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Fieldpiece Instruments SMG5 Digital Megohmmeter, 1000 VDC, Backlit LCD The Fieldpiece digital megohmmeter, model SMG5, is a compact standalone meter designed for checking HVAC compressor insulation. The SMG5 provides a 1000 volt source, monitors current and displays the resistance between the test points. Maximum current output is less than 1 milli-amp. It can be used to determine the condition of insulation from winding to ground in a motor, compressor, or transformer. Includes a case, alligator clip lead tip and leads with removable tips.,
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The NAVAC uses the Pirani high-precision vacuum sensor to precisely measure vacuum levels. Digital display affords a comprehensive view of vacuum conditions. When reaching the preset vacuum level, it will buzz as a reminder. When the vacuum level decreases from the preset vacuum level.

Yellow Jacket 69075 Digital Micro Vacuum Gauge,

Universal Enterprises DM505 Digital Multimeter 1000V AC/DC

Universal Enterprises DM515 Digital Multimeter W/Temperature,
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Monti & Associates MA-1028 Digital Multimeter W/Temperature

Fluke Electronics FLUKE-16 Digital Multimeter W/Thermometer

Testo 0563-0510 Digital Pressure Manometer 0-100 HPa 119 mm" L x 46" W x 25" H 0-50 deg,
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General Tools SAM990DW Digital Psychrometer, Plus/Minus 3% of Reading from,
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Amprobe THWD-3 Relative Humidity Temperature Meter, 0 - 100% RH, -20 to 60 The THWD-3 uses a precision capacitance sensor to deliver accurate performance with long term stability. This high accuracy instrument measures the full range of relative humidity from 0% to 100% and features an exceptionally wide ambient temperature measurement range from -20 to 60 deg C. The sensor is mounted on along shaft extending from the top surface of the unit, making probing into ductwork and hard to reach areas more easy. The large LCD displays two measurements simultaneously with a full range of display options including hold, min, max, dew point (DP) and wet bulb (WB).,

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The DTH35 digital psychrometer measures temperature, relative humidity, and calculates wet bulb, dew point, and enthalpy of moist air (air with humidity). The housing design is useful for in-duct measurement, as well as ambient or vent outlet applications. A large, easy to read display, and built in magnet improves ease of use.

• Large-digit backlit display
• Designed for in-duct measurement
• 4 x 3/8" probe
• Magnetic mount for hands-free use
• Probe cover functions as an extension for hard to reach areas
• Measures temperature and relative humidity
• Calculates wet bulb, dew point, enthalpy
• Min/max and data hold
• 5 - 121.8 deg F wet bulb
• - 125 BTU/lb enthalpy
• Plus/Minus 3% at 77 deg F, 1 - 9% RH accuracy
• Response time 6 sec typical for stable reading
• Press any key to activate the blue backlight for 1 seconds
• 2 min auto power off
• Low voltage indicator
• 2 points RH calibration (32.8% and 75.3%)
• Greater than 11 hr battery life without backlight
• (2) CR232 Batteries and Manual

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Yellow Jacket 49017 Digital Series 41 Replacement Gauge 3-1/8" LCD,