Resistance Temperature Sensors
Watlow’s platinum resistance elements are specially designed to ensure precise and repeatable temperature measurement. Watlow RTDs and thermistors are accurate, sensitive, interchangeable, standardized and repeatable.
| Product | Description | Temperature | Accuracy | ||
|---|---|---|---|---|---|
| °F | °C | ||||
 | RTDs | Accurate, repeatable and interchangeable over a wide operating range. | -328 to 1200 | -200 to 650 | DIN Class A ± 0.06% at 32°F (0°C) DIN Class B ± 0.12% at 32°F (0°C) |
 | Thermistors | Highly sensitive to small changes in temperature, fairly accurate over a limited temperature range. | -75 to 500 | -60 to 260 | ± 1% at 77°F (25°C) to ±15% at 32°F (0°C) |
 | ENVIROSEAL™ HD Sensor | Suited for heavy-duty applications including those in harsh environments. | -40 to 392 | -40 to 200 | Same as RTD and thermistor accuracies above |
 | Surface Temperature Sensors | Can be mounted on flat surfaces and is ideal for surface temperature monitoring applications. | -58 to 500 | -50 to 260 | n/a |