Best Relative Pressure Sensor

NIUASH Altimeter, Altimeter Watch, Barometer, Altimeter Compass,Thermometer barometers Weather Instruments，Multifunctional Mechanical high-Precision Barometer, Outdoor Mountaineering Barometer Yellow

...sure, cold and heat, and is suitable for various harsh environments..
The barometer altimeter, with a built-in sensitive air pressure sensor, can measure the real-time atmospheric pressure value of the location.
because the altitude is inversely proportional to the atmospheric pressure, it can be used to measure the relative altitude.
after the altitude value is corrected, the real-time altitude can also be measured..
Barometer, altimeter, thermometer, and compass are four in one, no battery and charger, no maintenance and repair, sturdy and reliable, because it does not need electricity, it is a very good and reliable tool outdoors..
The altimeter barometer can predict future weather changes based on the barometric pressure, so that you can prepare in advance.
easy to carry and reasonable design bring convenience and convenience to your outdoor sports. Owning this barometer is equivalent to owning an altimeter, compass and thermometer..
This barometer and altimeter is a green and environmentally friendly product, pure mechanical structure, specially designed for you to do outdoor sports such as mountaineering, rock climbing, skiing, etc，It is your good partner for outdoor activities and an essential tool for outdoor sports..

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Amprobe THWD-5 Relative Humidity and Temperature Meter with Wet Bulb and Dew Point

Relative humidity (RH) and temperature meter measures temperature, relative humidity (RH), dew point, and wet bulb, and is used for HVAC, indoor air quality, and environmental applications.
Dual-scale thermometer measures wet- and dry-bulb temperature and dew point in F and C.
Capacitive humidity sensor ranges from 0 to 100 percent relative humidity (RH).
Data hold for recording data, and minimum, maximum, and average temperature readings.
Flexible probe reaches inside ducts and other hard to reach areas, and tripod mount stabilizes meter for extended readings.

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Flytec Element Track Paragliding Hang Gliding Paramotor PPG Variometer

...tors) Battery life: ~35 h Operating temperature: 14ºF to 122ºF or -10°C to 50°C Languages: English, German, French Italian, Spanish.
Altimeter Units: m / ft Resolution: 1 m or 1 ft Range: up to 40,354 ft or12,300 m QNH: air pressure indication in hPa or in Hg ALT 1: Absolute altitude ALT 2: Choice of absolute or relative altitude.
Variometer Units: m/s or fpm Graphic indication: ±2000 ft/min. or ±10 m/s Graphic resolution: 40 ft/min. or 0.2 m/s Numeric indication: ±30,000 ft/min or ±300 m/s Numeric resolution.
10 ft/min or 0.1 m/s Averager: selectable from 1 s to 30 s.
Acoustics Volume: 4 levels Vario profiles: Five predefined (weak, regular, strong, ridge soaring, balloon) - individually adjustable Climb tone: selectable lower threshold, frequency and cadence modulation Near-thermal tone: selectable lower threshold and volume adjustment Sink tone: selectable upper threshold and volume adjustment Stall alarm: selectable threshold (requires optional airspeed sensor) Additional vario adjustments: Base frequency, and modulation.
Airspeed Requires optional sensor Units: kph, knots, mph Range: 0 to 74mph or 0 to 120 kph, resolution 1 mph, km/h, kt Calibration: ±50%.

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Devil s Protractor [Explicit]

Precise angle and/or slope measurement with angle meter, bubble level, laser level with Accelerometer or Rotation Vector Sensor. (Check sensor....
Option to measure angle or slope on surfaces not parallel to ground with relative angle measurement mode..
2 orientation axis for measurement.(Move your device left/right or back/forward direction to measure angle).
Option to measure difference between 2 separate measurements with difference measurement mode..
Option to measure angles using very accurate Rotation Vector Sensor, or Accelerometer..

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Hydrofarm APCEM2 Autopilot Desktop CO2 Monitor & Data Logger, Data, White/Blue

CARBON DIOXIDE METER: Autopilot APCEM2 Desktop CO2 Monitor and Data Logger Monitors carbon dioxide, relative humidity, and temperature of your grow room or greenhouse on a clear LED screen.
MEMORY: Digital memory chart shows and records stats over an adjustable 24-hour or 7-day period.
The trend chart shows variable Min/Hr/Day/Wk for readings of CO2/RH/Temperature.
SENSOR & ALARM: 2-channel low drift NDIR gas sensor and audible alarm for low or high CO2 levels.
OPERATING TEMPERATURES: Operates in temperatures 32 to 122 degrees F.
Operating and storage relative humidity (RH): 0-95%, noncondensing.
FUNCTIONALITY: Features multiple hanging options with the hook-and-loop fastener along the back that attaches to an external battery pack (battery pack not included).
Green power supply is compatible with a standard smartphone charger.
Dimensions (L x W x D): 4.7 x 3.6 x 1.1 inches.

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ThermoPro TP280B 1000FT Home Weather Stations Wireless Indoor Outdoor Thermometer, Indoor Outdoor Weather Stations with Swiss-Made Sensor, Inside Outside Weather Thermometer Barometer with Forecast

LONGEST 1000FT RANGE ON THE MARKET: This indoor outdoor thermometer wireless with a market leading remote range of 1,000 feet that allows you to monitor indoor/outdoor temperature/humidity from anywhere in your home.
ACCURATE SWISS-MADE SENSIRION SENSOR: This wireless weather station is equipped with world-leading swiss sensor that is accurate to ±0.5°F.
Weatherproof & rechargeable transmitter enable to work in any weather condition, even in temperatures as low as -40°F(-40℃).
DEPENDABLE FORECASTS WITH MULTI-FORMAT BAROMETER: Featured absolute/relative air pressure modes and a 12-hour history, this digital weather station precisely predicts 24-hour weather forecasts, allowing you to freely plan your outdoor activities.
7″ ADJUSTABLE BRIGHTNESS DISPLAY: The wireless weather station indoor outdoor with 4 brightness options, providing you with clear readings of high/low indicators, trend arrows, and comfort indicators from any viewing angle or in any light condition.
DUAL POWER SUPPLY: This indoor weather station and outdoor thermometer wireless can be powered by either 3 AAA batteries (included) that allow for portability and continued use during power outages, or by a Type-C cellphone charger.

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Autopilot APCEM2 Desktop Hydroponic Gardening CO2 RH Temperature Monitor and Data Logger for Greenhouse or Grow Room, White/Blue, 2 Pack

CARBON DIOXIDE METER: Autopilot APCEM2 Desktop CO2 Monitor and Data Logger Monitors carbon dioxide, relative humidity, and temperature of your grow room or greenhouse on a clear LED screen (2 Pack).
MEMORY: Digital memory chart shows and records stats over an adjustable 24-hour or 7-day period.
The trend chart shows variable Min/Hr/Day/Wk for readings of CO2/RH/Temperature.
SENSOR & ALARM: 2-channel low drift NDIR gas sensor and audible alarm for low or high CO2 levels.
OPERATING TEMPERATURES: Operates in temperatures 32 to 122 degrees F.
Operating and storage relative humidity (RH): 0-95%, noncondensing.
FUNCTIONALITY: Features multiple hanging options with the hook-and-loop fastener along the back that attaches to an external battery pack (battery pack not included).
Green power supply is compatible with a standard smartphone charger.
Dimensions (L x W x D): 4.7 x 3.6 x 1.1 inches.

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AlphaWorks Tire Pressure Gauge LCD Display Inflator Wall Mountable Automatic 110-240VAC + AC102 Brass 1/4 Inch NPT Air Chuck + 30’ Foot Hose with TMPS of: Bar Psi Kpa Kgf for All Vehicle Tires

...tandard of choice for the everyday Hard Working American!.
UNIT, CHUCK & HOSE SPECS - Accuracy: ±0.02bar / ±0.3psi. Inlet/Outlet: 1/4" Male NPT / 1/4" Female NPT. Max Inlet Air Supply Pressure: 10. 5 bar, 152 psi, 1050 kpa, 10.5 kg. Scale/Inflation Range: 0.2-12 bar / 3-175 psi / 20-1206 kpa / 0.2-12. 3 kg/cm². A Relative Humidity of: up to 95% RH (non-condensing). Blue Polyurethane Pneumatic Spiral 30' (9m) Long Hose W.P. 300 psi / 20 bar (B.P. 60 bar) / Quick Connect Male Fitting (Can inflate accurately with hoses up to 164' (50m)..
ELITE QUALITY DESIGN - Modern aesthetic look, lightweight, shock resistant construction & vandal resistant switches for long life. Large easy to read LCD display & back-light. Suitable working temperatures of: 14°F-122°F (-10°C-50°C). This unit runs on a Power Supply voltage & Max Wattage of: AC 110-240V (50-60Hz) @ 10W MAX & will give audible & visual warnings, for pressure rating. MOUNTING ACCESSORIES: Hook including x1 M6*38 screw kit, Wall Mounting Bracket including x4 M4. 8*38 screws..
ADVANCED CAPABILITIES - Comprehensive diagnostics & error reporting, w/ a Touch ABS case for precision measuring in all vehicle types. Highly Accurate readings of tire pressure in TMPS Units of Measure: bar, psi, kpa, kgf. (Indiv....

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Manometer, 12 Selectable Units Differential Pressure Gauge, Dual-Port Manometer Gas Pressure Tester, Digital Pressure Gauge with Backlight, Professional Air Pressure Meter, Handheld HVAC Manometer

...top of the differential pressure meter, one for testing positive pressure and the other for testing negative pressure. You can select any port to test the pressure difference (P1-P2) between the two areas. Using the single pipe connector of the air pressure meter, you can quickly measure the current pressure value (relative to the current atmospheric pressure)..
【Digital Manometer with Data Recording & Holding Function】Gas manometer data storage: 100 groups.
the user-friendly design of the manometer gas pressure tester recording test data function is convenient for users to view after testing.
automatic shutdown: no operation after about 15 minutes.
low battery reminder: ≤6.8V 【Note】Battery: 1* 6F22, 9V, 250mAh (not included in the package).
【Manometer Gas Pressure Tester with Data Zero Function】The "return to zero" function of the manometer gauge data is easy to operate so that your readings are accurate. If you are hand holding the device, it tends to drift from zero readings, so it is best to place the manometer on a stable surface, zero it out, leave it there to take the accurate reading..
【What Do You Get?】1x Digital Manometer、1x Barb Metal Connector (1/8 inch)、2x Soft Tubes (250mm)、1x Package box、1x User manual. We always....

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