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Multi-Functional Environmental Meter

Multifunctional Environmental Meter
  • RoHS Icon


Item# RH87

Please contact Technical Sales Team for assistance.
Multifunctional Environmental Meter RH87 RH87
  • Discontinued, Replaced by THDP-10.

  • Measure Air Velocity (FPM), Air Volume (CFM) and Sound (dB)
  • Measure Temperature and Humidity (°F/°C) and Light (Lux)
  • Standard and Metric Units
  • Backlit LCD Display
  • Min/Max/Avg/DIF Modes
  • Data Hold
  • Auto-Ranging
  • Auto Power Off
  • Low Battery Indicator
  • One-Hand Operation

RH87 Model Options

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Maximum Temperature Measurement
Display Type
Supply Power

The RH87 is a digital multifunctional environmental meter which combines the function of sound level, luminometer, relative humidity meter, temperature meter and anemometer.

Power Requirements: 9V battery (included)
Low Battery Indication: Displayed
Display: 4½ digit backlit LCD
Response Time: 2 updates/second (display only)
Operating Temperature: -10 to 60°C (14 to 140°F)
Storage Temperature: -10 to 50°C (14 to 122°F)
Weight: 430 g (15.3 oz)
Dimensions: 280 L x 89 W x 50 mm H (11 x 3.5 x 2")
Range Resolution Accuracy Temperature: -10 to 60°C (14 to 140°F) 0.1°C (0.1°F) ±-1.5°C (±2.7°F)
Relative Humidity: 20 to 80% RH 0.1% RH ±3% RH @ 750oF < 20% RH and > 80% RH 0.1% RH ±5% RH @ 75oF
Sound Level: 30 dB to 130 dB 0.1 dB ±1.5 dB
Light Level: 0 to 2000 Lux 1 Lux ±5% of Rdg plus 10, 2001 Lux to 20,000 Lux 10 Lux ±5% of Rdg plus 10, 20,001 Lux to 50,000 Lux 100 Lux ±5% of Rdg plus 10
Air Flow: 1.6 to 65.7 ft/s 0.1 ft/s ±3% of Rdg plus 10, 0.5 to 20 m/s 0.1 m/s ±3% of Rdg plus 10, 0.9 to 38.9 knots 0.1 knots ±3% of Rdg plus 10, 1.8 to 72 km/h 0.1 km/h ±3% of Rdg plus 10
Air Volume: 0 to 999,900 CFM 0.1 to 100 CFM ±3% of Rdg plus 10 0 to 999,900 CMM 0.1 to 1000 CMM ±3% of Rdg plus 10
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Rated 4 out of 5 by from Air sample I bought this unit for this unit after comparing to 12 other meters. It measures twice a second, at 2.5% accurate with a cost of 20% of other machines at 2% accuracy. Indicates 5 different samples including RH, temp, noise, light, and air flow at the press of a button. Only reason for not giving a perfect 5 stars is I have only had it 3 weeks.
Date published: 2016-09-01
Rated 4 out of 5 by from Great all-around meter I bought this one month ago both for light consulting use and teaching 1st year engineering students. Luminance is a nice touch. Very happy so far.
Date published: 2019-02-17
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NIST Certified? Comes with Certificate of calibration (COC)? Where to send to for annual certification/ or calibration?. What kind of calibration do you provide? Can we have more T&amp;RH calibration data points .

Asked by: Amador Natividad
How much does it cos t for proof of calibration? Because it needs to be calibrated.
Answered by: Boz1
Date published: 2021-11-09
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