Etekcity Digital Handheld TDS Meter, 2% High Accuracy, 0-9990 ppm Blue



Etekcity 025706346481 - The meter is always ready for use - simply remove the protective cap and immerse the probes in the liquid to be measured. An affordable way to test your swimming pool, aquarium, tap water, or appliance water source, reverse osmosis filter, you can finally know whether the water you are drinking or using is acceptable for the application.

Specifications1. Lightweight, handheld design; factory calibrated;CE/FCC/ROHS Approved; 2-Year warranty by Etekcity. Accuracy: ± 2%3. Batteries: 2x 1. 5v lr44 button cells4. Data hold function: Freeze the tds meter measurement to view it out of the water. Easily measure tds of liquid solutionsThe Etekcity TDS meter is the perfect device for testing the purity of liquids.

Etekcity Digital Handheld TDS Meter, 2% High Accuracy, 0-9990 ppm Blue - Weight: 54g8. Automatic temperature compensation makes it even easier to obtain accurate readings, and a hold function lets you take the meter out of the water for easy reading of measurement results. Ideal for many household or laboratory applicationsWith a measuring range of 0-9990ppm, the Etekcity TDS meter is great for a wide range of tasks.

Measuring range: 0-9990ppm2. Atcautomatic temperature compensation: 0-50℃/ 122℉ 7. Operating temperature: 0-99ºC / 32-212ºF6.

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JBtek 4 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM


JBtek 4450182 - JBtek 4 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM - 5v 4-channel relay interface board, and each one needs 50-60mA Driver Current. Be able to control various appliances, and other equipments with large current. Application:supports all mCU control, The industrial field, PLC control, Smart home control. Indication LED's for Relay output status. It can be controlled directly by micro-controller raspberry pi, arm, msp430, dsp, arm, pic, AVR, 8051, Arduino, TTL logic Equiped with high-current relay, AC250V 10A ; DC30V 10A.

5v relay module 4-channelThis is a 5V 4-Channel Relay interface board.

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J R Peters Jacks Classic 20-20-20 All Purpose Fertilizer, 8-Ounce


BFG Supply 52008 - Free measuring spoon enclosed for easy and precise application. Features the highest safety factor to prevent burning when applied as directed. Be able to control various appliances, and other equipments with large current. Features the highest safety factor to prevent burning when applied as directed. 5v 4-channel relay interface board, and each one needs 50-60mA Driver Current.

J R Peters Jacks Classic 20-20-20 All Purpose Fertilizer, 8-Ounce - Free measuring spoon enclosed for easy and precise application. Blended with an enhanced micronutrient package which provides optimal nutrition for strong roots and green foliage. Application:supports all mCU control, PLC control, The industrial field, Smart home control. Indication LED's for Relay output status.

Blended with an enhanced micronutrient package which provides optimal nutrition for strong roots and green foliage. Releases nutrients gradually for up to 4 months of vigorous growth. Equiped with high-current relay, AC250V 10A ; DC30V 10A.

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Adafruit Si7021 Temperature & Humidity Sensor Breakout Board 3251


Adafruit - Application:supports all mCU control, PLC control, The industrial field, Smart home control. Indication LED's for Relay output status. Some light soldering is required to attach the header but it's easy to do. Also comes with some pin header. 3% relative humidity measurements with a range of 0-80% RH. 04 °c temperature accuracy at a range of -10 to +85 °C.

Blended with an enhanced micronutrient package which provides optimal nutrition for strong roots and green foliage. It's summer and you're sweating and your hair's all frizzy and all you really want to know is why the weatherman said this morning that today's relative humidity would max out at a perfectly reasonable 42% when it feels more like 77%.

Adafruit Si7021 Temperature & Humidity Sensor Breakout Board 3251 - Features the highest safety factor to prevent burning when applied as directed. Be able to control various appliances, and other equipments with large current. Enter the si7021 temperature + humidity sensor - the best way to prove the weatherman wrong! This lovely sensor for Silicon labs has ± 3% relative humidity measurements with a range of 0-80% RH, and ±0

4 °c temperature accuracy at a range of -10 to +85 °C. Free measuring spoon enclosed for easy and precise application. We put this nice sensor on a breakout board with a 3.

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General Hydroponics pH Control Kit


General Hydroponics 722080 - Great for all of your environmental sensing projects. The kit contains ph up potassium hydroxide, pH DOWN phosphoric acid, pH Test Indicator, and a test vial. The ph balance is essential for stimulating vigorous plant growth. Be able to control various appliances, and other equipments with large current. It uses i2c for data transfer so it works with a wide range of microcontrollers.

Designed to work superbly in hydroponic environments, both soil-less mixtures and soil grown plants. Using either ph up or ph down, adjust the nutrient solution in your reservoir by adding small amounts of UP or DOWN with frequent re-testing to achieve the desired pH range typically 5. 5 to 6. 5 for hydroponics.

General Hydroponics pH Control Kit - For best results, discard and replace hydroponic solution regularly. Free measuring spoon enclosed for easy and precise application. Blended with an enhanced micronutrient package which provides optimal nutrition for strong roots and green foliage. Equiped with high-current relay, AC250V 10A ; DC30V 10A. To test, add 3 drops of ph test indicator per 5 mL of solution, fill the vial halfway with nutrient solution, and observe the coloration of the liquid in the test vial.

Vital elements in nutrient solution having pH that is too high basic or too low acidic cannot be properly absorbed by plants.

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VicTsing Ultra Silent High Out Energy Efficient Aquarium Air Pump Fish Tank Oxygen AirPump With 2 Air Stone / 2M Silicone Tube


VicTsing VS-RH53-2 - The filtration cotton and the vesicle stone must be washed and replaced in every three months 6. Specification: power rating: 5W Rated Voltage: 220V Max pressure: 0015mpa max displacement: 3. 5l/min size: 120x70x55 mm the length of the tube: 100cm, 115cm How to use: 1. 5. Remember firstly taking out the power supply when it is dropped into water because of careless or find it has the phenomenon of leakage of electricity Is It Suitable for My Fish Tank? The oxygen pump is great for small and medium-sized fish tank Recommend that use it in a 1.

64-feet-deep fish tank and it also works great for both freshwater and marine aquariums. 04 °c temperature accuracy at a range of -10 to +85 °C. Application:supports all mCU control, PLC control, The industrial field, Smart home control. Indication LED's for Relay output status. This is the new aquarium fish tank oxygen air pump hydroponics + 2 air stone + 2M Silicone Tube, With regulating valves, Oil-free compressed air pure, low noise, such as, Multi-level muffler, with multifunction, can effectively regulate the air displacement.

VicTsing Ultra Silent High Out Energy Efficient Aquarium Air Pump Fish Tank Oxygen AirPump With 2 Air Stone / 2M Silicone Tube - It is high-performance, large volume, this section is ideal for small and medium-sized fish tank plus oxygen. The position of placing the air pump must be higher than that of the aquarium, which can avoid the water flowing into the inside place of the machine following the exhaust pipe 3. The deeper water, the bigger air pressure and the less bubble.

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Uxcell BWDYM DC Power Cable Female Connector Plug Pack of 10


Dragonmarts - BISS BWDYM - Application:supports all mCU control, PLC control, The industrial field, Smart home control. Indication LED's for Relay output status. Power plug features one power connector end DC female to another end terminal for CCTV camera connected. It is perfectly suitable for using at all kinds of high-grade aquarium, spout decoration, aquaculture oxygenation, etc.

Low power consumption, high-efficiency, long operating life, stable performance. Double-headed pump, there are two vents, can provide oxygen to two fish tanks at the same time. 3% relative humidity measurements with a range of 0-80% RH. Easy to use, plug and work. Be able to control various appliances, and other equipments with large current.

Uxcell BWDYM DC Power Cable Female Connector Plug Pack of 10 - Includes ph test indicator tube:fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator, and observe the coloration of the liquid in the vial. Includes 8oz bottle of pH Up which is used to elevate it to the desired level. Brand name: excel. It uses i2c for data transfer so it works with a wide range of microcontrollers.

Designed to work superbly in hydroponic environments, both soil-less mixtures and soil grown plants. 5v 4-channel relay interface board, and each one needs 50-60mA Driver Current.

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25 Pack - 2 Inch Round Orchid/Hydroponics Slotted Mesh Net Pot


Hydrofarm - For best results, discard and replace hydroponic solution regularly. 5v 4-channel relay interface board, and each one needs 50-60mA Driver Current. Fashionable and practicable design; Nice shape and unique style; High quality and durable; Light weight and portable. Be able to control various appliances, and other equipments with large current.

Application:supports all mCU control, The industrial field, PLC control, Smart home control. Indication LED's for Relay output status. Includes ph test indicator tube:fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator, and observe the coloration of the liquid in the vial. Includes 8oz bottle of pH Up which is used to elevate it to the desired level.

25 Pack - 2 Inch Round Orchid/Hydroponics Slotted Mesh Net Pot - Great for all of your environmental sensing projects. Durable, UV-resistant plastic. Allows quick drying of media for orchid application. Provides unimpeded water flow for hydroponics application. Numerous but narrow slits properly contain appropriate-sized grow media. 3% relative humidity measurements with a range of 0-80% RH.

Features the highest safety factor to prevent burning when applied as directed.

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Fancierstudio 4 Socket Adapter 4 in 1 Adapter Holder E27 Bulb Lamp Light Socket Splitter For Photo Studio By Fancierstudio 6801


Fancierstudio 6801 - Brand name: excel. Be able to control various appliances, and other equipments with large current. For best results, discard and replace hydroponic solution regularly. Fashionable and practicable design; Nice shape and unique style; High quality and durable; Light weight and portable. It is perfectly suitable for using at all kinds of high-grade aquarium, aquaculture oxygenation, spout decoration, etc.

Low power consumption, high-efficiency, long operating life, stable performance. Double-headed pump, there are two vents, can provide oxygen to two fish tanks at the same time. Suitable for: studio daylight bulbs in photographic use Equiped with high-current relay, AC250V 10A ; DC30V 10A. Blended with an enhanced micronutrient package which provides optimal nutrition for strong roots and green foliage.

Fancierstudio 4 Socket Adapter 4 in 1 Adapter Holder E27 Bulb Lamp Light Socket Splitter For Photo Studio By Fancierstudio 6801 - Contains 8oz bottle of pH down which uses food grade phosphoric acid to lower the pH to to the desired level. 04 °c temperature accuracy at a range of -10 to +85 °C. Includes ph test indicator tube:fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator, and observe the coloration of the liquid in the vial.

Includes 8oz bottle of pH Up which is used to elevate it to the desired level. Product name: dc connector; use for: cctv camera.

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GE Lighting 32304 LED Bright Stik 16-watt 100-Watt Replacement, 1520-Lumen Light Bulb with Medium Base, Soft White, 2-Pack


General Electric Co 32304 - Allows 4 bulbs installed in one single socket for bright illumination. Convert a single bulb light to 4 bulbs light, this is the best choice. Base type: Standard E27 base. Durable, UV-resistant plastic. Allows quick drying of media for orchid application. Provides unimpeded water flow for hydroponics application.

Numerous but narrow slits properly contain appropriate-sized grow media. 4 in 1 studio e27 lamp socket splitter adapter for studio daylight bulbs. Contains 8oz bottle of pH down which uses food grade phosphoric acid to lower the pH to to the desired level. It uses i2c for data transfer so it works with a wide range of microcontrollers.

GE Lighting 32304 LED Bright Stik 16-watt 100-Watt Replacement, 1520-Lumen Light Bulb with Medium Base, Soft White, 2-Pack - Designed to work superbly in hydroponic environments, both soil-less mixtures and soil grown plants. Great for all of your environmental sensing projects. Blended with an enhanced micronutrient package which provides optimal nutrition for strong roots and green foliage. Equiped with high-current relay, AC250V 10A ; DC30V 10A.

5v 4-channel relay interface board, and each one needs 50-60mA Driver Current. 25 pots, 2" wide by 2" High. Features the highest safety factor to prevent burning when applied as directed.

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2 Pack 120mm White LED Case Fan Cooling PC and Light Up Computer Case with Cool Look, Long Life Bearing with DC 15 LED Illuminating PC Case. Quiet Durable Fans Enhance Performance of Tower


VINIUVI VIFNA0103 - Many people are buying several to outfit all their cases. Includes ph test indicator tube:fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator, and observe the coloration of the liquid in the vial. Includes 8oz bottle of pH Up which is used to elevate it to the desired level. Makes a wonderful gift for friends, family, and co-workers.

Enhances your mood and helps you think more creatively. Choose from multiple colors including popular white and more with colors on the way. Application:supports all mCU control, The industrial field, PLC control, Smart home control. Indication LED's for Relay output status. It has an immediate and very positive impact on your PC.

2 Pack 120mm White LED Case Fan Cooling PC and Light Up Computer Case with Cool Look, Long Life Bearing with DC 15 LED Illuminating PC Case. Quiet Durable Fans Enhance Performance of Tower - Allows 4 bulbs installed in one single socket for bright illumination. Contains 8oz bottle of pH down which uses food grade phosphoric acid to lower the pH to to the desired level. Choose your favorite color or a color to match your decor. 3% relative humidity measurements with a range of 0-80% RH. Features the highest safety factor to prevent burning when applied as directed.

. Now you have all the tools needed to immediately install and enjoy your spectacular LED cooling case fan.

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