T&D TR‑74Ui‑S USB Illuminance, UV & Temperature Humidity Logger

USB illuminance and UV data logger designed for precise light, temperature and humidity monitoring.

The TR‑74Ui‑S is a four‑channel logger that measures illuminance, UV intensity, temperature and humidity using high‑precision sensors. USB connectivity allows simple setup, data download and live monitoring via Windows software, supporting environments where strict control of light exposure and climate conditions is required.

Specifications

• Model: TR‑74Ui‑S (TR‑7Ui Series)
• Measurement channels: Illuminance (1ch), UV intensity (1ch), temperature (1ch), humidity (1ch)

Temperature and Humidity (High‑Precision Type)

• Sensor: SHA‑3151
• Temperature range: -25 to 70 °C
• Humidity range: 0 to 99 %RH
• Temperature accuracy:
  • ±0.3 °C (10 to 40 °C)
  • ±0.5 °C (other temperatures)
• Humidity accuracy: ±2.5 %RH (15 to 35 °C, 30 to 80 %RH)
• Resolution: 0.1 °C, 0.1 %RH
• Response time (90%): Approx. 7 minutes

Illuminance and UV

• Sensor: ISA‑3151
• Illuminance range: 0 to 130 klx
• UV intensity range: 0 to 30 mW/cm²
• Units: lx, klx; mW/cm²
• Cumulative measurement units:
  • Illuminance: lxh, klxh, Mlxh
  • UV: mW/cm²·h, W/cm²·h
• Accuracy:
  • Illuminance (10 lx to 100 klx): ±5 % at 25 °C, 50 %RH
  • UV (0.1 to 30 mW/cm²): ±5 % at 25 °C, 50 %RH
• Spectral response:
  • Illuminance: Approx. CIE standard response V(λ)
  • UV: 260 to 400 nm (UVA / UVB)
• Resolution:
  • Illuminance: Minimum 0.01 lx
  • UV: Minimum 0.001 mW/cm²
• Response time (90%):
  • 3 sec (1‑sec recording interval)
  • 6 sec (other intervals)

Logging and System

• Logging capacity: 8,000 data sets (all channels per set)
• Recording intervals: 15 options from 1 sec to 60 min
• Recording modes: Endless or one‑time
• Display: LCD showing measurements, cumulative values, status, mode and battery warning
• Communication interfaces: USB 2.0 (Mini‑B), serial
• Power: 1 × AA alkaline battery
• Battery life: Approx. 6 months
• Operating environment: -10 to 60 °C; ≤90 %RH (no condensation)
• Dimensions: 55 × 78 × 18 mm
• Weight: Approx. 40 g
• Included items: AA battery, USB Mini‑B cable, illuminance‑UV sensor ISA‑3151, temperature‑humidity sensor THA‑3151 or SHA‑3151, manual set

Common Applications

• Museum and gallery exhibit protection
• Library and archive light exposure monitoring
• Environmental monitoring with strict climate control
• UV and illuminance assessment for preservation
• Long‑term data logging for controlled environments

The TR‑74Ui‑S data logger combines USB illuminance and UV data logger functionality with high precision temperature and humidity logger performance in one compact unit.

For sales and support of the TR‑74Ui‑S, USB illuminance and UV data logger, high precision temperature and humidity logger, and TR‑74Ui‑S data logger, contact CMC Technologies on ph 02 9669 4000 or email sales@cmctechnologies.com.au.