Barometers
Measure atmospheric pressure changes in both inches of mercury (Hg) and millibars (mbar).
Barometric Pressure | Overall | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Range | Accuracy | Graduation Marks | Digit Ht. | Dia. | Ht. | Wd. | Dp. | Mounting Location | Batteries Included | Mounting Hole Dia. (No. of) | Fasteners Included | Certification | Each | |
Dial Display | ||||||||||||||
| 28.1 to 31.7 in. of Hg 715 to 805 mmHg 954 to 1,073 mbar | ±0.05 in. of Hg ±0.05 mmHg ±0.05 mbar | 0.05 in. of Hg 1 mmHg 0.5 mbar | __ | 4" | __ | __ | 1 1/4" | Freestanding, Wall | __ | 3/8" (1) | No | Calibration Certificate Traceable to NIST | 00000000 | 0000000 |
LCD Display with Audible Alarm and Trend Indicator | ||||||||||||||
| 20 to 32 in. of Hg 509 to 812 mmHg 677 to 1,083 mbar | ±0.045 in. of Hg ±1.14 mmHg ±1.5 mbar | __ | 1 1/2" | __ | 2 7/8" | 9" | 1 1/2" | Freestanding, Wall | Yes | 1" (1) | No | __ | 000000 | 000000 |
Desktop Multifunction Barometers
Check temperature, relative humidity, atmospheric pressure, and time with a single barometer.
Remote-reading barometers wirelessly monitor outdoor temperatures and relative humidity as well as indoor conditions. They'll transmit readings from up to 200 feet away.
Direct-reading barometers that hold 525,600 readings store about two years’ worth of data. They’re often used in laboratories because they continuously monitor conditions, so you can track changes over time. Use their USB-A connection to transfer stored data to your PC with a USB cord (not included).
Barometric Pressure | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. Transmission Distance, ft. | Range | Accuracy | Altitude Measuring Range, ft. | Features | No. of Readings | Ht. | Wd. | Dp. | Data Connection Type | Battery Size (No. Required) | Batteries Included | Mounting Hole Dia. (No. of) | Fasteners Included | Each | ||
Remote Reading Barometers with LCD Display | ||||||||||||||||
| A | 200 | 31.15 to 32 in. of Hg | ±0.15 in. of Hg | __ | Audible Alarm, Clock, Trend Indicator | __ | 4 1/4" | 6 1/4" | 1 1/4" | __ | AA (4), AA (2) | No | 5/16" (1) | No | 0000000 | 000000 |
Direct Reading Barometers with LCD Display and Calibration Certificate Traceable to NIST | ||||||||||||||||
| B | __ | 14.5 to 30 in. of Hg | ±0.12 in. of Hg | __ | Audible Alarm, Clock, Trend Indicator | __ | 4" | 3" | 1" | __ | AA (3) | Yes | 3/8" (1) | No | 0000000 | 000000 |
| C | __ | 500 to 1,030 mbar | ±4 mbar | -320 to 8,200 | Audible Alarm, Clock, Trend Indicator | 525,600 | 5 1/2" | 3 1/4" | 1" | USB-A | AAA (3) | Yes | 3/8" (1) | No | 0000000 | 000000 |
Compact Multifunction Barometers
Check temperature, atmospheric pressure, and altitude wherever you go with these palm-sized barometers.
Barometers with data-recording software save the measurements they display. Connect them to your PC with their USB-A plug to program alarms, set intervals for data collection, and visualize your data with multiple different views. For easy analysis, you can also export your data to Excel. Download a free app to control these barometers with your Android device.
Barometric Pressure | Altitude Measuring Range | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Display | Range | Accuracy | Min., ft. | Max., ft. | Features | Includes | Ht. | Wd. | Dp. | Operating System Compatibility | Data Connection Type | Batteries Included | Each | ||
Barometers | |||||||||||||||
| A | LCD | 0.88 to 482.23 in. of Hg | ±0.06" Hg | __ | 30,000 | Audible Alarm, Clock, LED Indicator | Data-Recording Software | 1 1/4" | 3 3/4" | 3/4" | Android 4.0 or Later, Windows 7 or Later | USB-A | Yes | 00000000 | 0000000 |
Barometers with Calibration Certificate Traceable to NIST | |||||||||||||||
| A | LCD | 0.88 to 482.23 in. of Hg | ±0.06" Hg | __ | 30,000 | Audible Alarm, Clock, LED Indicator | Data-Recording Software | 1 1/4" | 3 3/4" | 3/4" | Android 4.0 or Later, Windows 7 or Later | USB-A | Yes | 00000000 | 000000 |
| B | LCD | 8.85 to 32.45 in. of Hg | ±0.24" Hg | -2,250 | 29,500 | Clock, Compass, Stopwatch | __ | 3 3/4" | 2 3/4" | 3/4" | __ | __ | Yes | 00000000 | 000000 |
Hand-Held Weather Meters
Take field measurements of temperature, dew point, heat index, wind chill, wind speed, and relative humidity.
| Display | Digit Ht. | Resolution | Ht. | Wd. | Dp. | Housing Material | Includes | Batteries Included | Each | |
| LCD | 3/8" | 0.1 | 4 7/8" | 1 7/8" | 1 1/8" | Plastic | Carrying Case, Lanyard | Yes | 000000 | 0000000 |
Rugged-Service Weather Stations
Operates on 8-15 VDC. Output is pulse for wind speed and analog voltage for wind direction. Optional line driver converts the output into 4-20 mA for use with standard PLCs (programmable logic controllers).
Wind Speed | Wind Direction | Wind Speed/Wind Direction Sensor | ||||||
|---|---|---|---|---|---|---|---|---|
| Range | Accuracy | Range | Accuracy | Mounting Location | Sensor Housing Material | Sensor Power | Each | |
| 0 to 134 mph | ±5% | 0 to 360° | ±5° | Pipe | Plastic | Electrical | 0000000 | 000000000 |
Wireless Weather Stations
Monitor nine different weather conditions up to 1,000 feet away. The outdoor weather sensor measures outdoor temperature, humidity, wind speed and direction, rainfall rate, total rainfall, barometric pressure, heat index, wind chill, and dew point. It wirelessly transmits readings to the console by radio signal. Console has built-in sensors to measure indoor temperature and humidity. Console can be placed on a desk or mounted to a wall. They cannot be sold to the listed areas due to product registration requirements.
| Max. Transmission Distance, ft. | Mounting Location | Console Housing Material | Sensor Housing Material | Sensor Power | AC Voltage Range | Cord Lg., ft. | Electrical Connection | Features | Batteries Included | Cannot Be Sold To | Each | |
| 1,000 | Pipe, Wall | Plastic | Plastic | Solar | 100 to 240 | 10 | Two-Prong Plug | Battery Backup | Yes | Outside United States, Canada, and Mexico | 0000000 | 0000000 |
Multifunction Smartwatches
Keep your phone in your pocket and your hands free—these smartwatches perform a variety of functions on your wrist. They connect to Apple and Android phones via Bluetooth, informing you when calls, texts, and other notifications arrive. Designed for harsh environments and rugged use, they meet military standards for resistance to hot and cold temperatures, shock, splashes, and submersion in up to 100 meters of water. These watches have a compass and GPS for tasks such as navigation, tracking and saving location coordinates, and calculating the area of a location by walking the perimeter. With weather and elevation monitoring, you can set the rate of barometric pressure change that will trigger a storm alert. These watches track health and fitness metrics over time, including heart rate, blood oxygen levels, and exercise. They have a solar battery in addition to a rechargeable lithium-ion one to extend the time between plug-in charging.
Display | Housing | Band | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Length | Width | Display Time | Temperature Range, °F | Material | Color | Material | Color | Closure Type | Battery Life | Features | Specifications Met | Each | |
| 7/8" | 7/8" | 12 hr., 24 hr. | 0° to 140° | Fiber-Reinforced Plastic | Black | Silicone | Black | Buckle | 28 days | Compass GPS Navigation Health and Fitness Tracking Night Vision Mode Weather and Elevation Monitoring | MIL-STD-810 | 0000000 | 0000000 |
Environmental-Monitoring Modules for Development Boards
Keep equipment running and working conditions safe—these modules add air quality tracker capabilities to your development board. Each module gathers data on air conditions, ranging from temperature and humidity to carbon dioxide or volatile organic compound (VOC) levels. These modules easily connect to boards and other components with Qwiic cords or by soldering.
Modules with a temperature, humidity, and barometer sensor are often used as part of an automated system that runs equipment based on the weather. For instance, you can use them in a system that will turn on a humidifier if humidity dips below a certain level.
Modules with a temperature, humidity, air quality, and barometer sensor give you the most comprehensive picture of air conditions in your facility. They directly measure the amount of VOCs and give you an estimated measurement of carbon dioxide based on VOC levels. They monitor air quality using Germany’s Air Quality Index (AQI).
| Measures | Temp. Range, °C | Relative Humidity | Barometric Pressure | Input Voltage  | I2C Address | No. of Qwiic Connections | Lg. | Wd. | Each | |
| Temperature, Relative Humidity, Barometric Pressure | -40° to 85° | 0%-100% | 8.9-32.5 in. of Hg | 1.71-3.6V DC | 0x76, 0x77 | 2 | 1" | 1" | 0000000 | 000000 |
| Measures | Temp. Range, °C | Relative Humidity | Equivalent Carbon Dioxide Concentration | Total Volatile Organic Compound | Barometric Pressure | Input Voltage | I2C Address | No. of Qwiic Connections | Lg. | Wd. | Each | |
| Temperature, Relative Humidity, Equivalent Carbon Dioxide, Total Volatile Organic Compound Concentration, Air Quality Index, Barometric Pressure | 0° to 65° | 20%-80% | 400-650,000 ppm | 0-65,000 ppb | 8.9-32.5 in. of Hg | 1.2-3.6V DC | 0x52, 0x53, 0x76, 0x77 | 2 | 1" | 1" | 0000000 | 000000 |