Reviews Air Exchange Rate

Cryptocurrency tracker

All crypto-currency in one application, just type the name of the desired currency.
Historical charts of currency exchange rate changes.
You can choose preferred period for charts: 24 hours, 1 week, 1 month, 1 year, all time.
You can add any currency to favorites list and watch only the currency you need.

Perform OSHA and IEC Noise accumulation surveys.
Adjustable Criterion Level, Exchange Rate, and Threshold.
Measures frequency weighted noise exposure and peak sound level simultaneously.
Datalogs up to 12,000 readings when used as a sound level meter.
Stores up to 20 dosimeter surveys. UBS Interface. Includes Windows compatible software to control setup and retrieve or analyze stored data.

Criterion level: 70 to 90 db. (1 db. increments).
Exchange rate: 5 and 3 db. (simultaneously).
Function: lavg, leq, lmx, lmn, lcpk, lzpk, le, twa, lep, d, dose percent, pdose percent.

Criterion level: 70 to 90 db (1 db increments).
Exchange rate: 5 and 3 db (simultaneously).
Function: lavg, leq, lmx, lmn, lcpk, lzpk, le, twa, lep, d, dose percent, pdose percent.

RAPID RESPONSE: An impressive 165Hz refresh rate alongside the 1ms Gray-to-Gray response time allows for faster reactions to in-game situations.Aspect ratio:16:9.
FAST IPS TECHNOLOGY: Fast In-Plane Switching technology maintains image at incredible speed with a 1ms GTG response time that eliminates motion blur ensuring smooth gameplay.
STUNNING COLOR ACCURACY: Rich, consistent colors with clarity and a 99% sRGB color gamut delivered across a wide viewing angle on a Full HD resolution.
OPTIMIZED COMFORT: Flicker-free screen with TUV-certified ComfortView Plus, a hardware solution decreasing harmful blue light exposure and eliminates eye strain when playing for long periods of time.
DELL SERVICES: 3 Year Advanced Exchange Service and Premium Panel Exchange. Find one “bright pixel” and Dell will provide you a free monitor exchange during the limited hardware warranty period.

SUPER SILENT – This pump uses innovative technology with unique damping structure design and materials to achieve super silence during operation. NOT ONLY THE VERY THICK HOUSING, BUT ALSO THE SPECIAL TEXTURE ON THE INNER SIDE OF THE HOUSING significantly lower the noise.
AERATING – This powerful air pump improves the oxygen supply in your tank. It also works great with air-driven decorations.
PERFORMANCE – Energy efficient with powerful air output. Power 4 Watt, Flow rate 50GPH x 2, Air Pressure ≥0.018MPa, for tank size of 40-120 gallons. Comes with DOUBLE outlets.
FLOW CONTROLLER – A flow controller for you to adjust the flow volume freely.
AIR FILTER PAD – Replacement filter pads are included in the package. MOST OF THE AIR PUMPS IN THE MARKET are ignoring the function of the filter pad and doesn’t provide the replacement in the package. The pad works as a filter for the air coming into the pump. When it gets dirty, the flow rate will be lower. Replacing the pad will solve the problem.

USB Rechargeable: Rechargeable battery provides up to 20hrs working time. Compared to other battery aquarium air pumps, this kind of rechargeable....
Powerful Motor & 2 Air Outlets: Small air pump, but equipped with powerful power can generate a large amount of aeration, Max Flow Rate:....
Wide Compatibility: This quiet air pump is perfect for both Freshwater and Marine Aquariums, great to be used for all types of tanks with capacity of....
Safe & Energy-Saving: With 2 check valves to keep water from back flowing into your pump, much safer. with rated power of 4W, this air pump is....
Ultra Whisper Quiet: Minimum 35dB (sound like rusting leaves, ticking watch) in lowest flow rate. It won’t disturb your sleep during it running.....

Includes a swivel air inlet to prevent kinks in the air hose during movement.
Automatic shutoff valve to prevent overfilling.
1.9-quart (1.8 liter) reservoir allows the operator to perform multiple bleeding jobs without emptying.
Bleeds at a rate of up to two quarts (1.9 liters) per minute for increased productivity and features a variable thumb throttle to maintain desired flow rate.
Reservoir and lid feature large, coarse threads to reduce cross threading, and the bench-mountable, molded base keeps the unit secure while removing or replacing the lid.

Steady Output: With 4 outlets which supply 160 gallons of air per hour for tanks up to 200 gallons. Perfect for running 4 sponge filters or air stones together..
High Efficiency: Max air flow rate: 160 GPH.
Power: 10 W. Ideal for aeration in fish tanks, aquariums or ponds to keep your fish healthy..
Adjustable Air Flow: The black rotatable knob on its top allows you to precisely control the air flow. Allow for your desired flow rate to fully oxygenate your fish tank..
Quiet Operation: 4 shockproof rubber feet at bottom keep steady output with minimum vibration. Also help reduce sound to within 40 dB like a quiet whisper in the room..
Running 24/7: Measures 6.4" L x 6" W x 2.3" H. Constructed solidly for constant output. Strong aerator to withstand long-time use and promote oxygen supplement..