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Description
co2 controller for grow tent CO2 Controller for Grow Rooms , CO2Meter.comNEW! As of 4 2025 The RAD 0502 features a built in solenoid valve and plug and play wiring for effortless setup, you can optimize your grow room environment in minutes. The RAD 0502: CO2 Controller for Grow Rooms is designed to maximize plant yields and help growers save money ensuring the right amount of CO2 is used every time. This device is used across indoor greenhouses, cultivation facilities, grow rooms, hydroponic farms, mushroom farms, or
NEW! As of 4/2025 The RAD-0502 features a built-in solenoid valve and plug-and-play wiring for effortless setup, you can optimize your grow room environment in minutes.
The RAD-0502: CO2 Controller for Grow Rooms is designed to maximize plant yields and help growers save money ensuring the right amount of CO2 is used every time.
This device is used across indoor greenhouses, cultivation facilities, grow rooms, hydroponic farms, mushroom farms, or anywhere enhanced CO2 levels are used to maximize plant growth.
Features
- Controls up to 2 zones (for small or large facilities)
- User configurable to control a CO2 tank and regulator
- Built-in temperature, humidity, and light sensors
- Customize your CO2 setpoints for high or low levels
- Dual mode for greenhouse or mushroom applications
- *Included* Solenoid Valve to turn on/off the flow of CO2
**All Sales Are Final**
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Specifications
- Measurement Range: 0-3,000ppm CO2
- CO2 Sensing Method: Non-dispersive Infrared (NDIR)
- Target Gas Ranges: 0-2,000ppm and 0-5,000ppm
- Measurements: Requires 1 liter per minute of constant flow per channel
- Resolution: 1ppm @ 0-1,000ppm; 10ppm above 1000pm
- Dimensions: 4.96 x 6.70 x 2.65 inches
- Accuracy: ±70ppm or ±5% CO2
- Sensor Response Time: < 2 minutes
- Operating Temperature: -20°C to 60°C
- Sensor Cables: CAT5e
-
Relays: 2 relays, either (Normally Open) NO or (Normally Closed) NC
Solenoid Valve:
-
- Valve: 2-way, normally closed (DC-activated)
- Gas Ports: 1/4″ NPT inlet and outlet (standard pipe threads)
- Includes: 1/4″ NPT to barb fittings for tubing
Electrical
- Power: Adapter 110/220 VAC
- Power Consumption: 1 W max @ 115 VAC 60 Hz | 2 W max @ 230 VAC 50 Hz
- Power Supply: <5A @ 250 VAC, SPST
Included
- (1) Indoor CO2 Controller
- (2) Remote CO2 Sensors
- (2) CAT5e Cables - 25' ft.
- (1) Wall Plug Safety Strap
- (1) Mounting Bracket
- (1) Solenoid Valve
- (6) Screws
- (1) 110/220 VAC Power Supply
- (3) International Power Adapters
Warranty
- 1 year - see CO2Meter Terms and Conditions.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 4
Perfect EXCEPT for the Noise
Size: 30mm, Color: Pink/Rose Gold-Tone/Cream/30mm, Size: 30mm, Color: Pink/Rose Gold-Tone/Cream/30mm
My ideals for a watch are: full numerals, easy to read (good contrast and numbers, lines for the minutes and hours), light up function, case under 33mm, swappable bands, and preferably cute, in either silver color or rose gold color.
This one checks all the boxes... And is the only one I've found which does. You can see on the picture that I replaced the band.
Now here's the problem... The watch is LOUD! The analog watch I'm replacing is entirely quiet except when brought to the ear. This one... I hear it from feet away. My husband hears it from feet away too. I've tried two of the same model and they're equally loud. It gets distracting for me. Not at night, as the blankets mute it up, but during the day. Holding my phone typing this up, or during work, conversations... even when driving I hear it over the engine and traffic noise, because the driving position brings it closer to me, tick tick tick tick. It's impressive how that sound can carry.
I've read on the internet a few people saying they improved the noise of their Timex watches by removing the hand that does the seconds. I love having it but I might just get desperate enough to try this little operation. This is the perfect watch for me except for that problem. So sad.
(EDIT: I did end up trying to remove the seconds hand. It did quiet down the watch. Unfortunately, I also broke the watch in the process of putting it back together. I've decided to cut my losses and I'm now wearing a Fossil Carlie Mini (roughly $100, and available on Amazon, entirely quiet). Doesn't light up or have full numerals but what can you do. I wear a cheap digital that can light up at night and make do.)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026
★★★★★ 5
Love it
Size: 30mm, Color: Pink/Rose Gold-Tone/Cream/30mm, Size: 30mm, Color: Pink/Rose Gold-Tone/Cream/30mm
This is a great simple watch. It fits my wrist well and is very comfortable. I really like the champagne/pink band along with the rose gold face. I didn’t realize if you push the button on the side of the face that it lights up for easy reading in the dark. Nice detail! Feels like really good quality! I hope it lasts me a long time.
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Reviewed in the United States on March 17, 2026
★★★★★ 5
Beautiful and reliable!
Size: 30mm, Color: Pink/Rose Gold-Tone/Cream/30mm
I just love it. It is beautiful, comfortable and I love the back light! I tried two or three smart watches that were reasonably priced and none of them worked well. I did not want to spend several hundred dollars for a watch. I finally decided on a good reliable watch and chose time mix. I’m really glad I did.
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Reviewed in the United States on April 6, 2026
★★★★★ 5
Nice watch!!
Size: 30mm, Color: Pink/Rose Gold-Tone/Cream/30mm
Works great! I've got a larger wrist and it fits me perfectly! I love the Indiglow feature! I can see what time it is in the middle of the night!!
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Reviewed in the United States on April 19, 2026
★★★★★ 5
Very nice watch
Size: 30mm, Color: Black/Gold-Tone/Cream/30mm
Very nice Timex watch reasonably priced.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
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