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pressure transmitter differential pressure hvac air quality bas flow transmitters gauge switches gage switch irrigation building automation systems digital modbus flow transmitter agriculture test equipment room pressure monitor remote monitoring potable water room status monitor iaq indoor air quality building automation bacnet temperature transmitter limit switch pharmaceutical valve indicating temperature weatherproof refrigeration controller water meter carbon dioxide high accuracy cubic meter gallon dry contact air velocity transmitter residential water monitoring water flow magnehelic pulse output low differential pressure water totalizing hvac; test instruments; hvacr; handheld; app flowmeter dust collector intrinsically safe hazardous rated clean room single pressure mechanical room monitoring heat exchangers sensor school nurse offices multi-jet liquid flow liquid flow rates series pft pft paddlewheel insertion level transmitter dwyer submersible pressure transmitters pressure transmitter co2 sensors wastewater energy building balancing plastic water meter lightning protected vav systems submersible level transmitter manometer monitoring on demand ventilation indicating transmitter temperature sensor photohelic air economizers humidity transmitter magnesense filtration systems freeze protection filtration system leak detection pump protection cooling systems cooling system ground water remediation level non-magnetic sensing submersible transmitter modbus庐 communications chiller non-dispersive infrared sensor blowout proof actuators pneumatic double acting spring return blue digits red digits thermostat digital thermostat panel mount digital panel mount digital indicating water explosion-proof differential pressure transmitter air handler duct pressure wireless ndir liquid level wireless differential pressure module dwyer instruments filter monitoring hot water monitoring air handlers flow switch energy meter inline flowmeter variable air volume energy monitoring magnetically driven boiler brass industrial carbon monoxide transmitters differential air velocity indoor environments ndir co2 sensor vivariums cleanroom hvacr hvac&r hot tap hottap process automation magnehelic gauge pharama low pressure high pressure high differential pressure semiconductor building commissioning magnehelic gage cooling temperature control valves schools leed庐 certification room monitoring research lab clean manufacturing areas test instrument critical environment leed balancing testing and balancing temperature switch pumps dental offices pressure monitor demand control ventilation hospital isolation room remote display telescoping vane probe containment chamber measure humidity chiller plant terminal unit duct traverses dwyer vt-300 thermo anemometer measure air velocity replacement vane probe hvac systems hvac testing powder and bulk water sensor pump skid water detector wastewater treatment poultry/hog/greenhouse bubble tight ball valve stainless stell ball valve nitrogen dioxide transmitters gas transmitter garage or loading dock ventilation on off ball valve quarter-turn valve hvac inspections flow switches paddle vt-300 protection against low or no flow control of sequential operation of pumps automatically starts auxiliary pumps and engines controls dampers according to flow measure air temperature measure air volume miniature vane thermo anemometer compressors pumping systems irrigation system pressure industrial process monitoring hydraulic flow sensors vav air flow measurement fume hood exhaust flow verification hvac retrofit air flow measurement vane thermo anemometer manufacturing midstream refinery room comfort monitoring wall mounted humidity sensor wa thermistor rtd rh relative humidity pid loop controllers hvac; test instruments; hvacr; handheld; app; mano hvac; test instruments; hvacr; handheld; app; mano thermowells themowell ss thermowell stainless steel thermowell stainless steel thermowells threaded thermowells industrial thermowell machined thermowell 316ss thermowell 304ss thermowell thermometer thermowell thermocouple thermowell thermometer accessories insertion thermometer chillers detecting low differential pressures differential pressure sensors chemical plant air meter flow control flow indication flow meter water alarm gas meter sump pump water sensor basement water detector basement water sensor gear flowmeter liquid meter sump pump leak dectector meter panel mount flow meter panel mount flowmeter rotameter roto-gear rotogear valve flow meter valve flowmeter valve meter variable area variable area flowmeter variable flow leak sensor leak alarm watchdog detector differential pressure transducers touch screen pump control touch screen room alarm room alarm pump control wmh hot water meter high temperature condenser touch screen freezer monitor touch screen level control we35 3-way three-way ball full port electric touch screen level monitor room display level monitor modulating two-position touch screen freezer monitoring touch screen level monitoring room monitor touch screen freezer control explosion proof level control hydronic pressure switch transmitter air flow monitoring bas air velocity hvac air flow transmitter duct monitoring fan supply measurement hvac air flow digimag duct supply monitoring hvac air velocity transmitter air flow transmitter bas air velocity transmitter hvac air velocity bas air flow transmitter duct flow transmitter exhaust stack flow monitoring bas air flow clean room ventilation air ventilation monitoring duct velocity transmitter wpt lead free digital pressure switch heating gui interface savings air flow hood single-beam dual-wavelength water meters air flow residential measurement portable refrigerant pressure testing hydronic thermocouple wire type j type k fep insulation fiberglass insulation commissioning wet/wet differential pressure transmitter flow elements filters coils npt ball valve measuring software application mobile app duct traverse low cost panel meter freezer control touch screen panel meter freezer monitoring weather proof gas flow presure transmitter instrumentation differtential pressure lighting current transformers process control air volume building thermo-anemometer thermo-hygrometer vane thermo-anemometer module fans handheld wrbt testing; capture hood; air hood removable bottom clean debris air balance boiler monitoring timer boards timer board dust collection springless diaphragm valve springless rdcs dcs series rdcs series dcs pulse diaphragm replacement diaphragm kit pulse valves pulse valve diaphragm valves diaphragm valve rsm series rsm room status electromagnetic transmitter electromagnetic flow transmitter electromagnetic flow meter testing hvac equipment performance nist calibration hvac balancing bacnet communication pencil style transmitter dwyer transmitter pencil style building ducts ief hvac system hvac efficiency heat energy energy measurement energy efficiency building automation system btu measurement btu building duct avlv transmitter avlv air velocity transmitter avlv air velocity measurement air speed air movement air measurement air indicator heat exchanger fire-protection damper ventilation duct fan heater cooling-air circuits air filter filter status series adps/edps series adps/edps differential pressure switch series tsxt relay monitors monitor gas regulator single limit indicating switch electronic pressure controllers pressure controllers pressure controller limit switches series is626 is626 velocity transmitter vav system series avlv low velocity low flow low air velocity transmitter low air velocity hvac balancing instruments critical environment testing building hvac test and balance ultra pure water process water neutralization disinfection deionized water dechlorination compressed air clarification hospitals single beam dual wavelength school iaq particulate matter transmitter office iaq iaq transmitter hospital iaq healthcare facilities educational institutions radonaway radon system radon levels radon indicator radon alarm indicator alarm flow indicator air flow alarm indicator secondary collector secondary baghouse particulate transmitter particulate sensor emission sensor broken bag detector we08 2-way 2-piece pressure manometer instrumentation validation industrial process verification building control remote water monitoring residential water measurement chiller water usage commercial water usage nsf certified residential water metering water usage in manufactured equipment irrigation flow monitoring vertical water meter temperature set point north american housing european housing dip switches communicating cdtc magmeter insertion transmitter insertion magmeter insertion flow transmitter air purifiers positive or negative pressure pharma universal output tamperproof tamper-proof passive temperature office buildings leed certification energy saving digital barometric co2 monitoring co2 measurement carbon dioxide transmitter carbon dioxide monitoring level sensor level switch level float switch float switch vertical level float switch refrigeration systems digester clarifier sludge pit alum tank lime slurry sbltx sblt2 sblt water tank water tanks down hole surface water monitoring environmental remediation ground water monitoring well monitoring measure pressure drop pressure drop hydronic valve balancing vehicle maintenance facilities loading dock ventilation condensation protection switch freeze protection switch low limit temp switch air handling unit temperature switch air handing unit temperature monitoring ahu temperature switch ahu freeze stat temp switch copper temperature switch copper capillary temperature switch automatic temperature switch manual temperature switch low limit temperature switch freezestat freeze stat piezoresistive reservoir sump oil tank chemical storage outside temperature sensor outside air temperature sensor nema 4 temperature sensor nema 4x temperature sens hvac temperature sensor duct temperature sensor duct mount temperature sensor bas temperature sensor water flow measurement water differential pressure transmitters monitoring pressure differential pressures measuring vessels clogging measuring fluid flow low differential pressure measurement industrial processes hydronic systems high static water pressure high static pressure fluid differential pressure transmitters fan coils dp for process vessels leak detector garage ventilation co transmitter co switch co detector co alarm carbon monoxide switch carbon monoxide detector carbon monoxide alarm relative humidity reference pool room humidity monitoring outdoor temperature water temperature sensor wall temperature sensor wall mount temperature sensor thermistor temperature sensor thermistor sensor rtd temperature sensor rtd sensor pipe temperature sensor building pressurization leak detection systems refrigerant recovery refrigeration equipment hvac equipment hvac-r pressure surge resistance configurable temperature transmitter thermocouple transmitter universal input field selectable in head mounting in-head mounting uhh-cbl2 a-709 pt100 connection micro-usb model tbu-00 temperature transmitter model tbu series tbu defrost master slave configuration refrigeration control t-tsxt tst-041 tst-031 tst-021 tst-011 low-temp heating systems ts-probes t-tst capacative touch keys 638r series 638r oem extreme temperatures aggressive fluids paint and agriculture spraying closed loop hydraulics isolated diaphragm packages thermal flow switch thermal dispersion flow switch thermal dispersion series tdfs series tdfs2 tdfs2-1-p-06 tdfs tdfs2 tenant billing meter utilities billing heat metering ultrasonic energy meter thermal energy meter modbus flowmeter energy flowmeter btu meter bacnet flowmeter low temp switch series dfs low temperature switch condensation switch temp transmitter tbu transmitter tbu-00 tbu hockey puck temperature transmitter hockey puck transmitter pulp petrochemical paper oil gas food chemical beverage led status indicators visual indication adjustable set point thermal low pressure drop non-mechanical hood