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 High Quality HVAC service tools for professionals: manifold gauge set,deep vacuum pumps, Clamp meters, refrigerant leak detectors, charging scales, Plumbingtool:tube bender/cutter, adapters/connectors. See all at: Warranty provided.
VIOT_HVAC, Serving HVAC community with high quality tools and parts. Available 24X7 at Or my EBay Store.

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  • VIOT Profession​al AC HVAC Tools
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General Interest
BRAND NEW Heated Diode(Pentode) Halogen Refrigerant Leak Detector, Air Pump HVAC Tool.
You are looking at a brand new, Portable Automatic Field Halogen refrigerant Leak Detector, with heated diode sensor, Air Pump. Model: HD2. Most Sensitive Detector in the World! beat every other detectors of this kind on the US market by competitors research.


  • Our Newest Design and Technology in Halogen Detection!
  • Heated diode sensor
  • Moisture will not cause false alarm
  • New design with new Microprocessor controlled circuit and Advanced Digital Signal Processing
  • Detects ALL halogenated refrigerants, CFCs, HCFCs, HFCs, and their blends(R500, R503, R22, R123, R124, , R502, R134a, R404a, R410A, R407, R125, AZ50, HP62, MP39, R403A, R12, R11, etc
  • Audible alarm with variable frequency, and visual LED Multi-color display.
  • Sensitivity adjustment, provides more control.
  • On/Off switch control and reset button to any back ground halogen level.
  • High Sensitivity: Less than 0.1 oz/year (or 3 grams/year R22)
  • Optimized speed of Air pump provides a positive flow of sampling air.
  • Come with a hard plastic carrying case to provide protection.
  • AC adapter with Battery backup
  • Batteries(4 AA, included) backup for Cordless operation.
  • 15.5" flexible rubber lined SS wand, reach to almost any tight space.
  • with Low battery warning.

  • Aluminum ALLOY CASING: Alloy casing has high heat - dissipation keeping motor and pump cool, light weight and efficient.
  • Two-Stage Rotary Vane Deep Vacuum Pump
  • Direct drive motor allowing easy starting and is maintenance free.
  • Silicon steal parts where metal fatigue occur, making our pumps more durable.
  • Direct coupling between the motor and pump results in quiet running and good performance.
  • FORCE FED LUBRICATION Provides clean, filtered oil to all internal bearings and wearing surfaces regardless of the pump operation. Cleaner oil reduces ware and break downs.
  • Great tool for: System evacuation(Refrigeration or Air Conditioning), Printing, medical, Vacuum Packing, Hot Forming Plastics and other requirements where a high quality pump may be required.
  • Oil drain valve positioned at bottom of oil reservoir.
    POWER: 1/2 HP(380 W)
    INTAKE PORT: 1/4 inch SAE, and 3/8 inch SAE flair
    WEIGHT: 27 Lb
    MAX VACUUM:15 MICRONS, best rating in the industry!
  • Come with a bottle of vacuum oil, just dump it in, you are ready to go!
  • Compare to any supplier before coming back to pick this up. We have walked extra miles testing the pumps before we pack it. Every pump has been tested to pull to the max vacuum twice, and dumped the vacuum oil twice to give you an extra clean pump inside out!

  1. R410A Manifold:
    • Large, easy-to-read 3 and 1/8" diameter steel case red and blue; front access for easy field recalibration;
    • mounted on Aluminum alloy Block body (light weight, but stronger than brass)
    • Color coded Easy to grab big knob control valve handles, double “O”-ring piston for reliability and long service life.
    • a sight viewing glass and see the inside action when charging/diagnosis/recovery
    • a Schroeder valve on the service line
    • Pressure in PSI
    • Heavy duty SS hook included
    • Temperature in F for these refrigerants: R410A, R22, R404A, making this manifold one set does it all.
  2. Come with: 3 Color Coded High Pressure Hoses
    • 60 inch in length each
    • 800 PSI working pressure; 4000 PSI burst pressure
    • 1/4" female SAE brass fitting to the gauge block
    • 1/4 " female SAE brass fitting on the service side with a 45 degree turn for easy access.
    • Teflon O-ring washer provide the best seal and the most durability)
    • a package of hose seal repair kit included
  3. Note: Other Model GM410 with 5/16" hose fittings available. make sure to choose the right model, or purchase this GM410a gauge set PLUS a pair of adapters: model CV23p to access R410a systems with 5/16" ports.