WIXLIB

Comparison between Retrotec and Minneapolis GaugesDG-700 GaugeDM32 GaugeA pouch-style case that protects the DG700.Padded ‘lunch box’ style case for carrying the gauge and all theaccessories also acts as a gauge stand.To start the test, press ON, then 10 clicks on 5 keys. Deviceand Range are shown as character codes. Settings are notsaved.To start the test, tap the Power Button. Device and Rangeare shown as color image. Settings are saved.Page 1 of 8M:\PDF\Source\Spec-Comparison MN DG-700 to DM32\Spec-Comparison MN DG & Rt DM Gauges.docx2016-03-14

DM-2, DG700, DM32 and DG1000. The firmware willmake slight differences but essentially the accuracy is /- 15 of reading which is extremely good when it isconsidered that gauge accuracy is usually quoted as a %of full scale. All 4 of these gauges are incredibly accurateso that at this stage in test fan evolution the test fanaccuracy still struggles to achieve a consistent 5%accuracy under lab conditions and often only 10% underfield conditions where wind will affect not only thebuilding pressure but also the ability of the test fan toready accurately. To this end, the Retrotec Models 300,5000 and 6000 have guide fins around the pressurepickups that cut the effect of the wind in half and sinceevery part is injection molded (an industry first) theyhave much more accuracy potential built into thedesign.The Energy Conservatory (TEC) DG700 was released in2003, while the Retrotec DM32 gauge was released 10years later in 2013. While the DG700 was advanced forits day, the Retrotec DM-2 which was released in 2006had many advanced features such as menu drivendefaults but was hampered by having many similarfeatures to the DG700. The DM32 was launched in2013 with the intention of being the world class gaugethat would communicate with computers over WiFi,CAT5 or USB. The touchscreen was incorporated toeliminate training time and errors caused by failing toremember gauge codes. The DM32 quickly became themarket leader forcing TEC to design a new gauge fromscratch to compete which is the DG1000 which will bereleased half way through 2016 if all goes to plan.The Retrotec DM-2 is slightly more advanced and hasmany more features than the DG700 but the two gaugescould be considered to be equivalent and currently sellfor the same price. The DM32 and DG1000 are alsosomewhat similar and with WiFi sell for the same pricebut Retrotec gives the option of buying the non WiFiversion which can be updated at any time in future.Retrotec’s DM32 is more like an iPhone whereas theDM1000 if more like a small tablet.The following tables will give the user a sense ofdifferences between the DG700 and the DM32. This isnot really a fair comparison since clearly the DM32 is afar more evolved gauge but when the DG1000 isreleased, they will be on an equal footing with somepluses and minuses on both sides. Right now, it’s anunfair competition. Both the DM-2 and DG700 will besold at substantial discounts over the next few years tomove out existing inventory in a market that clearlyprefers the new smart phone style of device.Both manufacturers use sensors from the samemanufacturer so the specs are nearly identical for thePage 2 of 8M:\PDF\Source\Spec-Comparison MN DG-700 to DM32\Spec-Comparison MN DG & Rt DM Gauges.docx2016-03-14

DG-700 GaugeDM32 GaugeA pouch-style case that protects the DG700.Padded ‘lunch box’ style case for carrying the gauge and all theaccessories also acts as a gauge stand.To start the test, press ON, then 10 clicks on 5 keys. Deviceand Range are shown as character codes. Settings are notsaved.To start the test, tap the Power Button. Device and Rangeare shown as color image. Settings are saved.Page 3 of 8M:\PDF\Source\Spec-Comparison MN DG-700 to DM32\Spec-Comparison MN DG & Rt DM Gauges.docx2016-03-14

Velcro loops mount to a speed control plate that will clamp to adoor.Rubber non-skid pads, a belt clip and super magnets are theattachment options.Uses six AA batteries.Built-in Lithium-ion battery recharged from a USB charger inthe office or vehicle.Page 4 of 8M:\PDF\Source\Spec-Comparison MN DG-700 to DM32\Spec-Comparison MN DG & Rt DM Gauges.docx2016-03-14

Gauge specsAccuracy: 1% of reading, or 0.15 PaCruise Control: 0, 25, 50 and 75 Pa unless WiFi Link used.Duct testing results: Flow in CFM. Other units available byconnecting to WiFi add-on.Accuracy: 1% of reading, or 0.25 Pa.Cruise Control: any pressure.Duct testing results: Flow in CFM, CFM/sq ft, CFM/100 sq ft &CFM/1000 sq ftCompatible duct testing Devices:Compatible duct testing Devices:TEC Duct Blaster or Tru-Flow GridRetrotec Model 240, 340, 350 DucTestersTEC Duct Blaster or Tru-Flow GridHardwareWeightSizeErgonomicsTube connectionsScreenBattery lifeCalibrationCalibration intervalNetworkingRecharge while on WiFiOption WiFi range withouta routerDG-700 gauge17 Oz7.5 x 4 x 1.5 inchesDM32 gauge12 Oz/340g5.70 x 3.73 x 1.4 in14.5 9.5 3.5 cmSmart phone style for one hand operationColor coded custom medical style fittingsColor touch screen8 hours on WiFi. Smart phone style rechargeablebatteries from car, computer or wall charger.ISO 17025 accredited laboratory5 yearsRectangular; for two hand operationNo color coding, barbed Brass fittingsMonochrome, mechanical depress buttons20 to 30 hours claimed. Retrotec test got 8 to 9 hourson 6 new Alkaline batteries.Non accredited laboratory, except from Germany2 yearsThree pieces of adapter & cables needed;Serial cable to serial-CAT5 adapter to CAT5 cable tonetworkNoYes2 or 3 floors in a house depending on interference and obstructions.Page 5 of 8M:\PDF\Source\Spec-Comparison MN DG-700 to DM32\Spec-Comparison MN DG & Rt DM Gauges.docx2016-03-14

User InterfaceOverall user experienceand trainingSmart featuresDevice/ Range/SettingselectionMemory saves settingsUniversalityDG-700 gaugeCryptic operation requires trainingDM32 gaugeIntuitive operation requires no trainingNo quick guide for gauge, 37 Page ManualNo;Unintentional errors more likelyKeypad sequences;Memorization required.No;All previously used settings erased.No; includes TEC devices4 Page Quick Guide and ManualYes;Unintentional errors less likelyVisual icons;No memorization required.Yes;Returns to previous used settings.Yes;Includes devices of all blower door equipment manufacturersSoftwareFirmware updates,over the internetPC Testing softwareSimulation PC software;Full remote operation,presentation display, etc.WiFiDG-700 gaugeNoTECTITE;Requires secondary TEC Log software to performmultiple fan tests;Requires TEC Log data export back to TECTITE togenerate report;Gauge serial number requires manual entryYes;Need to purchase WiFi optionAdded box that fits on top of gaugePage 6 of 8M:\PDF\Source\Spec-Comparison MN DG-700 to DM32\Spec-Comparison MN DG & Rt DM Gauges.docxDM32 gaugeYes; New features continuously added;Free updates foreverFanTestic;Fully automated standalone software with live realtime results and report generation;For up to 50 multiple fan tests;Gauge serial number recorded automaticallyYes;“Virtual Gauge” PC software included, can operate viaEthernet, USBCan be added internally over the Internet2016-03-14

Test functionsSet to any pressureJog pressure targetCapture baselineVisual confirmation ofdevice/range settingGet results from all makesof DevicesHOLD resultsChange n value for holes,ducts or housesAll @ pressuresWindows (“Virtual Gauge”softwareEthernet connectivityNoNoYesNoTECDG700 withWiFi Link 11050-100 PaNoYesNoNoNoNoNoNoNoNoYesunknownYes, except 300,4000, 5000 & 6000YesYes25, 50 & 75No25, 50 & 75NounknownNoYesNoYesYes with cableNoyesNoTime Average, seconds1, 5, 10, 30,long term2 gauges onone cable1, 5, 10, 30,long termunknown1, 5, 10, 30, longtermAt least 24 gauges on one 330 footcable1, 5, 10, 30, long 1, 5, 10, 30,termlong termDG700 845Feature of FeatureDG1000 1450available soonYesunknownYesYesDM-2 500RetrotecDM32 1050DM32 WFI sYesYesYesYesDG700 gauge with WiFiCreate WiFi hotspotJoin WiFi networkAndroid appiOS (Apple) appWindows Phone appWindowsConfigure WiFisettings from gaugeLink & iTEC-700softwareYesYesNoYes (“iTEC-700” software)NoNoNoDG1000available soonDM32 WiFi gaugeYes (built-in)Yes (built-in)Available soonAvailable soonAvailable soonAvailable soonAvailable soonYes (built-in)Yes (built-in)YesYesYesYesYesPage 7 of 8M:\PDF\Source\Spec-Comparison MN DG-700 to DM32\Spec-Comparison MN DG & Rt DM Gauges.docx2016-03-14

Results/Units availableResultPressureFlowFlow/AreaAir ChangesEqLAEfLAEqLA/AreaEfLA/AreaUnitsPapsfin /m2(l/s)/m2/hft2 in2 cm2ft2 in2 NoNoNoNoNoNoT ECDG700 withWiFi LinkYesNoNoYesYesYesNoYesYesNoNoNoYes (@ 50 Pa only)NoNoNoNoNoNoNoNoNoDG1000available soonYesNoYesYesYesYesYesYesYesYes (@ 50 Pa nownunknownunknownPage 8 of 8M:\PDF\Source\Spec-Comparison MN DG-700 to DM32\Spec-Comparison MN DG & Rt DM Gauges.docxDM-2RetrotecDM32DM32 s2016-03-14

Comparison between Retrotec and Minneapolis Gauges DG-700 Gauge DM32 Gauge A pouch-style case that protects the DG700. Padded ‘lunch box’ style case for carrying the gauge and all the accessories also acts as a gauge stand. To start the test, press ON, then 10 clicks on 5 keys. Device and