ABC-Miljø ApS, manufacturer of H2S meter H2S-WARN and dosing system NEED-BASED DOSING.This combination can give over 70% savings on the chemistry account. H2S-WARN with Li-ion battery, can be charged or connected to solar cell. The instrument can be used wherever measurements are needed. Eg. by: - Citizen inquiries about odor nuisance. - Detection of sulfur hydrogen concentrations and problems. - Control by chemo-dosing, aeration etc. - Sending cleaning pig manually or automatically. - Conduction effect mm. High connection stability, measurement data for SRO can be established, user-friendly software.The dosing system NEED-BASED DOSING controls/regulates the dosing pump based on sulfur hydrogen measurements as well as software with algorithms developed by ABC-Miljø ApS.