Thermo-Hygrometer Green

Q101317
  • Patented design, precisely monitors temperature and humidity levels inside the Mondi Mini Greenhouse or other environments.
  • Comes in Black, Green, Orange, and White.
  • Provides growers with real-time temperature and humidity data, and eliminates the need to open the dome for readings.
  • Ideal for successful large-scale propagation of seedlings and cuttings.
  • Use with Mondi Mini Greenhouse.
Digital Min/Max 303C Temperature and Humidity Meter

Digital Min/Max 303C Temperature and Humidity Meter

Q101320
  • Indoor/outdoor thermo-hygrometer with clock.
  • Separate display for time, humidity and temperature.
  • Memory for the highest and lowest temperature and humidity.
  • Designed to stand or to be hung.
  • Indoor/outdoor temperature range: -50°C (-58°F) - +70°C (+158°F).
  • Humidity measure range: 20% RH - 90% RH.
  • Battery included.
Titan Controls Apollo 7 - One Outlet Digital Timer (10/Cs)

Titan Controls Apollo 7 - One Outlet Digital Timer (10/Cs)

Q100776

The Apollo® 7 - 24 hr digital timer is the perfect timing solution for your hydro systems. With a 15 Amp capacity, it's easy to set to run your pumps, fans, etc. The Apollo® 7 may be set to 1 min intervals and run 8 separate schedules per day. Can be configured in numerous timing schedules to meet the most demanding timing requirements. One (1) outlet with 1 min intervals. Battery backup feature saves settings if power goes out. Enclosure resists dust, rust and moisture. 15 Amps maximum/120 V/60 Hz. HINT: If not working properly, plug in for 5 min and press the reset button. Generally this fixes the problem.

Titan Controls Apollo 8 - Two Outlet Mechanical Timer (10/Cs)

Titan Controls Apollo 8 - Two Outlet Mechanical Timer (10/Cs)

Q100777

The Apollo® 8 - 24 hr timer is the perfect timing solution for your hydro systems. With two outlets and a 15 Amp capacity, it's easy to set to run your pumps, fans, etc. The Apollo® 8 has 96 non-detachable 15 min trippers and can be configured in numerous timing schedules to meet the most demanding timing requirements. Two (2) outlets. 15 min intervals. Heavy-duty construction. Easy to use and simple to operate. Enclosure resists dust, rust and moisture. Do not use with digital ballasts. 15 Amps maximum/120 V/60 Hz.

Autopilot 7-Day Grounded Digital Programmable Timer, 1725W, 15A, 1 Second On/Off, 8 On/Off Cycles

Autopilot 7-Day Grounded Digital Programmable Timer, 1725W, 15A, 1 Second On/Off, 8 On/Off Cycles

Q115855
  • Digital timer designed to automate lighting and other equipment in grow environments.
  • Encourages productive growth with consistent hours of light.
  • Essential for many hydroponic system applications.
  • One second on/off settings.
  • Up to 8 on/off cycles per day.
  • Amperage/wattage/voltage: 15A/1,725W/120V.
  • UL-listed.
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