Free help & advice support@plumbestore.com

  • Free basic shipping over $35

    LTL freight charges may apply

  • Free help & advice

    Questions welcome!

  • Stock items ship same day

    For orders before 1pm CST

  • Open Mon-Fri

    9AM-5PM CST

plumbEstore  |  SKU: 28143

Sauermann Si-RV4 Wireless Vacuum Probe

Regular price $206.38
Shipping calculated at checkout.

This wireless vacuum probe accurately measures absolute pressure, to ensure optimal refrigerant system evacuation down to deep vacuum in air conditioning, refrigeration and heat pump installations.

The Si-RV4 allows all types of refrigerant-based installations to be serviced quickly and safely. It connects easily to the Si-RM350 and Si-RM450 manifolds and to the mobile application Sauermann Pilot.

A1 / A2L / A2 / A3 refrigerants compatible
Compatible with some B1 refrigerants, see list of refrigerants for details on which refrigerants are compatible. The device must not be used with ammoniac refrigerant (NH3 / R717).

Designation: Si-RV4 Sales reference: 28143

From -20 to 50°C (-4 to 122°F) This wireless probe provides accurate temperature measurement to enable the calculation of superheat and subcooling values in air conditioning, refrigeration and heat pump installations. Its parrot-shaped clamp ensures perfect contact with pipes from 6 to 42 mm. The Si-RT7 allows all types of refrigerant-based installations to be serviced quickly, thanks to the excellent responsiveness of its NTC sensor. It connects easily to the Si-RM350 and Si-RM450 manifolds, as well as to the mobile application Sauermann Pilot. 

Key Features

  • High accuracy Pirani® sensor, 50 microns deep vacuum
  • A1, A2L and A3 refrigerants compatible
  • Quick & Strong wireless auto connection (100 m range)
  • Real time readings on manifold and mobile app
  • IP54 dust & rain proof probe

Applications

  • Superheat measurement
  • Subcooling measurement
  • Refrigeration service
  • Heat pump diagnostics
  • Air conditioning service

Technical Specifications

Specification Value
Measurement & Discharge Valves 1 Vacuum Input
Measuring Range 50 to 25,000 Microns
Pressure Sensing Accuracy 100 to 2,000 Microns: ±(5% of measured value ±5 Microns)
Temperature Dependence: ±0.0005 × (T-20) Microns when T < 0°C or T > 30°C
Available Units Micron, mbar, Torr, mTorr, inH₂O, inHg, mmHg, hPa, Pa
Resolution Micron: 1 Micron (50–1,000), 10 Microns above
mbar: 0.00001 mbar (0.06666–1.33322), 0.0001 mbar above
Torr: 0.001 Torr (0.050–1.000), 0.01 Torr above
mTorr: 1 mTorr (50–1,000), 10 mTorr above
inH₂O: 0.0001 inH₂O (0.0267–0.5352), 0.01 inH₂O above
inHg: 0.000001 inHg (0.001968–0.039370), 0.00001 inHg above
mmHg: 0.001 mmHg (0.050–1.000), 0.01 mmHg above
hPa: 0.0001 hPa (0.0666–1.3332), 0.001 hPa above
Pa: 0.01 Pa (6.66–133.32), 0.1 Pa above
Overload Pressure 27.5 bar (400 psi)
Burst Pressure 35 bar (507 psi)

*All accuracies specified were obtained under laboratory conditions and are guaranteed only for measurements performed under the same conditions or with calibration compensation.

Warranty:

Technical Documents:

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.