| A Fluke Calibration precision digital thermometer readout is specifically designed to measure temperature sensors for calibration. The purpose of the readout is to measure a temperature sensor’s resistance or voltage and display a temperature. However, not every instrument that simply measures resistance or voltage is well suited for work with PRTs, RTDs, thermocouples or thermistors. Because thermometer readouts are designed for calibration, they offer many advantages, especially convenience and accuracy. |  |
| Intrinsically safe thermometers | |||
| 1551A Ex | 100 Ω thin-film RTD | –50 °C to 160 °C (–58 °F to 320 °F) | Accuracy of ± 0.05 °C (± 0.09 °F) over full range. Intrinsically safe (ATEX and IECEx compliant. Two models to choose from (-50 °C to 160 °C or -80 °C to 300 °C) |
| 1552A Ex | 100 Ω wire-wound PRT | –80 °C to 300 °C (–112 °F to 572 °F) | |
| Super-Thermometers | |||
| 1594A | SPRTs, PRTs, Thermistors | ± 0.00006 °C | Ratio accuracy of 0.8 ppm; temperature-controlled internal reference resistors; six input channels. |
| 1595A | SPRTs, PRTs, Thermistors | ± 0.000015 °C | Ratio accuracy of 0.2 ppm; Ratio Self-Calibration; automated zero-power measurements. |
| Fluke Precision Digital Thermometer Readouts | |||
Model | Probe Types | Accuracy at 0 °C | Features |
| Most Popular | |||
| 1502A | PRTs | ± 0.006 °C | Resolution of 0.001 °C and accuracy to match; uses ITS-90, IPTS-68, CVD, or DIN (IEC 751) conversions. |
| 1504 | Thermistors | ± 0.002 °C | Reads thermistors from 0 to 500 KW; uses Steinhart-Hart and CVD. |
| Handheld | |||
| 1523 | PRTs, Thermistors, Thermocoouples | ± 0.002 °C | Battery-powered, handheld reference thermometer; INFO-CON connector reads coefficients without programming; saves 25 readings on demand; graphs trends |
| 1524 | PRTs, Thermistors, Thermocoouples | ± 0.002 °C | Handheld reference thermometer same as 1523 but with inputs for two thermometers; logs up to 15,000 readings and stores 25 more on demand. |
| Battery Powered | |||
| 1523 | PRTs, Thermistors, Thermocoouples | ± 0.002 °C | Battery-powered, handheld thermometer; INFO-CON connector reads coefficients without programming; saves 25 readings on demand; graphs trends |
| 1524 | PRTs, Thermistors, Thermocoouples | ± 0.002 °C | Same as 1523 but with inputs for two thermometers; logs up to 15,000 readings and stores 25 more on demand. |
| 1529 | PRTs, Thermistors, Thermocouples | ± 0.006 °C (PRT) | Four channels can all be measured simultaneously; battery-powered; logs up to 8,000 readings; flexible display. |
| High Accuracy | |||
| 1594A | SPRTs, PRTs, Thermistors | ± 0.00006 °C | Ratio accuracy of 0.8 ppm; temperature-controlled internal reference resistors; six input channels. |
| 1595A | SPRTs, PRTs, Thermistors | ± 0.000015 °C | Ratio accuracy of 0.2 ppm; Ratio Self-Calibration; automated zero-power measurements. |
| Multi-Channel | |||
| 1586A Super-DAQ | SPRTs, PRTs, Thermistors, Thermocouples | PRTs: ± 0.005 °C (using the external DAQ-STAQ Multiplexer) Thermistors: ± 0.002 °C Thermocouples: ± 0.5 °C (using the High-Capacity Module and internal CJC) | Up to 40 input channels. Scan speeds as fast as 10 channels per second. |
| 1560 | Accepts any combination of the modules below; all are easily added to and removed from the 1560 base. | ||
| 2560 | SPRTs, PRTs | ± 0.005 °C | 2 channels of 25W or 100W PRTs. |
| 2561 | HTPRTs | ± 0.013 °C | 2 channels to 1200 °C. |
| 2562 | PRTs | ± 0.01 °C | 8 channels of 2-, 3-, or 4-wire RTDs. |
| 2563 | Thermistors | ± 0.0013 °C | 2 channels of resolution to 0.0001 °C. |
| 2564 | Thermistors | ± 0.0025 °C | 8 channels for data acquisition. |
| 2565 | Thermocouples | ± 0.05 °C | Reads most TC types with 0.0001 mV resolution. |
| 2566 | Thermocouples | ± 0.1 °C | Reads any combination up to 12 channels of virtually any type of TC. |
| 2567 | 1000 Ω PRTs | ± 0.006 °C | 2 channels of high-resistance PRTs. |
| 2568 | 1000 Ω PRTs | ± 0.01 °C | 8 channels of high-resistance PRTs. |
| 1529 | PRTs, Thermistors, Thermocouples | ± 0.006 °C (PRT) | Four channels can all be measured simultaneously; battery-powered; logs up to 8,000 readings; flexible display. |
| 1594A | SPRTs, PRTs, Thermistors | ± 0.00006 °C | Ratio accuracy of 0.8 ppm; temperature-controlled internal reference resistors; six input channels. |
| 1595A | SPRTs, PRTs, Thermistors | ± 0.000015 °C | Ratio accuracy of 0.2 ppm; Ratio Self-Calibration; automated zero-power measurements. |
| Logging | |||
| 1529 | PRTs, Thermistors, Thermocouples | ± 0.006 °C (PRT) | Four channels can all be measured simultaneously; battery-powered; logs up to 8,000 readings; flexible display. |
| 1523 | PRTs, Thermistors, Thermocoouples | ± 0.002 °C | Battery-powered, handheld thermometer; INFO-CON connector reads coefficients without programming; saves 25 readings on demand; graphs trends |
| 1524 | PRTs, Thermistors, Thermocoouples | ± 0.002 °C | Same as 1523 but with inputs for two thermometers; logs up to 15,000 readings and stores 25 more on demand. |
| Thermo-hygrometer | |||
Model | Product | Features | |
| 1620A | The “DewK” Thermo-Hygrometer | Two channels measure ambient temperature to ±0.125 °C and %RH to ±1.5 %. Onboard memory holds up to two years of time/date-stamped readings. Visual and audio alarms. Detachable sensors contain their own calibration data for easy recalibrations. NEW! Ethernet and wireless capabilities. | |
| Reference Multimeter | |||
Model | Product | Features | |
| 8508A | Fluke Reference Multimeter | True ohms measurement. 20 amp current measurement. Stores up to 100 PRT coefficients. | |