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DeFelsko Dew Point Meter Positector DPM

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SPESIFIKASI DeFelsko Dew Point Meter Positector DPM

DeFelsko PosiTector DPM Technical Specifications

  Range Accuracy Resolution
Surface Temperature

-40° to 80°C ± 0.5° C 0.1° C
80° to 190° C ± 1.5° C
-40° to 175° F ± 1° F 0.1° F
175° to 375° F ± 3° F
Infrared Surface Temperature -70° to 380°C ± 1° C + 1%** 0.1° C
-94° to 716° F ± 2° F + 1%** 0.1° F
Air Temperature  -40° to 80° C ± 0.5° C  0.1° C
-40° to 175° F  ± 1° F  0.1° F 
Humidity 0 to 100% ± 3% 0.1%
Wind Speed 0 to 20 m/s ± 3% Full Scale 0.1 m/s
0 to 44 mph 0.1 mph
Dew Point -60° to 80° C ± 3° C‡ 0.1° C
-76° to 175° F ± 5.4° F‡ 0.1° F
 * DPM IR models only
** At 23° C (73° F) ambient
† DPM A models only
‡ dependent on RH. See Dew Point (Td) Accuracy for more information.


DeFelsko Positector DPM Ordering Guide:

PosiTector DPM Ordering Guide


All DeFelsko NPM gauges are packed with humidity, air and surface temperature sensors, protective rubber holster with belt clip, wrist strap, 3 AAA batteries, instructions, nylon carrying case with shoulder strap (built-in probe models), hard shell carrying case (cabled probe models), protective lens shield, Long Form Certificate of Calibration traceable to NIST, USB cable, two (2) year warranty. 

SIZE: 159 x 61 x 31 mm (6.25" x 2.4" x 1.2")

WEIGHT: 150 g (5.3 oz.) without batteries 

Selection of probes:

1.Separate cabled probe:

  • Includes magnetic surface temperature sensor with armored cable. Ideal for unattended auto logging during work shift or at night.
  • Includes magnetic mount for rubber holster to attach the instrument onto steel structures.
  • Accepts other optional K-type sensors including liquid temperature and self-adhering probes. 

2. Built-in probe which includes built-in surface temperature sensor


 A higher dew point indicates more moisture in the air; a dew point greater than 20 °C (68 °F) is considered uncomfortable and greater than 22 °C (72 °F) is considered to be extremely humid. Frost point is the dew point when temperatures are below freezing. 


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PosiTector® DPM

Dew Point Meters for Environmental Monitoring

Measures and records climatic conditions including: relative humidity, air temperature, surface temperature, dew point temperature, wind speed, and difference between surface and dew point temperatures.

Ideal for surface preparation as required by ISO 8502-4, BS 7079-B4, ASTM D3276, IMO PSPC, SSPC-PA7, and US Navy NSI 009-32.

Conforms to ISO 8502-4, BS 7079-B4, ASTM D3276, IMO PSPC, SSPC-PA7, US Navy NSI 009-32, and Navy NAVSEA 009-32






DeFelsko Probe Interchangeability

LFC is the authorized distributor for DeFelsko in Singapore and Indonesia. Contact us to purchase the PosiTector DPM or any other DeFelsko products.