Extech Catalog PDF

Dew Point/Wet Bulb/PsychrometersRH390RH490RH401RH405HD500PatentedPsychrometer KitsHighAccuracyRH405Value KitUSB port, cable andPC software includedPrecision Hygro-ThermometerPsychrometerHighest 2% RH accuracy withFast 30 second Response Time• Dual backlit display• Simultaneous display of:Humidity/TemperatureHumidity/Dew PointHumidity/Wet Bulb• Fast 30 second response time• Slim design with rubberizedsides for better grip and forone hand operation• Model RH490 measures GrainsPer Pound (grams per kilogram)to 1120GPP (160g/kg)• Complete with carrying caseand 9V batteryPsychrometer+ 8:1 InfraRedThermometerIR for Non-contact Temperaturemeasurements• Triple display with backlighting:- Air temp+RH+surface temp- Dew Point+RH+surface temp- Wet Bulb+RH+surface temp• Calculates T1 - DP (IR SurfaceTemperature) - (Dew Point)differential• Data Hold and Auto power off• Built-in RS-232 interface(optional cable) — capturesreadings to a PC usingWindows ® Hyperterminal• RH401 includes 4 AAA batteriesand carrying case• RH405 kit includes RH401,RH401-CAL calibration bottles,407752 software with cable, andcase (see photo on the right)Psychrometer+ 30:1 InfraRedThermometerCombination Humidity Meter,Type K thermometer, andInfraRed Thermometer• Built-in IR Thermometer fornon-contact surface temperaturemeasurements to 932°F (500°C)with 30:1 distance to target ratio• Type K Thermometer for contacttemperature measurement to2501°F (1372°C)• Highest 2% RH accuracy• Large triple LCD backlit display• USB port includes PC software• Auto power Off• Optional calibration bottleRH300-CAL• Complete with Type K temperatureprobe (-58 to 482°F/-50 to 250°C),Windows ® compatible PC softwareand USB cable, built-in stand,carrying case, and 9V batteryRH305 Kit — includesRH300, temperature probe,33% and 75% calibrationbottles, and caseRH355 Kit — includesRH350, 33% and 75%calibration bottles, PCcable, and caseRH405 Kit — includes RH401with 33% and 75% calibrationbottles, PC cable, and caseRH390 RH490 RH401 RH405 (kit) HD500 ModelCapacitance Capacitance Capacitance Sensor Type-22 to 199°F (-30 to 100°C) -90.4 to 122°F (-68.0 to 49.9°C) -90.4 to 140°F (-68 to 60°C) Dew Point32 to 176°F (0 to 80°C) -6.9 to 122°F (-21.6 to 49.9°C) -6.88 to 140°F (-21.6 to 60°C) Wet Bulb0 to 100%RH (±2%RH) 0 to 100% (±3%RH) 0 to 100% (±2%RH) Humidity (Basic Accuracy)-22 to 199°F (-30 to 100°C) -4 to 122°F (-20 to 50°C) 14 to 140°F (-10 to 60°C) Temperature (internal)±1.8°F/1°C ±1.8°F (±1°C) ±4°F (±2°C) Basic Accuracy— — -148 to 2501°F (-100 to 1372°C) Temperature (external)— — ±3% Basic Accuracy— -40 to 932°F (-40 to 500°C) -58 to 932°F (-50 to 500°C) Temperature (IR)— ±3% ±2% or ±4°F (±2°C) Basic Accuracy— Adjustable 0.3 to 1.0 0.95 fixed Emissivity— 8:1 30:1 Field of View— Optional RS-232 USB PC Interface— — — Memory/DataloggingCE/ 1 year CE/ 1 year CE/ ✓3 years CE/Warranty7.8x1.7x1.3" (200x45x33mm)/7oz (200g) 10x2.9x2" (255x75x50mm)/12.2oz (350g) 10x2.9x2" (255x75x50mm)/12.2oz (350g) Dimensions/Weight…trusted by the professionals. 83