Sensors and Systems for combustion technology

Combination Probe KS1D

Kombi-Sonde KS1

Simultaneous measurement of the concentration of O2
and oxidising gas constituents (CO/H2)

  • Heated, electro-chemical measuring cell, made of zirconium dioxide ceramic (ZrO2)
  • Use of proven measuring principles
  • Simultaneous measuring of oxygen O2 and detection of oxidisable (combustible) parts of flue gas 
  • Display as COequivalent (COe)
  • Cost-efficient measuring for monitoring and optimisation of oil- and gas combustions 

Range of measuring O2:

0...18%Vol. O2 - with limitations 0...21 Vol.% O2
COe: 0...1.000 ppm COe, 0...10.000 ppm COe on request

Preciseness of measuring:

O2: +-5% of measuring value – not better than +- 0,3 Vol.%
COe: +-25% of measuring value – not better than +- 10 ppm
after prior alignment of application conditions with a CO reference measuring in a range of measuring 0...100 ppm: <= 10 ppm

Response time t60:
(60% of final value)

O2 <= 10 seconds
COe <= 2 seconds

Failure impact:

Change of temperature of measuring gas in dependency of preciseness of temperature control of ZrO2 measuring cell


against SO2, NH3, NO, Propan, other arenes

Allowed fuels

Residue-free, gaseous hydrocarbons, light fuel oil and brown coal / black coal

constant exhaust gas temperature

<=  300°C (Article-No. 656R2000)
<=  450°C (Article-No. 656R2010 / 656R2012)

Operating temperature
(KS1-D sensor)

Probe housing <= 400°C (measured at hexagonal)

Cable bushing <= 200°C

Connecting cable <= 150°C


>= 3 years at oil and domestic gas

Probe output voltage

800...-30mV (O2-electrode) <-> 0...21 Vol. % O2

-30...800mV (CO/H2-electrode) <-> 0...10.000ppm COe

Probe internal resistance RI
in air at 20 °C and 20  W Heat output (new probe) 

15...30 Ohm O2 - electrode 1
15...30 Ohm CO/H2 - electrode 2

Heat output at ambient temperature

18...25 W - depending on type

Isolation resistance between heating and probe connector

> 30 MΩ

Power supply

at connector (D/C- A/C voltage)

at PH 18 VA  → 11,4 V
at PH 20 VA  → 12,34 V
at PH 25 VA  → 14,8 V

Heat output for
TGas = 350 °C

appr. 18 W

Heat current at
PH 20 VA

appr. 1,6 A
appr. 5A shortly at heating-up

Dimensions of probe
KS1D sensor
KS1D with housing


Length 115  mm; thread M18 x 1,5 mm
Length 185 mm; R 1 1/4“, D=31,75 mm

The combination-probe KS1D is qualified for measuring at places or spots, which are marked by infiltrated air, as well as in multi-burner applications, for which a sole O2 measuring cannot give any statements for atmosphere or combustion process respectively a fast response is needed. It is used in applications controlling oven atmosphere at measureing gas temperatures up to 1400 °C.

It is applied to gas combustions of all types, wood- and carbon-dust combustions as well as garbage combustion plants, glow- and melting ovens and crematoriums.



Are of use


656 R 2000

< 300°C

(approved, continuous exhaust gas temperature)  

Residue-free, gaseous arenes, light heating oil and coal / black coal

Weight: 560 g

Electrical connection: Teflon line (5-wire), Connector with interlock, length 2 m

656 R 2010

< 450°C

(approved, continuous exhaust gas temperature)  

Residue-free, gaseous arenes, light heating oil and coal / black coal

Weight: 320 g

Electrical connection: Teflon line (5-wire), Connector with interlock, length 2 m

English  English

Endcustomer information

LT3-F KS1D - Quick Reference English

Technical datasheet

High Dust Mounting Flange - Technical Data English

KS1-HT - Technical Data English

KS1D in Housing - Technical Data English

KS1D without Housing - Technical Data English

KS1D-Ex - Technical Data English

KS1D-HT - Technical Data English

KS1D-K - Technical Data English

Portable Calibration Unit - Technical Data English

LT2 in Panel Installation Housing - Technical Data English

LT2 in Wall Mounting Housing - Technical Data English

LT2 on Mounting Plate - Technical Data English

LT2 on Mounting Plate - Technical Data English

LT3 - Technical Data English

LT3-Ex - Technical Data English

LT3-F - Technical Data English


Sensory Combustion Optimisation of Gas Combustion Systems English

Combustion Optimisation - Product Overview English

LAMTEC Innovation - Sensor System Lambda Transmitter LT3-F Combination Probe KS1D English

LT2 LS2 KS1D - System Overview English

LT3 LS2 KS1D - System Overview English

LT3-Ex KS1D-Ex - System Overview English


How does my KS1D work? - Description English

Please login here to see more downloads.

German  German

Endcustomer information

LT2-K KS1D-K - Kurzanleitung German

LT3-F KS1D - Kurzanleitung German

Technical datasheet

Hochstaubaufnahmeflansch - Technische Daten German

KS1-HT - Technische Daten German

KS1D im Gehäuse - Technische Daten German

KS1D ohne Gehäuse - Technische Daten German

KS1D-Ex - Technische Daten German

KS1D-HT - Technische Daten German

KS1D-K - Technische Daten German

Tragbare Abgleicheinheit - Technische Daten German

LT2 auf Montageplatte - Technische Daten German

LT2 im Tafeleinbaugehäuse - Technische Daten German

LT2 im Wandaufbaugehäuse - Technische Daten German

LT3 - Technische Daten German

LT3-Ex - Technische Daten German

LT3-F - Technische Daten German


Sensorische Verbrennungsoptimierung von Gasfeuerungsanlagen German

Feuerungsoptimierung - Produktübersicht German

LAMTEC Innovation - Sensorsystem Lambda Transmitter LT3-F Kombi-Sonde KS1D German

LT2 LS2 KS1D - Systemübersicht German

LT3 LS2 KS1D - Systemübersicht German

LT3-Ex KS1D-Ex - Systemübersicht German

French  French

Endcustomer information

LT3-F KS1D - Instructions sommaires French

Technical datasheet

KS1-HT - Caractéristiques techniques French

KS1D en boîtier - Caractéristiques techniques French

KS1D sans boîtier - Caractéristiques techniques French

KS1D-HT - Caractéristiques techniques French

KS1D-K - Caractéristiques techniques French

Unité de calibrage portable - Caractéristiques techniques French

LT2 dans coffret mural - Caractéristiques techniques French

LT2 en montage sur panneau - Caractéristiques techniques French

LT2 sur platine de montage - Caractéristiques techniques French

LT3 - Caractéristiques techniques French

LT3-F - Caractéristiques techniques French


LT3 KS1D - Vue d'ensemble du French

Czech  Czech

Endcustomer information

LT3-F KS1D -Krátký návod pro uživatele Czech

Italian  Italian

Endcustomer information

Trasmettitore Lambda LT2 KS1D Sonda combinata KS1D - Guida sintetica per l'utente Italian

Spanish  Spanish

Endcustomer information

LT3-F KS1D - Manual rápido para usuarios Spanish

Please login here to see more downloads.