Built to Outperform OEM. Made in the USA by RTE.
Whether you’re tackling preventative maintenance or troubleshooting a system fault, having reliable temperature sensors on hand keeps your reefer units running strong. At RTE, we manufacture high-quality sensors that meet and often exceed OEM specs.
Choose from:
- Graded sensor kits for calibrated airflow precision
- Ungraded sensors for dependable coil temperature and defrost control
- Harness plugs or without
- Thermo King or Carrier compatible
Graded vs Ungraded Temperature Sensors | What’s the Difference?
| Feature | Graded Sensor | Ungraded Sensor |
|---|---|---|
| Calibration | Yes, matched to specific ranges | No, general-purpose |
| Measurement Precision | Higher, often used for differential | Lower, used for threshold control |
| Typical Application | Airflow monitoring, temperature delta | Coil temperature, defrost control |
| Cost | Slightly higher | More economical |
| Feature | Graded Sensor | Ungraded Sensor |
|---|---|---|
| Calibration | Yes, matched to specific ranges | No, general-purpose |
| Measurement Precision | Higher, often used for differential | Lower, used for threshold control |
| Typical Application | Airflow monitoring, temperature delta | Coil temperature, defrost control |
| Cost | Slightly higher | More economical |
Explore our catalog of Thermo King and Carrier-compatible reefer temperature sensors.
Need help or have a question on pricing? Click this button.
| Product Photo | Product Description | RTE Part Numbers | Manufacturer | Our Price |
|---|---|---|---|---|
 | 3K Sensor Retro Fit 18" | 1H440300 | Thermo King | $40 |
 | 3K Sensor Retro Fit 24" | 1H440800 | Thermo King | $40 |
 | Sensor, Graded with Harness | 1H441502 | Thermo King 40-974, 40-784, 40-871, 41-741, 41-2649, 41-3852, 41-4013, 41-4022, 41-5801, 41-7084, 41-8547, 44-9351 | $43 |
 | Sensor, Ungraded with Harness | 1H441602 | Thermo King 40-975, 40-785, 40-872, 41-742, 41-2858, 41-3853, 41-4012, 41-4021, 41-5802, 41-7085, 41-8548, 44-9335 | $33 |
 | Sensor Kit Graded | 1H441802 | Thermo King 40-974, 40-784, 40-871, 41-741, 41-2649, 41-3852, 41-4013, 41-4022, 41-5801, 41-7084, 41-8547, 44-9351 | $41 |
 | Sensor Kit Ungraded | 1H441902 | Thermo King 40-975, 40-785, 40-872, 41-742, 41-2858, 41-3853, 41-4012, 41-4021, 41-5802, 41-7085, 41-8548, 44-9335 | $29 |
 | Replacement RRS & RAS Dual Temp Sensor | 1H441300 | Carrier 12-00500-01SV | $39 |
 | Replacement RAS Sensor with Harness (16") | 1H442901 | Carrier 22-01940-00 | $32 |
 | Replacement RAS Sensor Splice Kit | 1H442201 | Carrier 12-00523-01 | $21 |
 | Replacement SAS Sensor Splice Kit | 1H442101 | Carrier 12-01072-12 | $24 |
 | Replacement SAS Sensor with Harness (46") | 1H443001 | Carrier 22-01636-00 | $55 |
 | Replacement RAS & SAS Sensor Kit (Two Splice Sensors in Box) | 1H443300 | Carrier 76-0049300 | $50 |