TES-1330A digital light meter with cosine-corrected photodiode sensor for illuminance tests in tunnels, roads and buildings.
Overview
The TES-1330A is a hand-held digital light meter. Its detector is a silicon photodiode with a spectral response close to the CIE photopic curve with cosine angular correction. It consists of a hand-held display unit and a separate light probe connected by a 1.5 m cable, with a 3.5-digit LCD, auto/manual range, data hold, over-range indication and 0.01 Lux resolution. It is used in office lighting assessment, industrial illumination measurement, horticultural lighting research and photometric testing laboratories.
Applications
• Occupational health and safety monitoring
• Indoor air quality and environmental assessment
• HVAC system commissioning and maintenance
• Industrial hygiene and safety inspection 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 |
| Display | 3½-digit LCD |
| Range | 20 / 200 / 2000 / 20000 Lux |
| Resolution | 0.01 Lux |
| Accuracy | ±3%rdg ±0.5%f.s. (<10000 Lux) |
| Accuracy | ±4%rdg ±10dgt (>10000 Lux) |
| Spectral | CIE photopic curve |
| Spectral accuracy | f₁′ ≤ 6% |
| Cosine response | f₂′ ≤ 2% |
| Repeatability | ±2% |
| Temp. coefficient | ±0.1%/°C |
| Sampling | 2 readings/s |
| Detector | photodiode with filter |
| Probe lead length | 150cm |
| Probe size | 100×60×27mm |
| Main unit size | 135×72×33mm |
| Weight | approx. 250g |
| Power | 9V battery, approx. 200h |
| Environment | 0–40°C, ≤70%RH |
| Functions | data hold, over-range, range switch |
Standards
IEC 61672, ISO 7743, GB/T 3768
Standard Delivery
• Main instrument unit
• Power cable / charger
• Operation manual
• Carrying case
• Calibration certificate
FAQ
Q1: What standards does the TES-1330A Digital Light Meter comply with?
A1: The TES-1330A Digital Light 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-1330A Digital Light 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-1330A is a hand-held digital light meter. Its detector is a silicon photodiode with a spectral response close to the CIE photopic curve with cosine angular correction. It consists of a hand-held display unit and a separate light probe connected by a 1.5 m cable, with a 3.5-digit LCD, auto/manual range, data hold, over-range indication and 0.01 Lux resolution. It is used in office lighting assessment, industrial illumination measurement, horticultural lighting research and photometric testing laboratories.
Applications
• Occupational health and safety monitoring
• Indoor air quality and environmental assessment
• HVAC system commissioning and maintenance
• Industrial hygiene and safety inspection 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 |
| Display | 3½-digit LCD |
| Range | 20 / 200 / 2000 / 20000 Lux |
| Resolution | 0.01 Lux |
| Accuracy | ±3%rdg ±0.5%f.s. (<10000 Lux) |
| Accuracy | ±4%rdg ±10dgt (>10000 Lux) |
| Spectral | CIE photopic curve |
| Spectral accuracy | f₁′ ≤ 6% |
| Cosine response | f₂′ ≤ 2% |
| Repeatability | ±2% |
| Temp. coefficient | ±0.1%/°C |
| Sampling | 2 readings/s |
| Detector | photodiode with filter |
| Probe lead length | 150cm |
| Probe size | 100×60×27mm |
| Main unit size | 135×72×33mm |
| Weight | approx. 250g |
| Power | 9V battery, approx. 200h |
| Environment | 0–40°C, ≤70%RH |
| Functions | data hold, over-range, range switch |
Standards
IEC 61672, ISO 7743, GB/T 3768
Standard Delivery
• Main instrument unit
• Power cable / charger
• Operation manual
• Carrying case
• Calibration certificate
FAQ
Q1: What standards does the TES-1330A Digital Light Meter comply with?
A1: The TES-1330A Digital Light 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-1330A Digital Light 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.
