RS Components
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Tinytag TGP-4500 Data Logger for Humidity, Temperature Measurement

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1 +$430.62

Gemini Data Logger

The Gemini Tinytag Plus 2-channel self-contained temperature and relative humidity data logger. This unit features a coated RH sensor that has good resistance to moisture and condensation, ensuring measurement reliability. It has delayed and triggered start with 3 stop options: stop when full, wrap-around and stop after n readings.

Features and Benefits

High accuracy
High reading resolution
Fast data offload
Robust and waterproof case
Low battery monitor
User-replaceable battery
Number of Readings Per Channel is 32000
Operating temperature ranges between -40°C and 85°C with 0 to 100% RH measurement range


Environmental monitoring
Glasshouse and polytunnel agriculture
Food processing and storage
Pharmaceutical manufacture
Logistics monitoring
Conservation Projects


IP68 rated
CE certified

Measurement ParametersHumidity, Temperature
Sensor TypeCapacitive, NTC
Number of Input Channels2
Interface TypeSerial, USB
Maximum Temperature Measurement+85 °C
Power SourceBattery
Best Temperature Measurement Accuracy±0.6 °C
IP RatingIP68
Minimum Operating Temperature-40°C
Maximum Operating Temperature+85°C
Battery Life1 yr
Battery Type1/2 AA
Number of Readings Per Channel32000
Temperature Measurement Resolution0.01°C
Maximum Humidity Measurement100%RH
Humidity Measurement Resolution0.3%RH
Dimensions80 x 57 x 34mm
Best Humidity Measurement Accuracy±3 %RH