WS-T21PRO Dual Temperature External Data Logger (CAT#: STEM-BC-2736-ZJF)

An external dual-channel temperature data logger covering -40°C to 100°C with 2m sensor length. The device stores up to 64,800 records and supports 1 to 60-minute recording intervals. It features Mini USB interface for data transfer, real-time clock, max/min value querying, and over-limit LCD and buzzer alarms. Powered by high-energy lithium battery with 1-2 year lifespan, it offers IP65 waterproof housing and ABS impact-resistant construction. The device supports °C/℉ switching, multi-process recording, and probe interchangeability. Calibration certificates are included with optional CNAS calibration. Suitable for food, pharmaceutical, cold chain, and research applications.

Temperature Range: -40°C~100°C
Sensor Type: Temperature External
Sensor Quantity: Dual Channel
Sensor Length: 2m
Display Resolution: 0.1°C/0.1℉
Storage Capacity: 64,800 Records
Communication: Mini USB
Power Supply: Lithium Battery
Operating Environment: -20°C~70°C
Dimensions: 93mm×62mm×22mm
Weight: 108g

No Software Required
True USB Communication
Probe Interchangeable
Multi-Process Recording
°C/℉ Switchable
IP65 Waterproof Housing
Low Power Design
LCD Display

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