
HTC CAL-900 Sound Level Calibrator
Product Summary:
The HTC CAL-900 is a precision sound level calibrator with dual calibration levels (94dB & 114dB), designed to calibrate 1” and ½” microphones used in sound measurement applications.
Key Features:
Dual sound pressure output: 94dB and 114dB
Frequency: 1000±0.01% Hz with A, B, C, D or linear weighting
High accuracy of ±0.3 dB
Compatible with 1” and ½” microphones
Stable operation from -10°C to 50°C
Compact and portable design
Power: AAA 1.5V x 4 batteries
Lightweight: Only 200g
Standards: Compliant with GB/T15173, IEC942
Application:
Calibration of professional sound level meters
Acoustic testing in laboratories
Industrial noise measurement tool calibration
Environmental monitoring setups
Product Benefits:
Ensures microphone accuracy for precise readings
Suitable for both field and lab use
Reliable performance across wide temperature and altitude ranges
Easy-to-use with standard batteries
Long operational life due to efficient power design
FAQs
Q1: What devices can I calibrate using the HTC CAL-900?
A1: It is ideal for calibrating 1” and ½” measurement microphones used in sound level meters.
Q2: Does it support multiple weighting networks?
A2: Yes, it allows calibration using A, B, C, D, or linear weighting networks at 1000 Hz.
Q3: Is the calibrator portable for field use?
A3: Absolutely, it weighs just 200g and is powered by 4 AAA batteries for easy portability.



