Description
General Industrial Instrument, General Scientific Instrument เครื่องมือวัด ทั่วไป ในงาน อุตสาหกรรม และ วิทยาศาสตร์ Manometer เครื่องวัดความดันอากาศ Manifold/Pressure Gauge – เครื่องวัดความดันต่าง Differential Pressure Manometer
HD780 : Digital Manifold/Pressure Gauge (500psi) ยี่ห้อ Extech, USA
Dual-Input Heavy-Duty Preassure/Type-K Temperature Meter
Extech’s Heavy duty Digital Manifold/Pressure Gauge simultaneously measures suction line or liquid line pressure and line temperature to calculate and display superheat and sub cooling for A/C units. It also has dual inputs measuring differential pressure (P1-P2) and Type K temperature (T1-T2). For use with R22 and R410A refrigerants. Included are heavy duty connection hoses, Type K Temperature Clamp probe, and bead wire Temperature probe.
Features:
- Dual differential inputs for pressure and temperature
- Displays 5 types of pressure units
- For use with R22 and R410A refrigerants
- Standard 1/4 NPT male flare fittings
- Large backlit LCD displays P1, P2, P1-P2, T1, T2, T1-T2, Ambient Temperature, plus Min/Max/Avg
- Dual Type K inputs with Electronic Offset adjustment to compensate for thermocouple differences
- Large multi-line backlit LCD display
- Data Hold plus Auto power off
- Complete with two heavy duty pressure hoses, protective rubber holster, two Type K temperature clamp probes, two general purpose Type K bead wire temperature probes, Universal AC adaptor with plugs (US, EU, UK, AUS), 9V battery, and hard case
For complete specs please download the product datasheet (not available for some accessories)
Specifications:
Pressure/Vacuum | Range | Resolution | Basic Accuracy |
---|---|---|---|
psi | -14 to 500psi | 0.1psi | ±1psi |
bar | -0.96 to 34.47bar | 0.01bar | ±0.1bar |
kPa | -96 to 3447kPa | 1kPa | ±7kPa |
inHg | -28 to 999.9inHg | 0.1inHg | ±2inHg |
cmHg | -72 to 2585cmHg | 1cmHg | ±5cmHg |
Temperature (Type K) | -76°F to 999.9°F (-60°C to 537.0°C) | 0.1°F/°C | ±(0.15%rdg + 1.8°F/1°C) |
Temperature (Ambient – NTC) | 32.0°F to 122.0°F (0°C to 50.0°C) | 0.1°F/°C | ±2°F/1°C |
Maximum Overload Pressure | 800psi | ±(4.0%+20d) | |
Dimensions | 8.3 x 3.1 x 2″ (212 x 78 x 51mm) | ||
Weight | 11.9oz (338g) |


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Extech’s Heavy duty Digital Manifold/Pressure Gauge simultaneously measures suction line or liquid line pressure and line temperature to calculate and display superheat and sub cooling for A/C units. It also has dual inputs measuring differential pressure (P1-P2) and Type K temperature (T1-T2). For use with R22 and R410A refrigerants. Included are heavy duty connection hoses, Type K Temperature Clamp probe, and bead wire Temperature probe. |
Accessories:
- Complete with two heavy duty pressure hoses, protective rubber holster, two Type K temperature clamp probes, two general purpose Type K bead wire temperature probes, Universal AC adaptor with plugs (US, EU, UK, AUS), 9V battery, and hard case
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