T3400 Series A2L Refrigerant Leak Detection Sensor
Amphenol high-performance A2L refrigerant leak detection sensors utilize thermal conductivity technology
The Amphenol Advanced Sensors Telaire T3400 series A2L refrigerant leak detection sensors offer a dependable solution for identifying refrigerant gas leaks. By employing a microthermal conductivity detector (TCD) sensing element, these sensors analyze changes in the thermal conductivity of the ambient gas mixture to detect variations in refrigerant concentration. This technology provides superior long-term reliability and resilience, particularly in challenging operational environments, outperforming alternative detection methods. In the event of a refrigerant leak, the T3400 sensors promptly identify the shift in gas composition, enabling timely intervention and mitigation.
- Proven thermal conductivity sensing technology
- Fully calibrated with humidity and pressure compensation
- Supports R32 and R454B refrigerants (others available upon request)
- ETL recognized to UL60335-2-40 standards (R454B); UL recognition pending for R32/R454B
- IP54-rated package with integrated harness and connector
- Long-term reliability: >15-year lifetime
- RS485 MODBUS communication
- Low power consumption: 3.3 VDC to 5 VDC supply, 22 mA max current
- Wide operating range: 0% to 100% LFL
- High accuracy: ±2.5% LFL at 15°C to 25°C, 30% to 70% RH
- Evaluation kits available for rapid prototyping and testing
- Custom design capabilities, including:
- Packaging and interconnects
- Communication protocols
- Refrigerant blends and alarm setpoints
- Onboard relays and condensation mitigation
- Supply voltage options
- Compact size, ideal for space-constrained applications
- Fast response time: <15 seconds
- Accurate, stable, and repeatable measurement capability
- OEM HVAC/R systems, both commercial and residential
- Commercial refrigeration systems
- Heat pumps
- Datacenter cooling equipment
- Industrial refrigeration systems
- Chillers
T3400 Series A2L Refrigerant Leak Detection Sensor
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
![]() | ![]() | T3400 | T3400 A2L REFRIGERANT SENSOR, R- | 4 - Immediate | $40.00 | View Details |
![]() | ![]() | T3400-EVAL | EVAL BOARD FOR T3400 | 1 - Immediate | $62.75 | View Details |
![]() | ![]() | T3401 | T3401 A2L REFRIGERANT SENSOR, R- | 70 - Immediate | $40.00 | View Details |
![]() | ![]() | T3401-EVAL | EVAL BOARD FOR T3401 | 1 - Immediate | $62.75 | View Details |




