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Testo
Testo 552 Digital Vacuum Gauge with Bluetooth
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Testo 552: Pirani; 0–26.66 mbar / 20,000 microns; Bluetooth; IP42. RFQ.
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Key parameters
Accuracy
±(10 microns + 10% of m.v.) from 100 to 1,000 microns @ +22 °C
Sensor type
Pirani sensor
Vacuum Range
0 to 26.66 mbar / 0 to 20,000 microns
Resolution
1 micron (0–1,000); 10 (1k–2k); 100 (2k–5k); 500 (5k–10k); 5,000 (10k–20k)
Overload
Absolute 6 bar / 87 psi; relative 5 bar / 72 psi
Connections
2 × 1/4″ SAE (7/16″ UNF); 1 × MiniDIN (testo 570)
Fits HVAC/R evacuation checks where you need a Testo 552—Pirani digital vacuum gauge spanning 0 to 26.66 mbar (0 to 20,000 microns) with Bluetooth 4.0 to the Smart App, dual 1/4″ SAE connections, and IP42 protection.
Key advantages
- Sensor — Pirani vacuum sensor
- Range — 0 to 26.66 mbar / 0 to 20,000 microns
- Accuracy — ±(10 microns + 10% of m.v.) from 100–1,000 microns @ +22 °C
- Bluetooth — Bluetooth 4.0; Smart App
- Connections — 2× 1/4″ SAE (7/16″ UNF)
Typical applications
- AC/R evacuation.
- Micron-level vacuum checks.
- Service reporting via app.
Selection guide
- App device
- Units preference
- Overload awareness
Common mistakes
- Oil-contaminated sensor.
- Exceeding overload.
- Bluetooth left on draining battery.
When to RFQ / what to tell us
- Quantity.
- Ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 43321 |
| Brand | Testo |
| Model | 552 Bluetooth Vacuum Gauge |
| Product type | Vacuum Gauge |
| Sensor type | Pirani sensor |
| Vacuum range | 0 to 26.66 mbar / 0 to 20,000 microns |
| Accuracy | ±(10 microns + 10% of m.v.) from 100 to 1,000 microns @ +22 °C |
| Resolution | 1 micron (0–1,000); 10 (1k–2k); 100 (2k–5k); 500 (5k–10k); 5,000 (10k–20k) |
| Overload | Absolute 6 bar / 87 psi; relative 5 bar / 72 psi |
| Connections | 2 × 1/4″ SAE (7/16″ UNF); 1 × MiniDIN (testo 570) |
| Bluetooth | Bluetooth 4.0; testo Smart App monitoring/reporting |
| Protection class | IP42 |
Documents
FAQ
Q: Range? A: 0 to 26.66 mbar (20,000 microns).
Q: Sensor? A: Pirani.
Q: What should I send for a quote? A: Quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Accuracy | ±(10 microns + 10% of m.v.) from 100 to 1,000 microns @ +22 °C |
| Sensor type | Pirani sensor |
| Vacuum Range | 0 to 26.66 mbar / 0 to 20,000 microns |
| Resolution | 1 micron (0–1,000); 10 (1k–2k); 100 (2k–5k); 500 (5k–10k); 5,000 (10k–20k) |
| Overload | Absolute 6 bar / 87 psi; relative 5 bar / 72 psi |
| Connections | 2 × 1/4″ SAE (7/16″ UNF); 1 × MiniDIN (testo 570) |
| Parameters | mmHg, Torr, mbar, hPa, micron, inH2O, inHg, Pa |
| Protection Class | IP42 |
| Bluetooth | Bluetooth 4.0; testo Smart App monitoring/reporting |
| Battery | 2× AA; 50 h without Bluetooth/backlighting |
| Dimensions Weight | 160 × 110 × 50 mm; approx. 500 g |
| Operating Temperature | −10 to +50 °C |
| Order Number | 0560 5522 |
| Measuring Rate | 0.5 s |