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Records data on an SD card in Excel® format
Features:

Dual LCD simultaneously displays Relative Humidity and Temperature readings
Datalogger stores readings on an SD card in Excel® format for easy transfer to a PC
Selectable data sampling rate: 5, 10, 30, 60, 120, 300, 600 seconds or Auto
Complete with six AAA batteries, 2G SD card, universal AC Adaptor, and mounting bracket

For complete specs please download the product datasheet (not available for some accessories)

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Best Value Paperless Chart Recorder In the Market That's Easy to Set-Up and Operate

Simultaneous numerical and graphical display of Humidity and Temperature readings with Time and Date
Calculates Dew Point
Large dual graphical LCD displays with adjustable vertical and horizontal TAC resolution
Internal memory records up to 49,000 data points and can be transferred to a PC via RS-232 serial port for further data analysis - cable and software included
LCD indicates percentage of memory remaining

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Features:

Rugged 5-in-1 environmental meter with tripod mount and RS-232 PC interface
Large dual LCD simultaneous display of Temperature and Air Velocity or Relative Humidity
Characters on display reverse direction depending on Hygro-Thermo-Anemometer or Light-Sound Mode
Data Hold, Min/Max, Auto power off, Low Battery/Overrange indication
Built-in low friction vane wheel improves accuracy of air velocity in ft/min, MPH, m/s, km/h, and Knots
Built-in precision thin-film capacitance humidity sensor for fast response
Built in thermistor for ambient temperature measurements
Type K input measures temperature to 2372° (1300°C)

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Compact, Digital Hygro-Thermometer, Ideal for Field Use

Simultaneous display of Temperature (°C/°F) and Relative Humidity
Max/Min and Data Hold
Built-in self calibration utility allows for field calibrations using optional Relative Humidity calibration bottles
Includes 33% and 75% RH calibration standards

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Records data on an SD card in Excel® format
Features:

Relative Humidity, Temperature, Dew Point, and Wet Bulb measurement
Adjustable data sampling rate
Stores 99 readings manually and 20M readings via 2G SD card
Type K/J Thermocouple input for high temperature measurements
Large back-lit dual LCD display
Complete with 6 x AA batteries, SD card, carrying case and Humidity/Temperature probe

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TPI Model 1010 Indoor Air Quality Meter

Calculate percent outside air to maintain acceptable CO2 levels in buildings and work spaces.
Measure and display Carbon Dioxide (CO2) and Carbon Monoxide
Measure ambient air temperature
Measure relative humidity, dew point and wet bulb
Log up to 10,000 readings in 1 second to 1 hour intervals
Download to a computer using the A368 USB cable

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MultiMeter/Datalogger (up to 9,999 readings) with Wireless PC interface (433MHz)

Features:
True RMS measurements for accurate AC Voltage and Current measurements
AC/DC Voltage & Current, Resistance, Capacitance, Frequency (electrical/electronic), Temperature, Duty Cycle, Diode/Continuity
Double molded for waterproof (IP67) protection, CAT IV-600V safety rating for industrial applications
Data Acquisition Mode for real time data transmission directly to your PC
1000V input protection on all functions
Dual sensitivity frequency functions
Large triple LCD display
Complete with double molded test leads, magnetic hanging strap, Type K probe, remote receiver with USB cable, PC software, carrying case, and 9V battery

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Features:

Built-in non-contact IR thermometer with laser
8:1 distance to target ratio
0.95 fixed emissivity
True RMS AC measurements
Relative function
Type K thermometer, Capacitance, Frequency, and Duty Cycle
Low current capability - measure down to 0.1uA
Audible and visual input alerts
Easy to read 1 inch digits on backlit display
Max Hold for AC/DC Voltage and Current measurements and Relative function for establishing a base line for reference
Complete with CAT III test leads, multi-position tilt stand and velcro strip for hanging, protective holster with test lead holder, bead wire temperature probe (-58 to 482 Deg. F/-50 to 250 Deg. C) and 9V battery

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Features:

Built-in non-contact IR thermometer with laser
8:1 distance to target ratio
0.95 fixed emissivity
Low current capability - measure down to 0.1uA
Audible and visual input alerts
Easy to read 1 inch digits on backlit display
Max Hold for AC/DC Voltage and Current measurements and Relative function for establishing a base line for reference
Complete with CAT III test leads, multi-position tilt stand and velcro strip for hanging, protective holster with test lead holder, bead wire temperature probe (-58 to 482 Deg. F/-50 to 250 Deg. C) and 9V battery

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Economical True RMS Multimeter With 11 Functions

True RMS AC measurements
Relative function
Type K thermometer, Capacitance, Frequency, and Duty Cycle
Low current capability - measure down to 0.1uA
Audible and visual input alerts
Easy to read 1 inch digits on backlit display
Max Hold for AC/DC Voltage and Current measurements and Relative function for establishing a base line for reference
Complete with CAT III test leads, multi-position tilt stand and velcro strip for hanging, protective holster with test lead holder, bead wire temperature probe (-58 to 482 Deg. F/-50 to 250 Deg. C) and 9V battery

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MultiMeter/Datalogger (up to 9,999 readings) with Wireless PC interface (915MHz)

Features:
True RMS measurements for accurate AC Voltage and Current measurements
AC/DC Voltage & Current, Resistance, Capacitance, Frequency (electrical/electronic), Temperature, Duty Cycle, Diode/Continuity
Double molded for waterproof (IP67) protection, CAT IV-600V safety rating for industrial applications
Data Acquisition Mode for real time data transmission directly to your PC
1000V input protection on all functions
Dual sensitivity frequency functions
Large triple LCD display
Complete with double molded test leads, magnetic hanging strap, Type K probe, remote receiver with USB cable, PC software, carrying case, and 9V battery

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From filter testing to IAQ monitoring the 1020 single channel particle counter is used to determine airborne particle concentrations.
Small Size. Big Performance. The handheld TPI 1020 is a portable particle counter that counts particles down to 0.3 microns-giving you portability and reliability at the lowest price in the industry.
Completely Self-Contained-Selectable Particle Sizes.
Fast Sampling. Unlike other counters that can take up to a minute to deliver results, the TPI 1020 starts delivering volumetric concentration results in about 3 seconds!
Simple Operation. Only two front-panel buttons control the size channels and sample cycle. Power is controlled by the Start / Stop button.
Battery or AC Powered.

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Indoor Air Quality Meter/Datalogger

Measures CO2 , Temperature, Humidity, Dew Point, and Wet Bulb
Checks for Carbon Dioxide (CO2) concentrations
Maintenance free dual wavelength NDIR (non-dispersive infrared) CO2 sensor
Measurement range: CO2: 0 to 6,000ppm Temperature: -4 to 140°F (-20 to 60°C)
Humidity: 10 to 95%RH
Continuous (20,000 sets) or Manual (99 sets) datalogging
Complete with (6) AAA batteries, RS-232 cable, and Windows? 95/98/NT/2000/ME/XP compatible software

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Superior Quality, High Sensitivity and Low Price
GAS-Mate uses leading-edge technology to detect hydrocarbons and other gases with twice the sensitivity of competing models. Perfect for checking leaks in residential and commercial combustion appliances, such as natural gas- or propane-fired heating systems, or gas pipelines.

Features:

Propane, butane, cyclopentane, ethane, ethanol, isobutane, and ammonia.
Adjustable sensitivity helps pinpoint leaks fast.
Variable audio alarm and flashing LED indicate leak strength.

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Faster response measurements to 1000ppm
Easy to read 1999 count backlit displays CO levels from 0 to 1000ppm
1ppm resolution with ±5% or ±10ppm basic accuracy (whichever is greater)
Utilizes a stabilized electrochemical gas specific (CO) fast response sensor
Audible alarm starts at 35ppm
Backlight for low light conditions

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Quickly Identifies and Pinpoints gas leaks

16" (406mm) gooseneck for easy access into hard to reach locations
Visible and audible alarm at 10%
Locate the smallest leaks

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with Digital Clamp
IR Printer
Digital Manometer
Two 1/4" Brass T Fitting
Two static tips
6' Pressure Tubing

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Calculates CO2 and gross or net efficiency
Works on High Efficiency furnace
Select between 4 fuels (Natural Gas, LPG, Light Oil, Heavy Oil)
Pump driven for fast response
Dual input differential manometer with 3 selectable units of measure: kPa, mBar, inH2O
Flue probe with built-in thermocouple
IR printer port - use optional A740 Infrared Printer
Soft carrying case
Protective rubber boot