Selected product option for Digital temperature and humidity probe for handheld meters. All information below applies to the selected product option.
Accurate humidity and temperature checks start with a probe the meter can trust. Designed for PRO D01 and PRO D05 handheld meters, DX 311 measures relative humidity and temperature while supplying calculated values such as dew point, wet bulb temperature, absolute humidity and specific enthalpy.
The probe supports efficient work across portable measurement tasks because it arrives factory-calibrated in multiple relative humidity points and is ready to use. Calibration data are stored directly in the probe, allowing interchangeability without recalibration when switching between compatible meters.
Reliable detail is built into the measurement chain: 0…100% RH and -50…+160 °C measuring ranges, 0.01% RH and 0.01 °C resolution, Pt100 temperature sensing and typical power consumption below 1 mA. An ergonomic handle, PBT stem and protector cap, and 4-pole M12 cable connection make the probe practical for regular handheld use.
The probes connect to compatible PRO handheld meters via the DX-Sensor-Interface and a 4-pole M12 connection.
Relative humidity is measured with a temperature-compensated capacitive sensor, while temperature is measured with a Pt100 element.
The probe provides multiple calculated climate values, including dew point, wet bulb temperature, absolute humidity, mixing ratio and frost point temperature.
DX310 can be screwed directly onto the instrument or connected by cable. DX311 uses an ergonomic handle with cable connection.
DX311 is available with 1 m, 2 m or 5 m cable lengths, with other lengths on request according to the ordering structure.
Optional filter caps include sintered stainless steel, PTFE and standard PBT versions with stainless steel grid protection.
| Accuracy relative humidity |
±1.2% (0…85%) / 2% (85…100%) @ T=0…50 °C (1.5 + 1.5% of the measured value) % @ T=remaining range
|
|---|---|
| Relative humidity range |
0...100 %RH
|
| Resolution relative humidity |
0.01 %RH
|
| Sensor type relative humidity |
Capacitive, temperature compensated
|
| Long-term drift relative humidity |
±0.5 %RH/year
|
| Sensor type temperature |
Pt100
|
| Accuracy temperature |
±0.1 % -50...+160 °C
|
| Long-term drift temperature |
±0.03 °C
|
| Resolution temperature |
0.01 °C
|
| Storage temperature |
-40...+80 °C
|
|---|
| Current consumption |
< 1 mA
|
|---|
| Connection |
DX M12
|
|---|---|
| Probe Diameter |
14 mm
|
| Handle |
Polyamide (PA6-GF30), 98 mm
|
| Probe length |
132 mm
|
| Cable |
PVC
|
