The Luvinka LV-3 Digital Refrigerator Thermometer with Alarm is a compact and reliable solution for accurate temperature monitoring in refrigerators, freezers, and cold-storage environments. Featuring dual temperature measurement with an external wired probe, it provides continuous monitoring of both ambient and product temperatures. Its programmable audible alarm, Min/Max memory, and clear LCD display make it ideal for healthcare, food storage, laboratories, and other applications where dependable cold-chain monitoring is essential.
Features
- Dual temperature monitoring: Simultaneously measures internal ambient temperature (IN) and external probe temperature (OUT) on a single display.
- Independent dual alarm system: Separate high and low temperature limits can be set for both internal and external sensors.
- Loud audible alarm: Instantly alerts users when temperature values exceed preset limits to prevent product loss.
- Wide application support: Ideal for medical storage, food safety, laboratories, industrial cabinets, and home freezers.
- Min/Max memory function: Records the highest and lowest temperatures since the last reset for reliable historical tracking.
- Large LCD display: Clear, easy-to-read screen for quick temperature checks at a glance.
- Flexible mounting options: Built-in magnet allows easy attachment to metal surfaces without tools.
- External probe with holder: 1.5 m wired probe includes a silicone holder for stable placement inside cabinets or freezers.
- °C / °F unit selection: One-touch switching between Celsius and Fahrenheit.
- User-friendly operation: Simple button layout enables fast setup and intuitive daily use.
Technical Specifications
| External (Probe) Temperature Range | -50°C ~ +70°C (-58°F ~ +158°F) |
| Internal (Room) Temperature Range | -20°C ~ +70°C (-4°F ~ +158°F) |
| Temperature Accuracy | ±1°C |
| Temperature Resolution | 0.1°C |
| Display Type | LCD Display (20 × 45 mm) |
| Cable Length | 1.5 meters |
| Alarm Function | Yes (Audible, High/Low Limits, Separate IN/OUT) |
| MAX / MIN Memory | Yes (Stored) |
| Unit Selection | °C / °F |
| Mounting Options | Magnetic back, adhesive probe holder |
| Weight | 62 g |
| Power Supply | 1 × 1.5V AAA battery |
Areas of Use
- Healthcare and medical storage: Used in hospital pharmacies, clinics, vaccine refrigerators, blood banks, and laboratories to ensure medicines and vaccines are stored within required cold-chain limits.
- Food service and production: Ideal for bakeries, restaurants, supermarkets, butcher shops, and food processing facilities, helping maintain product quality in freezers, cold rooms, and display cabinets.
- Industrial environments: Suitable for factory storage units, server rooms for ambient temperature monitoring, and specialized chemical storage areas.
- Home use: Perfect for monitoring household freezers, pantries, or storage areas; the Min/Max memory function is especially useful for checking temperature stability after extended power outages.








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