Precise temperature checks in the field need a meter that is easy to read, easy to place and stable enough for demanding work. This handheld family measures with interchangeable 4-wire Pt100 probes via M12 connection, covering -200...+850 °C with 0.01 °C resolution and IEC 60751 linearization.
For daily use, the display adapts to the task: large values, multiline views, min/average/max statistics or a real-time graph. HOLD freezes a reading, REL compares against a user-defined reference, and configurable alarms warn with acoustic or optical signals when thresholds are exceeded.
PRO 115 adds file-based data logging for up to 1 million data sets, including timestamped measurements and CSV export via USB-C mass storage.
The housing supports practical field handling with a foldable stand, integrated magnet, ingress protection IP67 and IK06 impact protection.
Battery autonomy is typically > 150 h.
Predefined calibrated sets offer an accuracy of up to 0.07°C.
Calibrated precision set with thermometer, AX111-D3-AA-230 probe, PRO-400 case and CvD adjustment; DAkkS-accredited calibration at -20, 0 and 70 °C test points with ±0.07 °C accuracy within optimized range and instrument at room temperature.
The LCD shows large values, multiline measurement views, min/average/max statistics or a real-time graph for the selected parameter.
HOLD freezes the current value on the display. REL shows the measurement against a reference value defined by the user.
Thresholds can be configured with acoustic signaling, optical signaling by flashing backlight and red status LED, and optional hysteresis.
The Pt100 input supports Callendar-Van Dusen parameters R0, A, B and C, plus zero point and gradient adjustment.
The port supports PC connection for COM interface operation. PRO 115 can also appear as a mass storage device for logged files.
The instruments operate with 4 AA alkaline batteries or an external 5 Vdc supply via USB-C, with configurable auto-off and backlight settings.
| Number of analog inputs |
1
|
|---|---|
| Temperature inputs |
1
|
| Accuracy temperature |
±0.06 % OR ±0.05 °C
|
| Resolution temperature |
0.01 °C
|
| Long-term drift temperature |
±0.02 °C
|
| Measuring principle |
RTD
|
| Temperature range |
-200...+850 °C / -328…+1562 °F
AX 111-D3-AA: -50...+250 °C |
| Temperature sensor |
Pt100
|
| Measurement rate |
2 /s
|
| Operating temperature |
-5...+50 °C
AX 111-D3-AA probe cable: -20...+105 °C |
|---|---|
| Operating relative humidity |
0...85 %RH
|
| Condensation |
not permitted
|
| Storage temperature |
-25...+65 °C
|
| Degree of protection case |
IP67
|
| Dimensions |
80 mm x 170 mm x 38 mm
|
|---|---|
| Materials |
ABS, TPE, Polyester, side protection: TPE, front panel: polyester
|
| Weight |
340 g
|
| Clock |
User settable RTC. Max. drift 1 min/month @ 25 °C
|
|---|---|
| Data export |
USB-C Mass Storage Device
|
| Type |
automatic & manual
|
| Data structure |
Up to 1 million data sets, file system based. Each data set includes date/time stamp and measurement. Data are stored in CVS files.
|
| Interval |
1, 2, 5, 10, 15, 30 s / 1, 2, 5, 10, 15, 30 min / 1 hour
|
| Description |
Automatic with manual start/stop
|
| Interface type |
USB
|
|---|---|
| Communication ports |
USB-C
|
| Battery life |
150 h
|
|---|---|
| Battery life description |
> 150 h typ. continuous operation
|
| Battery type |
Battery 4x AA alkaline
|
| Power consumption |
20 mA, typ.
|
| Connection |
4-pole M12
|
|---|
| Display presence |
Yes
|
|---|---|
| Description |
Multiple choice of measurement screens:
Large digit single value Multi-row Statistical info (Min/Avg/Max) Chart view |
| Resolution |
140 x 160 dot matrix (visible area 42 x 50 mm)
|
| Type of controls |
Button
|
| Display type |
LCD backlit
|
