Nor145 vs Nor150: Which Norsonic Analyser Is Right for Your Project?
The Nor145 and Nor150 are both IEC 61672 Class 1 instruments from Norsonic, Norway — but they are designed for different workflows. This comparison guide helps acoustic consultants, test laboratories, universities, and government agencies choose the correct instrument based on application, measurement standards required, and budget.
Nor145 — Single-Channel Class 1 Sound Level Meter
- IEC 61672-1 Class 1 accuracy — PTB (Germany) and LNE (France) type-approved; valid for all regulatory submissions
- 4.3-inch color touchscreen with intuitive smartphone-like interface — minimal training required
- 4G LTE, WLAN, and GPS connectivity for remote monitoring, geo-tagging, and NorCloud integration
- NorCloud platform integration — real-time remote access, automated threshold alerts via email/SMS, and PDF/Excel report generation
- Single microphone channel — measures one position at a time
- Full 1/3 octave band analysis, LAeq, LAF, LAS, LCpeak, L10, L50, L90, L95 logging
- Battery-powered — over 10 hours typical field autonomy for remote site deployment
- 3-year manufacturer warranty
- Nor145 full technical specifications →
Nor150 — Dual-Channel Sound and Vibration Analyser
- IEC 61672-1 Class 1 — two fully phase-matched, synchronized input channels
- ISO 16283-1/-2/-3 building acoustics: simultaneous source and receiver channel; DnT,w, Ln,w, R'w calculation; T20 reverberation
- ISO 9614 sound intensity: real-time p-p intensity measurement with Nor1290 probe; PRI display; sound power calculation
- ISO 3382 room acoustics: reverberation time T20, T30, EDT, C80, D50 for classrooms, auditoria, and offices
- ISO 8041 human vibration: WBV, HAV, VDV, MTVV with appropriate IEPE accelerometer
- Advanced signal analysis: FFT, CPB (1/1 and 1/3 octave), cross-spectrum, coherence, transfer function
- Best for: full-service acoustic consulting, sound intensity, research, and teaching laboratories
- 3-year manufacturer warranty
- Nor150 full technical specifications →
Side-by-Side Comparison
- Channels: Nor145 = 1, Nor150 = 2
- ISO 16283: Nor145 partial, Nor150 full
- ISO 9614: Nor145 No, Nor150 Yes
- ISO 3382: Nor145 partial, Nor150 full
- ISO 8041 vibration: Nor145 No, Nor150 Yes
- NorCloud: Both yes
- 4G/GPS: Nor145 Yes, Nor150 No
- Battery: Nor145 >10h typical, Nor150 >8h typical
Application Decision Guide — Choose the Right Instrument
- Environmental noise survey (ISO 1996) → Nor145
- Construction site noise monitoring with NorCloud alerts → Nor145
- Occupational noise exposure assessment (ISO 9612) → Nor145
- Long-term unattended monitoring with GPS geo-tag → Nor145
- ISO 16283-1 airborne sound insulation (DnT,w) → Nor150
- ISO 16283-2 impact sound insulation (Ln,w) → Nor150
- ISO 9614 sound intensity and sound power → Nor150
- ISO 3382 room acoustics (T20, STI) → Nor150
- ISO 8041 whole-body or hand-arm vibration → Nor150
- University all-in-one teaching lab instrument → Nor150
- Both applications? → Nor145 + Nor150 pair (common for acoustic consulting firms)
Price Positioning
- Nor145 is the more cost-effective single-channel solution — ideal for firms whose primary work is environmental and occupational noise
- Nor150 commands a higher price point reflecting its dual-channel architecture and multi-standard analysis capability — justified when building acoustics or sound intensity is a regular service
- Contact Norsonic Asia for current pricing in your region and currency
Related Resources
- Building Acoustics Buying Guide — Nor150-focused system
- Sound Intensity Buying Guide — ISO 9614 system with Nor150
- Noise Monitoring Playbook — Nor145 deployment guide
- ISO 16283 Quick-Start Field Checklist