Mini LCD Digital Thermometer with Probe
🌡️ Mini LCD Digital Thermometer with Probe
Compact Temperature Meter • Waterproof Probe • Easy Installation
The Mini LCD Digital Thermometer with Probe is a small and easy-to-use temperature measuring device designed for monitoring liquids, air, and surfaces. It features a clear LCD display and a remote probe sensor connected by a cable, allowing accurate temperature measurement in hard-to-reach places.
This thermometer is widely used in aquariums, refrigerators, incubators, terrariums, and DIY electronics projects where continuous temperature monitoring is required.
📊 Infographic Overview
🔹 Basic Specifications
| Feature | Details |
|---|---|
| 🌡 Measurement Range | -50°C to +110°C |
| 📟 Display Type | LCD Digital Display |
| 🔌 Power Supply | 1.5V LR44 Button Cell |
| 📏 Sensor Type | NTC Temperature Probe |
| 📐 Probe Cable Length | ~1 Meter |
| 🎯 Accuracy | ±1°C |
🧩 Main Components
| Component | Description |
|---|---|
| 📟 LCD Display | Shows the measured temperature |
| 🌡 NTC Temperature Probe | Detects temperature changes |
| 🔋 Button Cell Battery | Powers the thermometer |
| 🔌 Probe Cable | Allows remote sensing |
🔌 Device Structure
Mini LCD Thermometer
┌───────────────┐
│ LCD Display │
│ Temperature │
│ Readout │
└──────┬────────┘
│
Sensor Cable
│
▼
Temperature Probe
⚙️ Working Principle
The thermometer uses an NTC thermistor to measure temperature.
Step-by-Step Operation
1️⃣ The probe contains an NTC thermistor.
2️⃣ When temperature changes, the thermistor resistance changes.
3️⃣ Internal circuitry converts resistance to temperature values.
4️⃣ The measured temperature is displayed on the LCD screen.
📊 Measurement Example
| Environment | Temperature Range |
|---|---|
| Aquarium Water | 20°C – 30°C |
| Refrigerator | 0°C – 10°C |
| Room Temperature | 18°C – 30°C |
| Incubator | 30°C – 40°C |
🧰 Common Applications
🐠 Aquarium temperature monitoring
🧊 Refrigerator and freezer monitoring
🐍 Terrariums and reptile habitats
🌱 Greenhouse temperature control
🧪 Laboratory experiments
⚙ DIY electronics and cooling systems
💡 Advantages
✅ Compact and lightweight design
✅ Easy to install and use
✅ Clear digital LCD display
✅ Waterproof probe sensor
✅ Low power consumption
⚠️ Limitations
❌ Measures temperature only (no humidity)
❌ Not suitable for extremely high temperatures
❌ Battery replacement required after long use
🔧 Example DIY Project
🐠 Aquarium Temperature Monitor
Components
Mini LCD Digital Thermometer with Probe
Aquarium tank
Mounting tape or holder
Working
✔ The probe is placed inside the aquarium water
✔ The LCD module stays outside the tank
✔ The display continuously shows water temperature
