Monochromatic pyrometer CellaPort PT 129
with LED display°CK

Monochromatic pyrometer - CellaPort PT 129 - Keller Pyrometer Systems - with LED display / °C / K
Monochromatic pyrometer - CellaPort PT 129 - Keller Pyrometer Systems - with LED display / °C / K
Monochromatic pyrometer - CellaPort PT 129 - Keller Pyrometer Systems - with LED display / °C / K - image - 2
Monochromatic pyrometer - CellaPort PT 129 - Keller Pyrometer Systems - with LED display / °C / K - image - 3
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Characteristics

Technology
monochromatic
Display
with LED display
Units of measurement
°C, K
Optical resolution
60:1
Communication
USB
Applications
for metals, for aluminum
Other characteristics
precision, for low emissivity, portable, optical
Temperature

Max.: 800 °C
(1,472 °F)

Min.: 150 °C
(302 °F)

Spectral range

Max.: 2.2 µm

Min.: 1.8 µm

Response time

Max.: 75 ms

Min.: 2 ms

Description

Product overview:
The CellaPort PT 129 is a handheld single-colour pyrometer designed for temperature measurement on low-emissivity materials, especially aluminium and bare metals, in the 150–1200 °C range (available in several segments). A dedicated blocking filter reduces sensitivity to daylight and reflected external radiation, enabling reliable measurements in metalworking and in laser-heated processes (diode, Nd:YAG, CO2).

Key features:
  • Measuring range 150–1200 °C (version-dependent segments)
  • Blocking filter reduces influence of daylight and reflected radiation
  • Focusable precision lens and broadband anti-reflective coating
  • Suitable for aluminium and bare metals at low temperatures
  • 4-digit red LED display
  • USB interface (standard)
  • Rechargeable battery operation (~15 h)


Measurement parameters:
Measuring range: 150–1200 °C (several segments depending on version)
Sensor: photodiode
Spectral range: 1.8–2.2 µm
Response time (t98): depending on segment, from ≤2 ms up to ≤75 ms
Measurement uncertainty: 0.75 % of reading, min. 5 K
Repeatability: 1 K
Temperature coefficient: 0.25 K/K (T < 500 °C), 0.05 %/K (T > 500 °C)
Resolution (interface/display): 0.1 K / 0.1 K (<200 °C) or 1 K (≥200 °C)

Optical variants / Lenses:
Examples of lens options and focus ranges: F50 PZ 20.08 (0.3 m–∞) for 150–800 °C; Standard PZ 20.01 (0.4 m–∞), Close-up PZ 20.03 (0.2–0.4 m), Telephoto PZ 20.06 (1.2 m–∞) for 180–1200 °C. Measuring field shape: round. Example distance-to-spot ratios: AF10 -> 48:1, AF21 -> 60:1, AF22 -> 56:1, AF23 -> 96:1.

Electrical parameters:
Interface: USB
Power supply: rechargeable battery pack
Battery life: approx. 15 hours (continuous, Ta = 23 °C)

Display & indicators:
Sighting: through-the-lens sighting
Display: 4-digit red LED, digit height 8 mm
Status indicators: 2 external LEDs, 3 internal LEDs
Controls: 3 buttons

Environmental & mechanical:
Operating temperature: 0–50 °C
Storage temperature: -20–+60 °C
Permissible humidity: max. 95 % r.H. non-condensing
Dimensions: Ø 65 mm x 197 mm (plus lens length)
Housing: aluminium
Protection class: IP40
Weight: approx. 1.1 kg

Adjustable parameters (examples):
  • Emissivity and emissivity tables
  • Transmittance
  • Compensation of reflected ambient radiation
  • Smoothing filter and measurement hold
  • ATD and linearization parameters
  • Status LED configuration, °C/°F, auto shutdown


Functions:
ATD (Automatic Temperature Detection) for automatic detection in discontinuous processes

Scope of delivery:
Pyrometer CellaPort PT 129; protective and carrying case; charger; USB cable VK 11/D (1.8 m); CellaView software; short manual

Software:
CellaView (supplied)

Measuring field examples (selected):
Distance 0.00 mm : field Ø 24.50 mm
Distance 12.00 mm : field Ø 23.77 mm
Distance 24.00 mm : field Ø 23.04 mm
Distance 300.00 mm : field Ø 6.25 mm

Technical specifications:
  • Product name: Pyrometer CellaPort PT 129
  • Model designation: CellaPort PT 129 (AF10/AF21/AF22/AF23 versions)
  • Measuring principle: single-colour
  • Spectral range: 1.8–2.2 µm
  • Measuring range: 150–1200 °C (version-dependent)
  • Response time (t98): ≤2 ms to ≤75 ms depending on segment
  • Accuracy: 0.75 % of reading, min. 5 K
  • Repeatability: 1 K
  • Interface: USB
  • Battery operation: rechargeable pack (~15 h)
  • Display: 4-digit red LED
  • Housing: aluminium, IP40
  • Weight: approx. 1.1 kg
  • Lens options: PZ 20.08 / PZ 20.01 / PZ 20.03 / PZ 20.06
  • Suitable for: aluminium and bare metals, laser-heated processes (blocking filter)

Exhibitions

Meet this supplier at the following exhibition(s):

Shenzhen International Semiconductor &amp; IC Exhibition
Shenzhen International Semiconductor &amp; IC Exhibition

9-11 Sep 2026 Shenzhen (China)

Inter Foundry 2026
Inter Foundry 2026

10-12 Sep 2026 Coimbatore (India)

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.