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testo 445

testo 445, VAC measuring instrument, incl. TopSafe, battery and calibration protocol

The testo 445 VAC instrument measures temperature, relative humidity, dew point, absolute humidity, degree of humidity, enthalpy, all types of air velocity (in ducts, duct openings or extractors), volume flow, pressure and indoor air quality.

  • Automatic mean calculation and volume flow measurement
  • Automatic allocation of duct cross-section to location (max. 99 locations)
  • Internal data logger (3,000 readings)
  • Simultaneous measurement of up to 6 parameters
 
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Ordernumber 0563 4450
Probes Accessories Certificates Technical Data Brochures  
Description Picture Part no. Price  
Globe thermometer to measure radiant heat
Meas. range 0 to +120 °C
  		0554 0670  
Pipe wrap probe for pipes up to 2" in diameter
Meas. Range -60 to +130 °C
  		0600 4593  
Spare meas. head for pipe wrap probe, TC Type K
Meas. Range -60 to +130 °C
  		0602 0092  
Quick-action surface probe with sprung thermocouple strip, measuring range short-term to +500°C
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. Range -200 to +300 °C
  		0604 0194  
Super quick-action immersion/penetration probe for measurements in liquids
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. Range -200 to +600 °C
  		0604 0493  
Super quick-action immersion/penetration probe for measurements in gases and liquids with a low-mass tip
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. Range -200 to +600 °C
  		0604 9794  
Vane probe, Ø 16 mm, with telescopic handle, Tmax +60°C
Meas. Range +0.6 to +40 m/s
  		0628 0005  
Comfort level probe for measuring degree of turbulence, with telescopic handle and stand. Fulfills EN 13779 requirements
Meas. range 0 to +50 °C
Meas. Range 0 to +5 m/s
  		0628 0009  
CO2 probe measures indoor air quality and monitors the workplace. With plug-in head, connection cable 0430 0143 or 0430 0145 required
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. Range 0 ... +1 Vol. % CO2 0 ... +10000 ppm CO2   		0632 1240  
Quick-action hot wire probe, Ø 10 mm, with telescopic handle, for measurements in the lower velocity range with direction recognition
Meas. range -20 to +70 °C
Meas. Range 0 to +20 m/s
  		0635 1041  
Robust hot bulb probe, Ø 3 mm, with handle and telescopic handle for measurements in the lower velocity range
Meas. range -20 to +70 °C
Meas. Range 0 to +10 m/s
  		0635 1049  
3-function probe for simultaneous measurement of temperature, humidity and velocity. With plug-in head, 0430 0143 connection cable required
Meas. range -20 to +70 °C
Meas. Range 0 to +100 %RH
Meas. Range 0 to +10 m/s
  		0635 1540  
Affordable, robust hot bulb probe, Ø 3 mm, for measurements in the lower velocity range, with handle
Meas. range -20 to +70 °C
Meas. Range 0 to +10 m/s
  		0635 1549  
Pitot tube, 500 mm long, stainless steel, for measuring flow velocity
(Longer versions on request)
  		0635 2045  
Pitot tube, 350 mm long, stainless steel, for measuring flow velocity
(in combination with pressure probes)
  		0635 2145  
Pitot tube, 300 mm long, stainless steel, for measuring flow velocity
(Longer versions on request)
  		0635 2245  
Pitot tube, 1000 mm long, stainless steel, for measuring flow velocity
(Longer versions on request)
  		0635 2345  
High temperature vane probe, Ø 25 mm, with handle for continuous measurements up to +350°C
Meas. Range -40 to +350 °C
Meas. Range +0.6 to +20 m/s
  		0635 6045  
Bendable vane probe (can be bent by 90°), Ø 100 mm, attachable to handle 0430 3545 or telescopic handle 0430 0941, for measurements on ventilation outlets
Meas. Range +0.2 to +15 m/s
  		0635 9340  
Bendable vane probe (can be bent by 90°), Ø 60 mm, attachable to handle 0430 3545 or telescopic handle 0430 0941, for meas. on ventilation outlets
Meas. Range +0.25 to +20 m/s
  		0635 9440  
Vane probe, Ø 12 mm, can be attached to handle 0430 3545 or telescopic handle 0430 0941
Meas. Range +0.6 to +20 m/s
  		0635 9443  
Vane probe, Ø 60 mm, with telescopic handle, for integrating velocity measurement
Meas. Range +0.25 to +20 m/s
  		0635 9449  
Vane/temperature probe, Ø 16 mm, attachable to 0430 3545 handle or 0430 0941 telescopic handle
Meas. Range -30 to +140 °C
Meas. Range +0.4 to +60 m/s
  		0635 9540  
Vane/temperature probe, Ø 25 mm, can be attached to 0430 3545 handle or 0430 0941 telescopic handle
Meas. Range -30 to +140 °C
Meas. Range +0.4 to +40 m/s
  		0635 9640  
Precision pressure probe, 100 Pa, measures differential pressure and velocities (in combination with Pitot tube)
Meas. Range 0 to +100 Pa
  		0638 1345  
Pressure probe, 10 hPa, measures differential pressure and velocities (in combination with Pitot tube)
Meas. Range 0 to +10 hPa
  		0638 1445  
Pressure probe, 100 hPa, measures differential pressure and velocities (in combination with Pitot tube)
Meas. Range 0 to +100 hPa
  		0638 1545  
Pressure probe, 2000 hPa, measures absolute pressure
Meas. Range 0 to +2000 hPa
  		0638 1645  
Humidity probes
Thin humidity probe incl. 4 attachable protection caps for ambient air measurements, measurements in exhaust air ducts and equilibrium moisture measurements
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. range -20 to +70 °C
Meas. Range 0 to +100 %RH
  		0636 2130  
Duct humidity/temperature probe, can be connected to telescopic handle 0430 9715
Meas. range -20 to +70 °C
Meas. Range 0 to +100 %RH
  		0636 9715  
Standard ambient air probe up to +70°C
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. range -20 to +70 °C
Meas. Range 0 to +100 %RH
  		0636 9740  
Highly accurate reference humidity/temp. probe
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. range -20 to +70 °C
Meas. Range 0 to +100 %RH
  		0636 9741  
Humidity/temperature probe
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. range -20 to +70 °C
Meas. Range 0... +100 %RH
  		0636 9742  
Vane
Vane probe, Ø 16 mm, for stationary assembly, 3 m cable (PVC)
Meas. Range +0.4 to +60 m/s
  		0628 0036  
High temperature vane probe, Ø 25 mm, with handle for continuous measurements up to +350°C
Meas. Range -40 to +350 °C
Meas. Range +0.6 to +20 m/s
  		0635 6045  
Bendable vane probe (can be bent by 90°), Ø 100 mm, attachable to handle 0430 3545 or telescopic handle 0430 0941, for measurements on ventilation outlets
Meas. Range +0.2 to +15 m/s
  		0635 9340  
Bendable vane probe (can be bent by 90°), Ø 60 mm, attachable to handle 0430 3545 or telescopic handle 0430 0941, for meas. on ventilation outlets
Meas. Range +0.25 to +20 m/s
  		0635 9440  
Vane probe, Ø 12 mm, can be attached to handle 0430 3545 or telescopic handle 0430 0941
Meas. Range +0.6 to +20 m/s
  		0635 9443  
Vane/temperature probe, Ø 16 mm, attachable to 0430 3545 handle or 0430 0941 telescopic handle
Meas. Range -30 to +140 °C
Meas. Range +0.4 to +60 m/s
  		0635 9540  
Vane/temperature probe, Ø 25 mm, can be attached to 0430 3545 handle or 0430 0941 telescopic handle
Meas. Range -30 to +140 °C
Meas. Range +0.4 to +40 m/s
  		0635 9640  
NTC
Globe thermometer to measure radiant heat
Meas. range 0 to +120 °C
  		0554 0670  
Highly accurate air probe for air and gas temperature measurements with bare, mechanically protected sensor
Meas. range -40 to +130 °C
  		0610 9714  
Process humidity
Robust high temperature/humidity probe up to +180°C
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. range -20 to +180 °C
Meas. Range 0 to +100 %RH
  		0628 0021  
Flexible humidity probe (does not retain shape) for measurements in inaccessible places
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. range -20 to +180 °C
Meas. Range 0 to +100 %RH
  		0628 0022  
High humidity level probe w/ heated sensor element, no humidity on sensor
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. range -20 to +85 °C
Meas. Range 0 to +100 %RH
  		0636 2142  
Standard pressure dew point probe for measurements in compressed air systems
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. Range 0 to +100 %RH
  		0636 9840  
Precision pressure dew point probe for measurements in compressed air systems incl. cert. with test point -40°C tpd
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. Range 0 to +100 %RH
  		0636 9841  
Type K (NiCr-Ni)
Robust surface probe with sprung thermocouple strip for high temperature range up to +700°C
Meas. Range -200 to +700 °C
  		0600 0394  
Miniature surface probe for measurements on electronic components, small motors...
Meas. Range -200 to +400 °C
  		0600 1494  
Robust immersion/penetration probe made of V4A stainless steel, waterproof and oven-proof, e.g. for the food sector
Meas. Range -200 to +400 °C
  		0600 2593  
Pipe wrap probe for pipes up to 2" in diameter
Meas. Range -60 to +130 °C
  		0600 4593  
Magnetic probe, adhesive power approx. 20 N, with magnets, for measurements on metal surfaces
Meas. Range -50 to +170 °C
  		0600 4793  
Magnetic probe, adhesive power approx. 10 N, with magnets, for higher temperatures, measures on metal surfaces
Meas. Range -50 to +400 °C
  		0600 4893  
Roller surface probe for measurements on rollers and rotating drums, max. circumferential velocity 18 to 400m/min
Meas. Range -50 to +240 °C
  		0600 5093  
Plug-in measuring tip, 750mm long, flexible, for high temperatures, outer casing: stainless steel 1.4541
(Please order handle with Part no. 0600 5593)
Meas. Range -200 to +900 °C
  		0600 5393  
Plug-in measuring tip, 1200 mm long, flexible, for high temperatures, outer casing: stainless steel 1.4541
(Please order handle with Part no. 0600 5593)
Meas. Range -200 to +900 °C
  		0600 5493  
Plug-in measuring tip, 550mm long, flexible, for high temperatures, outer casing: Inconel 2.4816
(Please order handle with Part no. 0600 5593)
Meas. Range -200 to +1100 °C
  		0600 5793  
Plug-in measuring tip, 1030mm long, flexible, for high temperatures, outer casing: Inconel 2.4816
(Please order handle with Part no. 0600 5593)
Meas. Range -200 to +1100 °C
  		0600 5893  
Smelting probe for measurements in non-ferrous melting baths, with exchangeable measuring tip
(Measurement tip lifetime: up to 500 measurements in aluminium smelter)
Meas. Range -200 to +1250 °C
  		0600 5993  
Spare meas. head for pipe wrap probe, TC Type K
Meas. Range -60 to +130 °C
  		0602 0092  
Quick-action surface probe with sprung thermocouple strip, measuring range short-term to +500°C
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. Range -200 to +300 °C
  		0604 0194  
Fast response immersion/penetration probe
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. Range -200 to +400 °C
  		0604 0293  
Super quick-action immersion/penetration probe for measurements in liquids
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. Range -200 to +600 °C
  		0604 0493  
Super quick-action immersion/penetration probe for high temperatures
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. Range -200 to +1100 °C
  		0604 0593  
Super quick-action surface probe, probe tip at 90° angle, with sprung thermocouple strip
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. Range -200 to +300 °C
  		0604 0994  
Super quick-action immersion/penetration probe for measurements in gases and liquids with a low-mass tip
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. Range -200 to +600 °C
  		0604 9794  
Robust surface probe, at 90° angle, suitable for inaccessible places
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. Range -200 to +600 °C
  		0604 9893  
Robust surface probe
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. Range -200 to +600 °C
  		0604 9993  
Quick-action surface probe with sprung thermocouple strip, measuring range short-term to +500°C
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. Range -200 to +300 °C
  		0614 0194  
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Meas. Range -200 to +400 °C
  		0614 0293  
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Meas. Range -200 to +600 °C
  		0614 0493  
Quick-action immersion/penetration probe for high temperatures
Meas. Range -200 to +1100 °C
  		0614 0593  
Fast action immersion/penetration probe for measurements in gases and liquids with thin tip
Meas. Range -200 to +600 °C
  		0614 9794  
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Meas. Range -200 to +600 °C
  		0614 9893  
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Meas. Range -200 to +600 °C
  		0614 9993  
Thermocouple, made of fibre-glass insulated thermal pipes, pack of 5
(Insulation: twin conductor, flat, oval, opposed and covered with fibre-glass, both conductors are wrapped together with fibre-glass and soaked with lacquer, please order adapter 0600 1693)
Meas. Range -200 to +400 °C
  		0644 1109  
Adhesive thermocouple, pack of 2, carrier material: aluminium foil
(Is fixed at the measuring point using conventional adhesives or silicone heat paste 0554 0004)
Meas. Range -200 to +200 °C
  		0644 1607  
More probes
Flexible humidity probe with mini module for meas. e.g. on material testing rigs, module cable length 1500mm, probe tip 50x19x7mm
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. range -20 to +125 °C
Meas. Range 0 to +100 %RH
  		0628 0013  
Flexible humidity probe (retains shape) for measurements at inaccessible points
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. range -20 to +125 °C
Meas. Range 0 to +100 %RH
  		0628 0014  
Robust high temperature/humidity probe up to +180°C
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. range -20 to +180 °C
Meas. Range 0 to +100 %RH
  		0628 0021  
Flexible humidity probe (does not retain shape) for measurements in inaccessible places
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. range -20 to +180 °C
Meas. Range 0 to +100 %RH
  		0628 0022  
Sword probe for measuring humidity and temperature in stacked material
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. range -20 to +70 °C
Meas. Range 0 to +100 %RH
  		0636 0340  
Thin humidity probe incl. 4 attachable protection caps for ambient air measurements, measurements in exhaust air ducts and equilibrium moisture measurements
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. range -20 to +70 °C
Meas. Range 0 to +100 %RH
  		0636 2130  
Robust humidity probe e.g. for measuring equilibrium moisture or for measurements in exhaust ducts to +120°C
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. range -20 to +120 °C
Meas. Range 0 to +100 %RH
  		0636 2140  
High humidity level probe w/ heated sensor element, no humidity on sensor
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. range -20 to +85 °C
Meas. Range 0 to +100 %RH
  		0636 2142  
Duct humidity/temperature probe, can be connected to telescopic handle 0430 9715
Meas. range -20 to +70 °C
Meas. Range 0 to +100 %RH
  		0636 9715  
Standard ambient air probe up to +70°C
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. range -20 to +70 °C
Meas. Range 0 to +100 %RH
  		0636 9740  
Highly accurate reference humidity/temp. probe
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. range -20 to +70 °C
Meas. Range 0 to +100 %RH
  		0636 9741  
Standard pressure dew point probe for measurements in compressed air systems
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. Range 0 to +100 %RH
  		0636 9840  
Precision pressure dew point probe for measurements in compressed air systems incl. cert. with test point -40°C tpd
(Plug-in head, connection cable 0430 0143 or 0430 0145 required)
Meas. Range 0 to +100 %RH
  		0636 9841  
Thermal
Robust hot bulb probe, Ø 3 mm, for measurements in the lower velocity range, 2m cable (PVC)
Meas. range -20 to +70 °C
Meas. Range 0 to +10 m/s
  		0628 0035  
Quick-action hot wire probe, Ø 10 mm, with telescopic handle, for measurements in the lower velocity range with direction recognition
Meas. range -20 to +70 °C
Meas. Range 0 to +20 m/s
  		0635 1041  
Thermal anemometer probe, Ø 10 mm, w. telescopic handle, measures air flow in lab fume cupboards to DIN EN 14175
Meas. range 0 to +50 °C
Meas. Range 0 to +5 m/s
  		0635 1047  
Robust hot bulb probe, Ø 3 mm, with handle and telescopic handle for measurements in the lower velocity range
Meas. range -20 to +70 °C
Meas. Range 0 to +10 m/s
  		0635 1049  
Affordable, robust hot bulb probe, Ø 3 mm, for measurements in the lower velocity range, with handle
Meas. range -20 to +70 °C
Meas. Range 0 to +10 m/s
  		0635 1549