🚦 TTI Freeze Alarm – Below 32°F
The TTI Electronic Freeze Alarmis a compact, battery-powered time-temperature indicator designed to detect freezing conditions during storage, transportation, and distribution of temperature-sensitive products.
The device monitors exposure to temperatures below 32°F (0°C)and provides two LED alarm stages. The first LED indicates 30 minutes of freezing exposure, while the second indicates 60 minutes, helping personnel identify the duration of potentially damaging cold conditions.
Its self-adhesive backing allows easy attachment to packages, containers, and equipment. The internal thermistor and non-replaceable battery provide standalone monitoring without external power or additional wiring.
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Ideal Applications
❄️ Freeze-sensitive product shipments
💊 Pharmaceutical cold-chain monitoring
🚚 Refrigerated transportation
🧪 Laboratory samples and diagnostic materials
🏥 Medical supply storage and distribution
📦 Temperature-sensitive packaging
| Type of Sensor: | Thermistor |
| Temperature Sensing Range: | -4º F ~ 140ºF / -20º C ~ 60º C |
| Operating Temperature Range: | -4º F ~ 140ºF / -20º C ~ 60º C |
| Temperature Accuracy: | +/- 1°F (+/- 0.5°C) typical |
| Temperature Scale: | °F and °C |
| Dimensions: | 22.6mm x 42.3mm x 5.6mm ; 6g |
| Calibration Available: | Certificate of Conformance ( $ Extra ) |
| Power: | Non-replaceable Battery |
| Battery Life: | 1 Year |
| Battery Backup: | No |
| IP Rating: | IP54 Dust / Splash Proof |
| Cumulative Indication Time: | User Programmable |
| Special Notes: | Attach to a product using the self-adhesive backing |
| Adhesive: | Yes |
| Number of Events: | Custom |
| Shelf Life: | 2 Year |
- (10) Pc. Minimum
- TTI Alarm / Singe use
- Flashing Lights Below 0°C
- Attach to a product using the self-adhesive backing.
- Expert Technical Support
Compliance & Risk Mitigation
🚦 Dual LEDs identify freeze exposure stages
❄️ Detects temperatures below freezing
⏱ Tracks 30- and 60-minute alarm thresholds
📋 Supports receiving and shipment inspections
🔋 Verify battery life and shelf life before use
🛡️ IP54 housing resists dust and splashes
📑 Calibration certificate available separately
This single-use electronic indicator provides LED notification of freezing exposure based on preset time-temperature thresholds. It does not prevent freezing or provide a downloadable temperature history. Confirm alarm settings, activation procedures, and suitability for the monitored product before use.
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How to use
- To activate, press and hold the button for >3.5 seconds until the green ‘Power on’ LED flashes 3 times.
- Once the indicator has been activated, the "Power On" LED will flash every 8 seconds.
- The device starts monitoring temperature after the 30-minute start delay.
- If no temperature breach has occurred, the green ‘Power on’ LED will flash.
- When the temperature drops below 0°C for more than 30 minutes single event the red ’30 minute’ LED will flash.
- When the temperature drops below 0°C for more than 60 minutes single event, the red ’60 minute’ LED will flash.

