TR-76Ui Air Temperature, Humidity & CO₂ Recorder,T&D_specification/price/image

Product Detail
Company Profile

Purpose：

The TR-76Ui is an ultra-compact logger that simultaneously measures and records air temperature, relative humidity and carbon-dioxide concentration.
A USB port is provided as standard, and a new infrared (IR) port has been added for cable-free data download to the TR-57DCi hand-held data collector.
A CO₂ alarm output can drive external buzzers or lamps for on-the-spot ventilation alerts in classrooms and office buildings.

Features：

One unit records CO₂, T & RH
Real-time simultaneous monitoring
USB connection – up to 128 loggers on one PC
High-accuracy, wide-range T/RH sensor (same as “S-type”) – user replaceable
All three parameters displayed together in the software chart
Memory capacity: 8 000 data sets (one set = 3 channels)
Built-in barometric-pressure compensation for CO₂
Push-button controls on the logger
IR data transfer (with TR-57DCi)
Alarm output terminal

Applications

Indoor-air quality control in schools & offices
HVAC energy-saving control
Photosynthesis studies in plant growth
Ventilation-rate evaluation

Technical Specifications

External T/RH Sensor

Air Temperature
Sensor type	Thermistor
Units	°C / °F
Range	0 – +55 °C
Accuracy	±0.5 °C
Resolution	0.1 °C
Response (90 %)	Approx. 7 min
Relative Humidity
Sensor type	Polymer resistance
Units	%RH
Range	10 – 95 %RH
Accuracy	±5 %RH (at 25 °C, 50 %RH)
Resolution	1 %RH
Response (90 %)	Approx. 7 min
Internal CO₂ Sensor
Sensor type	NDIR (non-dispersive infrared)
Units	ppm
Range	0 – 9 999 ppm
Accuracy	±(50 ppm + 5 % of reading) ≤ 5 000 ppm
Resolution	1 ppm (min.)
Response (90 %)	Approx. 1 min
Main Unit
Memory	8 000 data sets (3 ch each)
Logging interval	15 steps: 1 s, 2 s, 5 s, 10 s, 15 s, 20 s, 30 s, 1 min, 2 min, 5 min, 10 min, 15 min, 20 min, 30 min, 60 min
Logging mode	Endless (overwrite) / One-time (stop when full)
LCD	Real-time values (CO₂, T, RH cycled), battery icon
Interfaces	USB (std.), RS-232 (opt.), IR (requires TR-57DCi)
Transfer time	USB ≈ 45 s full memory / IR ≈ 60–80 s
Alarm output	Open-drain MOS: OFF ≤30 V, ON ≤0.1 A, RON ≈15 Ω
Power	AC adaptor (AD-06A1 or AD-06C1) or 4 × AA alkaline (LR6)
Battery life	Approx. 2 days (alkaline only, no adaptor)
Dimensions	96 L × 66 W × 46 H mm (excl. sensor & protrusions)
Weight	214 g (with batteries, excl. sensor)
Operating environment	0 – +45 °C, <90 %RH (no condensation)
Supplied accessories	4 × AA batteries, AC adaptor, USB cable (US-15C), T/RH sensor (THA-3001), software, manual

THA-3001 T/RH Probe

Air Temperature
Measuring range	0 – +55 °C
Resolution	0.1 °C
Accuracy	±0.5 °C
Response time (90 %)	≈ 7 min
Relative Humidity
Measuring range	10 – 95 %RH
Resolution	0.1 %RH
Accuracy	±5 %RH (@ 25 °C, 50 %RH)
Response time (90 %)	≈ 7 min
Hysteresis	±1 %RH (30 – 90 %RH)
Others
Operating environment	0 – +55 °C, ≤ 95 %RH (non-condensing) With TR-76Ui: 0 – +45 °C, ≤ 90 %RH
Dimensions	51.5 L × 18 W × 10 H mm
Materials	Polypropylene resin
Extension cable	TR-1C30 (3 m) or TR-5C10 (1 m) – max. 9 m total

THA-3151 T/RH Probe

Air Temperature
Measuring range	0 – +55 °C
Resolution	0.1 °C
Accuracy	±0.5 °C
Response time (90 %)	≈ 7 min
Relative Humidity
Measuring range	10 – 95 %RH
Resolution	1 %RH
Accuracy	±5 %RH (@ 25 °C, 50 %RH)
Response time (90 %)	≈ 7 min
Hysteresis	±1 %RH (30 – 90 %RH)
others
Operating environment	0 – +55 °C, ≤ 95 %RH (non-condensing); when used with TR-76Ui: 0 – +45 °C, ≤ 90 %RH
Dimensions	51.5 L × 18 W × 10 H mm
Cable length	1.5 m
Materials	Polypropylene resin, PVC-coated cable
Extension cable	TR-1C30 (3 m) or TR-5C10 (1 m) – max. 9 m total

Note: sensors and accessories are optional, contact us for more details.