Product Overview
The TW21 digital temperature and humidity recorder features two digital sensors: one internal and one external. It features a clear 3.5-inch LCD display with a switchable backlight. Features: Real-time display of temperature and humidity data, along with the date and time in a 24-hour format. It supports external temperature and humidity devices (default 3 meters), with an extendable maximum distance of 20 meters. Users can flexibly set high and low temperature alarm thresholds and freely switch the display unit between Celsius and Fahrenheit (°C/°F). The recorder boasts a robust data storage capacity, storing up to 260,000 data sets. Historical data can be conveniently viewed directly on the device or easily exported as a document for subsequent analysis and processing. The product is compatible with host computer software.
Product Introduction
1. Model: TW21
2. Power Supply: Dual Power Supply
• Powered by three AAA/1.5V batteries. (Batteries not included)
• Powered by AAA batteries for approximately 6-12 months
• Supports direct DC5V/1A power via USB Type-C port.
3. Measurement Range:
• Internal: Temperature measurement range: -25°C/-13°F to 70°C/158°F, humidity range: 0 to 99% RH
• External: Temperature measurement range: -40°C/-40°F to 125°C/199°F, humidity range: 0 to 99% RH
• Response Speed: Data updated every 5 seconds.
4. Measurement Accuracy and Resolution:
• Temperature measurement accuracy: ±0.3°C/0.5°F, resolution: 0.1°C/0.2°F
• Humidity measurement accuracy: ±2.0% RH, resolution: 0.1 RH.
5. Housing Material and Dimensions:
• Housing made of durable ABS. • Product Dimensions: 108x75x25mm (L/W/H).
• Display Size: 93mm diagonal, 82x46mm (L/W/H).
Applications
Widely suitable for wineries, cellar temperature and humidity monitoring, temperature control equipment assistance, home temperature and humidity monitoring, greenhouse cultivation monitoring, wine cabinet storage, storage room use, etc.
Usage
1. Desktop Placement: The back of the product features a practical stand for easy desktop support.
2. Wall Mounting: The back of the product features a hook hole for securing to a wall with a nail or hook.
Product Instructions
1. Power On: Simply install three AAA batteries or plug in a DC5V/1A USB Type-C cable. The device will automatically power on and operate normally.
2. Button Functions:
Press and hold the left button to switch between Celsius and Fahrenheit. Short press to switch between internal and external temperature and humidity display.
Long press the middle button to enter the settings menu, short press to turn on the backlight.
Long press the right button to save data once, short press to switch between internal and external temperature and humidity display.
Packaging Contents
Host 1 unit
Data cable 1 unit
Instruction manual 1 unit
External sensor (3 meters) 1 unit
