



The Reference thermometer is a high accuracy PT100
thermometer that is supplied with a 5-point UKAS Certificate of Calibration. The Reference thermometer is ideal for comparison checking the calibration and accuracy of other thermometers and probes, when used in conjunction with a stable temperature heat or chill source, see our dry-well calibrators. The reference thermometer measures temperature over the range of -99.9 to +199.9°C with a resolution of 0.1°C and an accuracy of ±0.2°C. The thermometer features a simple on/off switch with low battery and open circuit indication, when applicable.
Each calibration certificate indicates deviations from standards at various check points:
-18°C, 0°C, +40°C, +70°C and +100°C. Special ranges may be certified by arrangement with the ETI UKAS calibration laboratory. Now available with re-chargeable battery option!
|
222-005
|
Reference thermometer
|
£
Ex VAT
|
||
|
814-132
|
aluminium Comparator
|
£
Ex VAT
|
||
|
839-040
|
9 volt MN1604 (PP3)
|
£
Ex VAT
|
||
|
839-420
|
ETI battery pack & charger (PP3) more info->
|
£
Ex VAT
|

The Reference thermometer is supplied with a permanently attached, high accuracy probe incorporating a 1/10th DIN PT100 sensor. The probe measures Ø3.3 x 130mm and is supplied with a one metre PVC lead. instrument click here to view available probes.
• high system accuracy ±0.2°C
• 5-point UKAS Certificate included
• ideal for comparison checks
• supplied complete with high accuracy probe

|
specification |
Reference thermometer |
|
range |
-99.9 to +199.9°C |
|
resolution |
0.1°C |
|
accuracy |
±0.2°C ±1 digit |
|
battery |
9 volt MN1604 (PP3) |
|
battery life |
200 hours |
|
sensor type |
PT100 (3-wire) |
|
display |
12.7mm LCD |
|
dimensions |
36 x 80 x 147mm |
|
weight |
250 grams |
|
a UKAS Certificate of Calibration is included with each instrument |
|
Comparator for infrared thermometers
The infrared thermometer Comparator provides a stable black body temperature source and is an inexpensive way of checking infrared hand held thermometers when used in conjunction with a Reference thermometer.
The Comparator consists of an aluminium cup Ø60 x 100mm with a solid matt black base. The base incorporates two Ø3.5mm holes, one for a Reference thermometer's probe and the other for an additional probe, if required.
3000 series dry-well heat source calibrator
The 3000 dry-well calibrators are small and lightweight heat sources, ideal for checking the accuracy of digital thermometers and temperature probes. The units have a temperature range of +33 to +300°C with a resolution of 0.1°C.
The dry-wells offer a high level of stability (±0.5°C) and a stabilisation time of five minutes. Plug it in, switch it on, set the verification temperature with the front panel buttons and insert your probe into the correct size well. Compare the temperature reading of your thermometer to the display and the difference is the error.
accessories
The Comparator is an optional accessory. Please click here for details
| 814-132 aluminium Comparator |
![]() |
£
Ex VAT
|
|||
| 839-040 9 volt MN1604 (PP3) |
![]() |
£
Ex VAT
|