The Lambda Transmitter LT1, in combination with the Lambda Probe LS1, is a universally applicable modular measuring system for direct and highly accurate measurement of O₂ concentration up to 21 % in gases in the superstoichiometric range.

The Lambda Transmitter LT2 is the all-round solution for simultaneous CO/H₂ and O₂ measurement in conjunction with the KS1D combination probe or for pure O₂ measurement with the LS2 probe. From automatic adjustment to purging in dusty applications, this system can be used for almost all needs and marginal conditions.

The LT3 Lambda Transmitter is the cost-effective solution for simultaneous CO/H₂ and O₂ measurement in conjunction with the KS1D combination probe or for pure O₂ measurement with the LS2 probe.

The Lambda Transmitter LT3-Ex is based on the LT3. Due to the pressure resistant enclosure (Ex d) it can be used in conjunction with the KS1D-Ex or LS2-Ex probe in hazardous areas zone 1 and zone 2 for simultaneous measurement of O₂ and CO/H₂ or for selective O₂ measurement with the LS2 lambda probe in potentially explosive areas of Zone 1 and Zone 2.

The LT3-F Lambda Transmitter, in combination with the Combination Probe KS1D and the LAMTEC burner management system, is a fail-safe system (SIL 2) for CO_e combustion optimization. The fault safety is only valid for the complete system.

The Lambda Transmitter LT4, in conjunction with the KS1D combination probe, is a fail-safe system (SIL 3) for simultaneous monitoring of O₂ concentration and oxidizing gas components (CO/H₂). It is the only SIL 3-certified flame monitoring system on the market.

The NO_x Transmitter NT1, in combination with the Combination Probe KS2DNO_x, is the innovative package solution for simultaneous NO_x and O₂ measurement in exhaust gases of combustion plants. The measurement is performed directly in the exhaust gas (in situ), therefore no measurement gas preparation is necessary. Up to 4 probes can be connected.