Extech 42280 Temperature and Humidity Datalogger

• Utilizes Hall effect sensor with ATC (Automatic Temperature Compensation)
• Adjustable data sampling rate: 1 to 3600 seconds
• Memory stores 99 readings manually
• Datalogging feature records readings with date and time stamp on an SD card (included) in Excel® format
• N pole/S pole indicator

 

• Portable tester for measuring of both Free and Total Chlorine up to 3.50ppm
• 
• The CL500 is a free and total Chlorine meter. This chlorine tester measures up to 3.50ppm with 0.01ppm resolution on its large LCD screen. Complete with Free, Total and Zero Chlorine standard solutions, test bottles with covers, Free and Total Chlorine DPD powder (10pcs), cleaning cloth, 6 AAA batteries, and hard carrying case.

 

• Checks for Carbon Dioxide (CO2) concentrations
• Calculates statistical weighted averages of TWA (8 hour time weighted average) and STEL (15 minute short term exposure limit)
• Maintenance free NDIR (non-dispersive infrared) CO2 sensor

 

• Triple LCD displays Humidity, Temperature, and date (Year, Month, and Day)
• Programmable from keypad or PC
• Selectable data sampling rate
• User programmable audible and visual alarms
• Wall, desktop, or tripod mount
• Calibration via optional salt bottles
• Complete with Windows® compatible software, USB cable, universal AC adaptor, and four AA batteries

 

• Datalogs up to 10,000 readings with a user programmable sample rate
• USB interface for easy set-up and data download
• Selectable Atmospheric Pressure Units: psi, hPa, kPa, and bar
• Selectable data sampling rate from 1 minute to 18 hours

 

• Compact Conductivity/TDS Meter Features
• Simultaneous display of Conductivity or TDS with Temperature
• Three ranges for Conductivity and TDS plus adjustable Temperature compensation factor to maintain accuracy
• Automatic Temperature Compensation
• Temperature compensation factor adjustable between 0 to 5.0% per °C
• Min/Max and Data Hold functions
• Auto Power Off with disable feature
• Use optional 1413?S Conductivity Standard (EC-1413-P) for calibration
• Complete with Conductivity cell and 39" (1m) cable, 9V battery, and soft case

 

• Sensor wavelength range 320 to 390nm
• UV sensor with cosine correction measures irradiance from UVA light sources up to 20.00mW/cm²
• Backlit LCD to view in dimly lit areas
• Zero function
• Data Hold and Min/Max functions

 

• Quickly indicates the moisture content of materials with Pinless technology without damaging the surface
• Remote Pin-type probe (MO290-P included) allows for contact moisture readings (3ft/0.9m cable length)
• Manually store/recall up to 20 labeled readings
• Works on multiple wood types and other building materials
• Easy to read, large dual display with automatic backlight feature

 

• True RMS DMM with 11 functions and 0.06% basic accuracy
• AC/DC Voltage & Current, Resistance, Capacitance, Frequency, Temperature, Duty Cycle, Diode/Continuity
• Dual sensitivity frequency functions (electrical/electronic)
• 1000V input protection on all functions
• 20A max Current

 

• Use on wall board, sheet rock, cardboard, plaster, concrete, and mortar
• Replaceable threaded measurement electrode pins
• Self-contained, pocket sized meter with belt clip