Timers & Instruments

The large display shows current temperature and humidity levels, and includes a remote probe for second zone temperature. Records high and low points for both temperature and humidity. Learn More

Measures indoor/outdoor temperature & indoor humidity. Stores the Min./Max. values of the indoor/outdoor temperature and indoor humidity. Switch between °C and °F. Clock function with 12/24 hour time format. Waterproof temperature probe. Comes with 1 AAA alkaline battery. Learn More

Heavy duty lockable metal enclosure. Unbreakable. Heavy duty gear train. Tamper proof design. ½" & ¾" knock outs. Easy to set. T101 - 120 volt/AC/60 Hz/Single pole/Single throw/40 Amp. T104 - 208 to 277 volt/AC/60 Hz/Double pole/Single throw/40 Amp. Learn More

The Mondi Mini Greenhouse Thermo-Hygrometer mounts to the side of your mini greenhouse and reads temperature and humidity inside the dome. It ensures that plants get the start they need by providing growers with the essential real-time information necessary to produce large quantities of healthy plants. In addition to its many uses in the horticultural industry, the Mondi Mini Greenhouse Thermo-Hygrometer has a wide range of applications, such as room environment, food safety, and pet care. Learn More

Digital control board allows for precise timer settings. 3 seconds to 30 minutes "on-time" and 3 minutes to 8 hours "off-time". Very easy to set and use. Will run CO2 with switch set to 'day' position. Use to run a pump with the switch in the 'both' position. Will run an exhaust fan with switch set to 'night' position. Durable powder coated, steel enclosure will stand up to the toughest conditions. The green LED light on the front of the controller shows the user when the timer is 'on'. 15 amps/120 Volt/60 Hz. Learn More

The Apollo 10 - 240 Volt/24 hour timer is the perfect timing solution for your hydroponic systems. With a 10 amp capacity, it's easy to set to run your pumps, fans, etc. The Apollo 10 has 96 non-detachable 15 minute trippers and can be configured in numerous timing schedules. One (1) outlet with 15 minute intervals. Heavy duty construction that is easy to use & simple to operate. Plastic enclosure resists dust, rust and moisture. Only the highest quality components are used. Not for use with digital ballasts. 10 Amps maximum/240 Volts/60 Hz. Learn More

One (1) outlet. 1 minute intervals and run up to 20 schedules per day. Battery back-up feature saves settings in case of power failure. Heavy duty construction. Daylight savings mode to accommodate time change. Plastic enclosure resists dust, rust and moisture. Runs lights, pumps, fans, etc. Do not use with digital ballasts. 10 Amps maximum/240 Volts/60 Hz. Learn More

8 outlets - 4 timed/4 constant. 24 hour mechanical programmable timer with 15 minute intervals. Heavy duty construction. All outlets surge protected up to 1000 joules. Circuit breaker switch. 5 ft power cord set. Plastic enclosure resists dust, rust and moisture. Not for use with digital ballasts. 15 Amps maximum/120 Volts/60 Hz. Learn More

10 seconds to 20 minutes "ON TIME". 1 minute to 12 hours "OFF TIME". Controls timed equipment during daytime only, nighttime only or both. Plastic enclosure protects internal components from dust and moisture. Use to time fans, pumps or CO2. 15 Amps/120 Volts/60 Hz./1/3 HP. 3 year warranty. Learn More

1 minute 'on-time' & 4 minute 'off-time'. Timing is preset - requires no user adjustments. Ideal for aeroponic, ebb & flow or misting applications. Excellent for NFT - Nutrient Film Technique systems. Plastic enclosure protects internal components from dust and moisture. 10 amps/120 Volt/60 Hz. Learn More

The Apollo 4 is compatible with all 120 volt ballasts that feature a Smart Volt power cord. This includes: Sun System 1, 6 & 10, Harvest Pro, Harvest Pro Elite, Budget Gro, Galaxy and Lumatek ballasts. This timer makes lighting control simple! Learn More

The Apollo 5 is compatible with all 240 volt ballasts that feature a Smart Volt power cord. This includes: Sun System 1, 6 & 10, Harvest Pro, Harvest Pro Elite, Budget Gro, Galaxy and Lumatek ballasts. This timer makes lighting control simple! Learn More

The Apollo 6 - 24 hour 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 6 has 96 non-detachable 15 minute trippers and can be configured in numerous timing schedules to meet the most demanding timing requirements. One (1) outlet. 15 minute intervals. Heavy duty construction. Easy to use & simple to operate. Plastic enclosure resists dust, rust and moisture. Do not use with digital ballasts. Learn More

The Apollo 7 - 24 hour 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 minute 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 minute intervals. Battery back-up feature saves settings if power goes out. Plastic enclosure resists dust, rust and moisture. Do not use with digital ballasts. 15 Amps maximum/120 Volts/60 Hz. Do not use with digital ballasts. Learn More

The Apollo 8 - 24 hour 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 minute trippers and can be configured in numerous timing schedules to meet the most demanding timing requirements. Two (2) outlets. 15 minute intervals. Heavy duty construction. Easy to use & simple to operate. Plastic enclosure resists dust, rust and moisture. Do not use with digital ballasts. 15 Amps maximum/120 Volts/60 Hz. Learn More

The Apollo 9 - 24 hour digital 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 9 may be set to 1 minute intervals and run 8 separate schedules per day. It can be configured in numerous timing schedules to meet the most demanding timing requirements. Two (2) outlets with 1 minute intervals. Battery back-up feature saves settings if power goes out. Heavy duty construction with plastic enclosure resists dust, rust and moisture. Not for use with digital ballasts. 15 Amps maximum/120 Volts/60 Hz. HINT: If not functioning properly, plug in for 5 minutes and press the reset button. This generally fixes any problem. Learn More

This controller will run eight (8) HID lights at 240 volts. Features two (2) premium quality Siemens brand relays. Plug dual relay trigger cord set into 24 hour wall timer to run your lights. Multi-tap outlets allow total flexibility. Plastic enclosure resists dust and moisture. 40 Amps/240 Volts/60 Hz./4000 Watts. 3 year warranty. Learn More