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Product Specifications:
| Item | Temperature Humidity Meter |
| Ambient Temp. | -4°F to +122°F, -20°C to +50°C (Indoor), -4°F to +158°F, -20°C to +70°C (Outdoor) |
| Ambient Temp. Accuracy | -1.8°F to +1.8°F |
| Application | Field Applications |
| Auto Shutoff | Yes |
| Battery | AAA |
| Battery Run Time | 80 hrs. |
| Battery Type | (2) AAA |
| Calibration Certificate | NIST |
| Data Hold | Yes |
| Data Logging | No , Without Data Logging |
| Data Storage | Yes |
| Depth | 1" |
| Dew Point Range | -90.4°F to +122°F |
| Dew Point Range | -90.4 Degrees to 122 Degrees F |
| Display Screen Type | LCD |
| Height | 7" |
| Humidity | 10% to 90% |
| Humidity Accuracy | -3% to +3% |
| Humidity Accuracy | +/-3% |
| Humidity Resolution | 0.1% |
| Included Batteries | Yes |
| Ip/nema Rating | Not Rated |
| Max. Dew Point | Max Of 122°F |
| Max. Wbgt | 122°F |
| Memory | Maximum/Minimum |
| Meter Type | Dew Point And Wet Bulb Humidity Meters With Onboard Main Probe |
| Operating Temp. | -4°F to +122°F |
| Overall Depth | 1" |
| Overall Height | 7" |
| Overall Width | 1.9" |
| Probe Design | Onboard |
| Properties Measured | Ambient Temperature, Dew Point, Relative Humidity, Wet Bulb Temperature |
| Relative Humidity | 0% to 100% |
| Response Time | 60 sec. |
| Sensor Type | Capacitance |
| Size | 7" x 1.9" x 1" |
| Temp. Accuracy | -1.8°F to +1.8°F |
| Temp. Resolution | 0.1 Degrees F |
| Temp. Resolution | 0.1° , 0.1°F |
| Wet Bulb Globe Temp. | -6.9°F to 122°F |
| Wet Bulb Temperature Range | -6.9 Degrees to 122 Degrees F |
| Width | 1.9" |
| With Calibration Certificate | Yes |
Shipping Info:
| Ship weight (kg) | 0.14 |
| Ship height (cm) | 24.89 |
| Ship length (cm) | 9.4 |
| Ship width (cm) | 2.54 |
| HS code | 9025803500 |
| Country of Origin | CN |
Product Details:
- Special Features: Simultaneous Display of %RH, Temperature and Dew Point or Wet Bulb or Probe Temperature, Calculates T1 T2 Differential (Air Temperature Minus Optional External Probe) and T2 Dew Point, Optional RH Calibration Bottles
Product Variants
| Product | Model | Size | Depth | Overall Width | Display Screen Type | Overall Height | Dew Point Range | Temp. | Temp. Resolution | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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SDL500 | 7.2" x 2.9" x 1.9" | 1.9" | 2.9" | Backlit LCD | 7 1/5" | -13.5°F to +120.1°F | +32°F to +122°F | 0.1°F | €786.78 | |
![]() |
EN300 | 9.8" x 2.8" x 1.3" | 1.3" | 2 4/5" | LCD | 9 4/5" | - | - | 0.1°F | €567.26 | |
![]() |
RH390 | 7.8" x 1.7" x 1.3" | 1.3" | 1.7" | Backlit LCD | 7 4/5" | -22°F to +199°F | -22°F to +199°F | 0.1°F | €424.67 | |
![]() |
RH490 | 7.8" x 1.7" x 1.3" | 1.3" | 1.7" | Backlit LCD | 7 4/5" | -22°F to +199°F | -22°F to +199°F | 0.1°F | €936.35 | |
![]() |
44550 | 5.9" x 0.8" x 0.7" | 0.7" | 4/5" | LCD | 5.9" | - | +14°F to +122°F | 0.1°F | €83.91 | |
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RH300 | 7" x 1.9" x 1" | 1" | 1.9" | LCD | 7" | -90.4°F to +122°F | - | 0.1°F | €263.71 | |
![]() |
RH350 | 9" x 2.2" x 1.7" | 1.7" | 2 1/5" | Backlit LCD | 9" | -90.4°F to +122°F | - | 0.1°F | €410.03 |
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Contact us
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We're available Monday through Friday, from 07:30 until 17:00.
EXTECH RH300-NIST Temp/humidity Meter 0 To 100 Relative Humidity Range
€442.62 /unit
