Get SPRT-Like Perfomance for less than the cost of a Fluke PRT
Isotech's Model 935 |
Fluke's Model 5615 |
|
| Temperature range |
–200 °C to 670 °C | –200 °C to 420 °C |
| Nominal resistance | 100Ω ± 0.05 Ω | 100 Ω ± 0.10 Ω (at 0°C) |
| Drift | ±0.005°C/year at 0°C | ±0.007 °C/100 hours at 0.010 °C |
| Short Term Repeatability | ±0.005°C | ±0.009°C |
| Sensor Length | 6mm - 25mm | 28mm |
| Sheath Diameter | 3mm - 6mm | 4.76mm - 6.35mm |
| Sheath Length | 165mm - 480mm | 152mm - 305mm |
|
Cost |
Starts at $526 |
Starts at $1,220.00 |
We can put the matching connector (including smart connectors) on the 935 and provide a better PRT, faster, all for less than the cost of a 5615.

| Temperature | Isotech's Model 935 | Fluke's Model 5615 |
| –196 °C | 0.007 °C | 0.024 °C |
| –38 °C | 0.006 °C | 0.011 °C |
| 0 °C | 0.005 °C | 0.010 °C |
| 200 °C | 0.006 °C | 0.018 °C |
| 420 °C | 0.006 °C | 0.029 °C |
| 660 °C | 0.012 °C | ¯\_(ツ)_/¯ |
Best Measurement Uncertainties (k=2, 95% confidence)
Skip the nonsense and Go straight to our website to buy a 935 unit.

By selling Thermometry Bridges, Standard Platinum Resistance Thermometers, fixed-point cells, portable dry block calibrators, liquid baths, furnaces, and infrared calibrators it's no surprise that 80% of the world relies upon Isotech for their National Standards. It works well for them and we are excited to make it work well for you.
We also offer ISO/IEC 17025:2017 Accredited Calibration and NIST Traceable Calibration services from -196 to 1200°C (2200°F) for a variety of instruments such as SPRTs, RTDs, Thermistors, Thermocouples, Readouts, Liquid-in-Glass Thermometers, Dry Block Calibrators, and Electronic TC & RTD Simulators. We can calibrate hardware from almost any manufacturer.
