Bedrock Elite i5 — STIPA Meter & Class 2 Sound Level Meter for Voice Alarm & PA System Speech Intelligibility Testing
The Bedrock Elite i5 is an IEC 61672-1 Class 2 STIPA meter and sound level meter designed for measuring speech intelligibility in voice alarm systems, PA/GA systems, public address installations, and any electroacoustic system requiring compliance with IEC 60268-16. It delivers fast, accurate STIPA results with simple field operation — ideal for fire safety engineers, PA system commissioning technicians, and annual voice alarm inspection teams who need a reliable, standards-compliant STIPA instrument.
The i5 embodies the Bedrock Elite philosophy: everything you need, nothing you don't. For voice alarm commissioning, STIPA measurement and background level recording are the core requirements. The i5 delivers both in an instrument that is simple enough for a technician unfamiliar with acoustic measurement to operate confidently on the first day of use — with no training on complex menus or unused features.
Key Measurement Capabilities
STIPA measurement — IEC 60268-16 compliant, the international standard for speech intelligibility in PA and voice alarm systems
Sound level metering — IEC 61672-1 Class 2 for background noise level measurement (required by IEC 60268-16 for valid STIPA measurement)
Simple single-mode operation — designed for field technicians performing commissioning and inspection work
When to Use the i5
Voice alarm system commissioning — EN 54-16, BS 5839-8, ISO 7240-19 compliance. STI ≥ 0.50 (Fair) required at all critical listening positions.
PA/GA system acceptance testing per IEC 60849 and IEC 60268-16
Annual verification inspections of voice alarm and emergency PA systems
Railway, airport, metro, and transport hub PA system testing per EN 50849
Industrial PAGA system commissioning on offshore platforms and industrial facilities
Hotel, hospital, shopping centre, and public building voice alarm commissioning
Compatible Talkboxes
The i5 (as STIPA receiver) works with both Bedrock Elite talkboxes:
Bedrock BTB65 Talkbox — standard output for indoor PA systems and typical acoustic environments
Bedrock BTB115 Advanced Talkbox — 115 dB SPL maximum output for large venues, outdoor systems, airports, and challenging acoustic environments with high background noise
When You Need More Than STIPA
If you also need Full STI measurement, octave band analysis, reverberation time, or data logging alongside STIPA, see the Bedrock Elite i9 (STIPA + octave + RT60 + data logging) or Bedrock Elite i10 (Full STI in under 60 seconds + every capability). All Bedrock Elite instruments include their full featured capability at one price — no module fees.