TES-1350A digital sound level meter, IEC 61672-1 Class 2, for environmental, traffic, tunnel and workplace noise measurement.
Overview
The TES-1350A is a hand-held digital sound level meter compliant with IEC 61672-1 Class 2 and ANSI S1.4 Type 2. It has a built-in 1/2-inch pre-polarized condenser microphone, a 4-digit LCD with 0.1 dB resolution, 35-130 dB measuring range, A/C frequency weighting, Fast/Slow time weighting, Max Hold, and AC/DC analog output for an external recorder. It is widely used in environmental noise monitoring, occupational health assessment, building acoustics and industrial noise control.
Applications
• Control survey and topographic mapping for road and bridge projects
• Construction layout and stakeout on highways, railways and buildings
• Deformation monitoring of bridges, tunnels and high-rise structures
• Third-party surveying and mapping services
Features
• Digital display with direct readout and onboard data storage
• Robust construction suitable for both laboratory and field use
• Compliant with relevant Chinese and international standards
• Complete with calibration certificate and operation manual
Technical Specifications
| Item | Specification |
| Standard | IEC 61672-1:2013 Class 2; ANSI S1.4 Type 2 |
| Display | 4-digit LCD |
| Range | A/C weight, low 35–100dB; high 65–130dB |
| Resolution | 0.1dB |
| Frequency range | 31.5Hz–8kHz |
| Accuracy | ±1.0dB (94dB@1kHz ref.) |
| Dynamic range | 65dB |
| Frequency weighting | A and C |
| Time weighting | Fast and Slow |
| Max Hold | drift<1dB/3min, resettable |
| Mic | ½-inch pre-polarized condenser |
| Internal cal | 1kHz sine 94dB |
| Output (1350A) | AC 0.65Vrms; DC 10mV/dB |
| Operating | 0–40°C, ≤80%RH |
| Storage | -10–60°C, ≤70%RH |
| Power | 9V battery, approx. 50h |
| Size | 240×68×25mm |
| Weight | approx. 210g |
| Accessories | windscreen, case, battery, earphone plug |
Standards
GB/T 18314, JTG C10, ISO 17123
Standard Delivery
• Main instrument unit
• Power cable / charger
• Operation manual
• Carrying case
• Calibration certificate
FAQ
Q1: What standards does the TES-1350A Digital Sound Level Meter comply with?
A1: The TES-1350A Digital Sound Level Meter is designed and manufactured in accordance with relevant Chinese national (GB) and industry standards, as well as applicable international standards. A calibration certificate is provided with each unit.
Q2: How often should the TES-1350A Digital Sound Level Meter be calibrated?
A2: We recommend annual calibration by iRoad authorized technicians. For high-frequency use, semi-annual calibration is advised. The instrument is supplied with a factory calibration certificate.
Q3: What is the lead time and do you provide training?
A3: Standard units are usually shipped within 7-15 working days. iRoad provides on-site installation and operator training for major equipment; remote video guidance is available for portable instruments.
Overview
The TES-1350A is a hand-held digital sound level meter compliant with IEC 61672-1 Class 2 and ANSI S1.4 Type 2. It has a built-in 1/2-inch pre-polarized condenser microphone, a 4-digit LCD with 0.1 dB resolution, 35-130 dB measuring range, A/C frequency weighting, Fast/Slow time weighting, Max Hold, and AC/DC analog output for an external recorder. It is widely used in environmental noise monitoring, occupational health assessment, building acoustics and industrial noise control.
Applications
• Control survey and topographic mapping for road and bridge projects
• Construction layout and stakeout on highways, railways and buildings
• Deformation monitoring of bridges, tunnels and high-rise structures
• Third-party surveying and mapping services
Features
• Digital display with direct readout and onboard data storage
• Robust construction suitable for both laboratory and field use
• Compliant with relevant Chinese and international standards
• Complete with calibration certificate and operation manual
Technical Specifications
| Item | Specification |
| Standard | IEC 61672-1:2013 Class 2; ANSI S1.4 Type 2 |
| Display | 4-digit LCD |
| Range | A/C weight, low 35–100dB; high 65–130dB |
| Resolution | 0.1dB |
| Frequency range | 31.5Hz–8kHz |
| Accuracy | ±1.0dB (94dB@1kHz ref.) |
| Dynamic range | 65dB |
| Frequency weighting | A and C |
| Time weighting | Fast and Slow |
| Max Hold | drift<1dB/3min, resettable |
| Mic | ½-inch pre-polarized condenser |
| Internal cal | 1kHz sine 94dB |
| Output (1350A) | AC 0.65Vrms; DC 10mV/dB |
| Operating | 0–40°C, ≤80%RH |
| Storage | -10–60°C, ≤70%RH |
| Power | 9V battery, approx. 50h |
| Size | 240×68×25mm |
| Weight | approx. 210g |
| Accessories | windscreen, case, battery, earphone plug |
Standards
GB/T 18314, JTG C10, ISO 17123
Standard Delivery
• Main instrument unit
• Power cable / charger
• Operation manual
• Carrying case
• Calibration certificate
FAQ
Q1: What standards does the TES-1350A Digital Sound Level Meter comply with?
A1: The TES-1350A Digital Sound Level Meter is designed and manufactured in accordance with relevant Chinese national (GB) and industry standards, as well as applicable international standards. A calibration certificate is provided with each unit.
Q2: How often should the TES-1350A Digital Sound Level Meter be calibrated?
A2: We recommend annual calibration by iRoad authorized technicians. For high-frequency use, semi-annual calibration is advised. The instrument is supplied with a factory calibration certificate.
Q3: What is the lead time and do you provide training?
A3: Standard units are usually shipped within 7-15 working days. iRoad provides on-site installation and operator training for major equipment; remote video guidance is available for portable instruments.
