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Humidity and Temperature Meters
Relative Humidity | Temperature | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Range | Accuracy | Indoor Range | Accuracy | Ht. | Wd. | Dp. | Digit Ht. | Battery Size | No. of Batteries Required | Batteries Included | Mounting Hole Dia. (No. of) | Fasteners Included | Each | |
| 10 to 95% | ±5% | -40° to 158° F/-40° to 70° C | ±2º F/±1° C | 2 7/8" | 4 3/4" | 9/16" | 1/2" | AAA | 2 | No | 1/4" (2) | No | 00000000 | 000000 |
| 25 to 95% | ±5% | 32° to 122° F/0° to 50° C | ±2º F/±1° C | 3 7/8" | 2 5/8" | 5/8" | 5/8" | AAA | 2 | Yes | 3/32" (2) | No | 00000000 | 00000 |
Easy-Read Humidity Meters
Meters with calibration certificate come with a document stating they’ve passed a test for accuracy.
Relative Humidity | ||||||||
|---|---|---|---|---|---|---|---|---|
| Dial Dia. | Housing Material | Range | Accuracy | Graduation Marks | Mounting Location | Fasteners Included | Each | |
| 4" | Stainless Steel | 0 to 100% | ±3% | 1% | Wall | No | 000000 | 000000 |
Relative Humidity | Temperature | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dial Dia. | Housing Material | Range | Accuracy | Graduation Marks | Range | Accuracy | Graduation Marks | Mounting Location | Mounting Hole Dia. (No. of) | Fasteners Included | Each | |
| 4 1/2" | Stainless Steel | 0 to 100% | ±2.5% | 2% | 10° to 170° F/-12° to 75° C | ±1.8° F/±1° C | 5° F/2° C | Wall | 1/4" (1) | No | 0000000 | 0000000 |
| 5" | Aluminum | 0 to 100% | ±2.5% | 2% | 10° to 170° F/-12° to 75° C | ±1.8° F/±1° C | 5° F/2° C | Wall | 1/8" (3) | Yes | 0000000 | 000000 |
| 5" | Brass | 0 to 100% | ±2.5% | 2% | 10° to 170° F/-8° to 75° C | ±1.8° F/±1° C | 5° F/2° C | Wall | 1/8" (3) | Yes | 0000000 | 000000 |
Remote-Reading Humidity and Temperature Meters
Scale
Display
Meters measure indoor relative humidity and indoor and outdoor temperatures. Meter with LCD display also measures outdoor relative humidity.
Relative Humidity | Temperature | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Indoor Range | Outdoor Range | Accuracy | Indoor Range | Outdoor Range | Accuracy | Ht. | Wd. | Dp. | Battery Size (No. Required) | Batteries Included | Each | |
With Dial and Scale Display and Wired Probe | ||||||||||||
| 10 to 80% | __ | ±5% | -45° to 110° F/-45° to 50° C | -45° to 110° F/-45° to 50° C | ±4º F/±2° C | 9 3/4" | 2" | 11/16" | __ | __ | 0000000 | 000000 |
With LCD Display and Wireless Sensor | ||||||||||||
| 20 to 95% | 20 to 95% | ±5% | 32° to 122° F/0° to 50° C | -40° to 140° F/-40° to 60° C | ±2º F/±1° C | 3 3/8" | 5 1/16" | 1 1/2" | AA (2), AAA (2) | No | 00000000 | 00000 |
High-Accuracy Humidity and Temperature
Meters with Calibration Certificate
Determine relative humidity within ±1.5% accuracy and temperature within ±0.8° F accuracy. This meter comes with a calibration certificate traceable to NIST that states it has passed a test for accuracy. It also displays dew point or frost point.
Pocket Humidity and Temperature Meters
Relative Humidity | Temperature | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Range | Accuracy | Range | Accuracy | Display | Digit Ht. | Ht. | Wd. | Dp. | Features | Includes | Batteries Included | Each | |
| 20 to 95% | ±3.5% | 32° to 122° F/0° to 50° C | ±1.8º F/±1° C | LCD | 3/4" | 5 1/8" | 7/8" | 5/8" | Min./Max. Memory | Belt Clip | Yes | 00000000 | 000000 |
Hand-Held Humidity and Temperature Meters
90% Relative
Humidity Meter
100% Relative
Humidity Meter
For comprehensive system checks and quality control, these meters measure a wider relative humidity range than pocket meters and can determine dew point in addition to humidity and temperature.
Relative Humidity | Temperature | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Range | Accuracy | Range | Accuracy | Display | Digit Ht. | Ht. | Wd. | Dp. | Probe Type | Includes | Batteries Included | Each | |
| 10 to 90% | ±3% | -4° to 122° F/-20° to 50° C | ±1.8° F/±1° C | LCD | 3/16", 3/8" | 6 11/16" | 1 7/8" | 1/2" | __ | Pocket Clip | Yes | 0000000 | 0000000 |
| 0 to 100% | ±2% | -4° to 122° F/-20° to 50° C | Not Rated | LCD | 3/4" | 8" | 2 1/2" | 1 3/8" | Built In | __ | Yes | 0000000 | 000000 |
Remote-Reading Hand-Held
Humidity and Temperature Meters
The probe is attached to a 3-ft. cable for checking humidity, temperature, and dew point in hard-to-reach areas.
Relative Humidity | Temperature | Probe | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Range | Accuracy | Range | Accuracy | Dew Point Range | Lg. | Dia. | Connection | Ht. | Wd. | Dp. | Batteries Included | Each | |
| 5 to 95% | ±3% | 32° to 120° F/0° to 50° C | ±1.5° F/±0.8° C | -13° to 120° F/-25° to 48° C | 8" | 5/8" | DIN | 7" | 2 11/16" | 1 3/4" | No | 00000000 | 0000000 |
Pocket Humidity and Temperature
Meters with Calibration Certificate
To ensure reliable readings on the go, this portable meter comes with a calibration certificate traceable to NIST that states it has passed a test for accuracy.
Relative Humidity | Temperature | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Range | Accuracy | Range | Accuracy | Display | Digit Ht. | Ht. | Wd. | Dp. | Features | Includes | Batteries Included | Each | |
| 20 to 95% | ±3.5% | 32° to 122° F/0° to 50° C | ±1.8º F/±1° C | LCD | 3/4" | 5 1/8" | 7/8" | 5/8" | Min./Max. Memory | Belt Clip | Yes | 00000000 | 0000000 |
Psychrometers
Obtain continuous temperature measurements from a wet-bulb and a dry-bulb thermometer to determine relative humidity. This wall-mount psychrometer consists of two mercury-free fluid-filled thermometers, a wick, a glass water bulb, and a relative humidity calculation table.
Portable Psychrometers
Humidity
Accuracy
Also known as sling psychrometers, these calculate relative humidity in the field based on continuous temperature measurements from a wet-bulb and a dry-bulb thermometer. They consist of two mercury-free fluid-filled thermometers, a wick, a glass water bulb, and a handle.
Psychrometer with ±5% relative humidity accuracy has a built-in slide rule for calculating humidity without a calculation table.
Miniature Remote-Reading Panel-Mount Thermometers
Install the small display in tight spaces and crowded instrument panels up to 10 feet from the probe.
Probe | Mtg. Holes | For Panel Cutout | Material | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temperature Range | Resolution | Accuracy | Lg. | Dia. | No. of | Dia. | Fasteners Included | Ht. | Wd. | Ht. | Wd. | Dp. | Housing | Probe | Batteries Included | Each | |
| -40° to 300° F/ -40° to 150° C | 0.1/0.1 | ± 1.8° F | 7/8" | 3/16" | 2 | 5/32" | No | 1 1/2" | 2 3/4" | 1 5/8" | 2 15/16" | 1" | Plastic | Stainless Steel | Yes | 0000000 | 000000 |
High-Accuracy Panel-Mount
Thermometers with Calibration Certificate
Obtain the most accurate readings possible with these thermometers that include a calibration certificate traceable to NIST that states they’ve passed a test to fall within ±0.5° F accuracy. The thermometer probe is connected to a cable, so the display can be mounted away from your system for remote viewing.
Probe | Mtg. Holes | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cable Lg., ft. | Temperature Range, ° F | Resolution | Accuracy | Dial Dia. | Lg. | Dia. | Pipe Size | Thread Type | Gender | Flange OD | Bolt Circle Dia. | No. of | Dia. | Fasteners Included | Probe Material | Batteries Included | Each | |
Back Flange Mount | ||||||||||||||||||
| 5 | -75° to 750° | 0.1 | ± 0.5° F | 4 1/2" | 4" | 1/4" | 1/2 | NPT | Male | 4 1/2" | 5 3/8" | 3 | 1/4" | No | Stainless Steel | Yes | 0000000 | 0000000 |
| 10 | -75° to 750° | 0.1 | ± 0.5° F | 4 1/2" | 4" | 1/4" | 1/2 | NPT | Male | 4 1/2" | 5 3/8" | 3 | 1/4" | No | Stainless Steel | Yes | 0000000 | 000000 |
| 15 | -75° to 750° | 0.1 | ± 0.5° F | 4 1/2" | 4" | 1/4" | 1/2 | NPT | Male | 4 1/2" | 5 3/8" | 3 | 1/4" | No | Stainless Steel | Yes | 0000000 | 000000 |
| 20 | -75° to 750° | 0.1 | ± 0.5° F | 4 1/2" | 4" | 1/4" | 1/2 | NPT | Male | 4 1/2" | 5 3/8" | 3 | 1/4" | No | Stainless Steel | Yes | 0000000 | 000000 |
| 25 | -75° to 750° | 0.1 | ± 0.5° F | 4 1/2" | 4" | 1/4" | 1/2 | NPT | Male | 4 1/2" | 5 3/8" | 3 | 1/4" | No | Stainless Steel | Yes | 0000000 | 000000 |
Easy-Read Outdoor Thermometers
Material | Relative Humidity | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dial Dia. | Housing | Lens | Temp. Range | Graduation Marks | Temp. Accuracy | Range | Graduation Marks | Accuracy | Mounting Location | Each | |
| 12" | Aluminum | Plastic | -60° to 120°F / -50° to 50°C | 2°F/1°C | ±2º F/±1° C | 30 to 90% | 10% | ±10% | Wall | 0000000 | 000000 |
| 12" | Plastic | Plastic | -40° to 120°F / -40° to 50°C | 2°F/1°C | ±5°F/±1.5° C | 0 to 100% | 2% | ±5% | Wall | 0000000 | 00000 |
| 13 1/4" | Plastic | Plastic | -60° to 120°F / -50° to 50°C | 2°F/1°C | ±4º F/±3° C | __ | __ | __ | Wall | 0000000 | 00000 |
| 18" | Aluminum | Plastic | -60° to 130°F / -50° to 50°C | 2°F/2°C | ±2º F/±1° C | __ | __ | __ | Wall | 0000000 | 00000 |
Remote-Reading Outdoor Thermometers
A built-in temperature sensor and a remote-reading probe simultaneously monitor indoor and outdoor temperature.
Temp. Range, °F | Probe | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Digit Ht. | Indoor | Outdoor | Temp. Accuracy | Cable Lg., ft. | Connection | Lg. | Ht. | Wd. | Dp. | Features | Batteries Included | Mounting Hole Dia. (No. of) | Fasteners Included | Each | |
| 1 3/8" | 32° to 122° | -40° to 158° | ±2°F | 10 | Wire Leads | 3/4" | 3 1/4" | 4" | 1/4" | Built-In Stand, Min./Max. Memory | Yes | 1/4" (1) | No | 00000000 | 000000 |
Outdoor Thermometers
| Scale Ht. | Housing Material | Mount Type | Temp. Range | Graduation Marks | Temp. Accuracy | Fluid Color | Fluid Material | Ht. | Wd. | Mounting Hole Dia. (No. of) | Fasteners Included | Each | ||
| A | 8 1/4" | Aluminum | Bracket | -40° to 120° F/-40° to 50° C | 2° F/1° C | ±2° F/±1° C | Red | Diesel Fuel | 8 1/4" | 4 1/4" | 1/4" (2) | Yes | 000000 | 00000 |
| B | 8 1/4" | Aluminum | Fastener Mount | -40° to 120° F/-40° to 50° C | 2° F/1° C | ±2° F/±1° C | Red | Diesel Fuel | 8 1/4" | 2 1/2" | 7/32" (2) | No | 00000000 | 0000 |
| C | 9 7/8" | Plastic | Fastener Mount | -40° to 120° F/-40° to 50° C | 2° F/1° C | ±3° F/±1.5° C | Blue | __ | 9 7/8" | 2 3/8" | 5/16" (2) | No | 0000000 | 00000 |
Desktop Multifunction Barometers
Check temperature, relative humidity, atmospheric pressure, and time with one barometer. The included remote sensor has a 200-ft. wireless transmission range for monitoring outdoor temperature and relative humidity in addition to indoor conditions.
Barometric Pressure | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Display | Max. Transmission Distance, ft. | Features | Ht. | Wd. | Dp. | Battery Size (No. Required) | Batteries Included | Mounting Hole Dia. (No. of) | Fasteners Included | Each | |
| LCD | 200 | 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 |
Barometers
Measure atmospheric pressure changes in both inches of mercury (Hg) and millibars (mbar).
Barometric Pressure | Overall | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Display | Range | Accuracy | Mounting Location | Digit Ht. | Ht. | Wd. | Dp. | Housing Material | Batteries Included | Mounting Hole Dia. (No. of) | Fasteners Included | Each | |
| LCD | 20" to 32 in. of Hg/677 to 1,083 mbar | ±0.045" Hg/±1.5 mbar | Freestanding, Wall | 1 1/2" | 2 7/8" | 9" | 1 1/2" | Aluminum | Yes | 1" (1) | No | 000000 | 0000000 |
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 |
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.
| 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 | Each | |
| 1,000 | Pipe, Wall | Plastic | Plastic | Solar | 100 to 240 | 10 | Two-Prong Plug | Battery Backup | Yes | 0000000 | 0000000 |
Rugged-Service Weather Stations
When long life with little maintenance is critical, rely on the same rugged weather equipment used by the National Weather Service. For a complete weather station, you'll need at least one sensor, a sensor cable, and either the Weather Data Center Display or one of the Real-Time Displays.
All mount on vertical 1" pipe (1 3/8" OD). Mounting hardware is included; pipe is not included. Connect to power using screw terminals.
(A) Temperature/Relative Humidity Sensor—Includes a shield that maintains accurate temperature readings by reducing sensor exposure to solar radiation and precipitation. Operates on 10-28 VDC. Output is 4-20 mA.
(B) Barometric Pressure Sensor—Operates on 7-30 VDC. Output is 4-20 mA. Enclosure (sold separately) is required. Optional wind screen reduces variance in measurements caused by wind gusts.
(C) Wind Speed/Wind Direction Sensor—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).
(D) Rainfall Intensity Sensor—Does not require a power supply. Output is pulse.
Weather Data Center Display (For Sensors A-D)—Presents live readings from up to eight sensors and logs more than two million readings for later upload to your PC using an RS-232 serial communication cable (sold separately). It can also be programmed to activate alarms on up to four readings. Resolution is 0.1° F for temperature, 1% for relative humidity, 0.01" Hg for barometric pressure, 1 mph for wind speed, 1° for wind direction, and 0.01" for rainfall. Display operates on 10-30 VDC or the included 115 VAC adapter with 6-ft. power cord and two-prong plug. Overall size is 5 11/16" Ht. × 7 7/8" Wd. × 2 1/8" Dp.
Real-Time Displays (For Sensors A and C)—Get accurate, real-time data from either the temperature/relative humidity sensor or wind speed/wind direction sensor. Alarms activate when your chosen thresholds are reached. Resolution is 0.1° F for temperature, 1% for relative humidity, 1 mph for wind speed, and 10° for wind direction. Displays can be linked in parallel to feed multiple displays from a single sensor. They operate on 12-30 VDC or the included 110 VAC adapter with 6-ft. power cord and two-prong plug. Overall size is 5 11/16" Ht. × 5 11/16" Wd. × 1 7/16" Dp.
Indoor Temperature | Outdoor Temperature | Indoor Relative Humidity | Outdoor Relative Humidity | Sensor | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Range | Accuracy | Range | Accuracy | Range | Accuracy | Range | Accuracy | Mounting Location | Sensor Housing Material | Sensor Power | Each | |
| -58° to 122° F | ±0.6° F | -58° to 122° F | ±0.6°F | 0 to 100% | ±2% | 0 to 100% | ±2% | Pipe | Plastic | Electrical | 0000000 | 000000000 |
Barometric Pressure | Sensor | |||||
|---|---|---|---|---|---|---|
| Range | Accuracy | Mounting Location | Sensor Housing Material | Sensor Power | Each | |
| 14.8 to 32.5in. of Hg | ±0.01" Hg | Pipe | Plastic | Electrical | 0000000 | 0000000 |
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 |
Electrical Resistance Testers for Static Control
Check that your material and work surfaces won’t discharge static electricity, which can damage sensitive electronics. These testers are designed to take measurements in accordance with ANSI guidelines for electrostatic discharge control. They measure electrical resistance up to 1×1012 ohms—five orders of magnitude greater than our multimeters.
These testers measure resistance between two points on a surface and from the surface to a ground. To avoid a sudden release of static, resistance should be between 1×106 and 1×109 ohms.
Use the small parts probe (sold separately) to measure resistance on small items or in hard-to-access areas. Use the packaging probe (sold separately) to measure resistance of thin packaging and films.
Batteries | ||||||||
|---|---|---|---|---|---|---|---|---|
| Resistance, ohms | Accuracy | Features | Includes | Included | Size | No. Required | Each | |
| 1×103-1×1012 | ±10% | Battery Life Indicator, Data Memory | 1 Alligator Clip, 1 Carrying Case, 1 Ground Plug Adapter, 2 Probe Spacers (10" Lg. and 36" Lg.), 2 Test Leads, 2 Test Probes | Yes | AA | 4 | 000000 | 000000000 |