Lights

Lights

Find the best indoor grow lights for your greenhouse garden. We have over 1000 products in our lighting category including High Intensity Lights (Hight Pressure Sodium & Metal Halide), LEDs, Induction Lights, Fluorescents, CFLs, Plasma, and more. To learn more about HID lighting read our buyers guide. More »

Nutrients

Nutrients

Check out our Nutrient Buyers Guide to help you purchase the right nutrient for your growing needs. Find the best nutrients for soil, soilless, and hydroponic gardens. Choose from the top brands including: Advanced Nutrients, Botanicare, Earth Juice, FoxFarm, General Hydroponics, Heavy 16, Technaflora, and more! More »

Air - Water - CO2

Air - Water - CO2

Search this category for products relating to CO2, Fans, Ventilation, A/C, Chillers, Pumps, Tubing, Water Components, and more. Not sure what size fan you need? View our post on Choosing The Correct CFM Fan. Also view our Fan Noise Test. More »

Soil - Media

Soil - Media

Shop for different media depending on your style of growing. We carry hundreds of sale-priced media for your growing needs! More »

Pots - Trays

Pots - Trays

We carry all of the essential hydroponic and soil gardening containers. Our large selection of pots, mesh pots and net pots, grow bags, flood tables, reservoirs, benches/stand, and buckets, will ensure you have the right container for your gardening media. More »

Plant Care

Plant Care

We carry all your basic and expert needs to combat any pests or diseases in your grow room. Ranging from organic sprays and fungicides to sticky traps and bug screens we have everything that can protect, prevent, and destroy all the harmful elements that can develop in your garden. More »

Propagation

Propagation

The process of creating new plants from a variety of sources: seeds, cuttings, bulbs and other plant parts. We carry everything you need to get your cuttings or seedlings started. Some of our most popular items are:Clonex, Rootswell Rooting Plugs, & Grodan Rockwool A-OK Plugs. More »

Climate Control

Climate Control

If you are ready to take your indoor gardening supplies to a whole new level, environmental controls are the way to go. The controls we offer provide features like CO2 enrichment and monitoring, cooling thermostats, cycle light timers and fan speed control. We also have environmental controllers that do it all. More »

Systems

Systems

Find the best hydroponic or indoor gardening system to fit your specific needs and preferences. We have all types of hydroponic systems, including ebb and flow, deepwater culture, aeroponics, nft, and more. More »

Tents - Greenhouse

Tents - Greenhouse

Find everything you need to build and maximize the potential of your grow room. We have tents, reflective materials, drying racks and much more. More »

Tools - Gear

Tools - Gear

Get the right tool for the job. We have over 250 instruments to help you accomplish your goals: including measuring materials, loupes, microscopes, trimming devices, scissors, extraction bags, bubble machines, books, plant stakes & cages, and more. More »

 

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Myron L Ultrapen PT2 pH & Temperature Pen

ultrapenpt2_2

The Myron L Ultrapen PT2 pH & Temperature Pen is designed to be extremely accurate, fast and simple to use in diverse water quality applications. Advanced features include automatic temperature compensation; highly stable microprocessor-based circuitry; user-intuitive design; and waterproof housing. A true one-handed instrument, the PT2 is easy to calibrate and easy to use. To take a measurement, you simply push a button then dip the pen in solution. Results display in seconds. HIGH PERFORMANCE FEATURES Accuracy of ±0.01 pH 1, 2 and 3 Point Calibration Proprietary Sensor Design Automatic temperature compensation Reliable Repeatable Results Rugged, reliable, shock-resistant fully encapsulated electronics Durable body constructed of aircraft aluminum Simple one button function High capacity N-type battery included Waterproof APPLICATIONS Agriculture Hydroponics Desalination Aquaculture Pharmaceutical Boilers and Cooling Towers Fountain Solutions for Printing Horticulture Wastewater Pool and Spa Food and Beverage Irrigation Reverse Osmosis Plus Many More! SPECIFICATIONS pH Temperature Range: 0.00-14.00 pH 0 – 71° C / 32 – 160° F Accuracy: ± 0.01 pH (After Wet Calibration) ± 0.1 ºC / ± 0.1 ºF Repeatability: ± 0.01 ± 0.1 ºC / ± 0.1 ºF Resolution: 0.01 pH 0.1 ºC / 0.1 ºF Time to Reading Stabilization: 10-30 seconds Power Consumption: Active Mode 37 mA, Sleep Mode 2 µA Temperature Compensation: Automatic to 25ºC Physical Dimensions: 17.15 cm L x 1.59 cm D or 6.75 in. L x .625 in. D Weight: 54 g/1.9 oz. (without soaker cap and lanyard) Case Material: Anodized Aircraft Aluminum with Protective Coating Battery Type: N type, Alkaline, 1.5V Calibration Solutions: pH 4, pH 7, pH 10 Operating/Storage Temperature: 0 – 55ºC or 32 – 131ºF Enclosure Ratings: IP67 and NEMA 6 EN61236-1: 2006 – Annex A: 2008: Electrostatic discharge to case of instrument may cause PT2 to spo

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