1, first-tier brands - the world's leading brands, the relative accuracy, stability, and the warranty period will be long, especially when it comes to oxygen probe and other easy to fail probes, the warranty will have a direct impact on the average cost of use, and the price of these brands will appear to be higher in the long run. Of course, the one-time purchase price of these brands will appear to be higher, in the long run, can spare you a lot of maintenance, replacement of spare parts costs and trouble (because the core of the detector is the probe, if the probe is replaced individually, the price is not low. The main brands are Germany Dr?ger, the United States Meisian, Japan RIKEN (price type of the most expensive, and because it is a Japanese brand, as a countryman, do not recommend purchasing RIKEN)
2, second-tier brands - Honeywell, BW, Oldham and several other brands, but because of the industry for many years, a better understanding of the overall situation. BW's oxygen probe is the Achilles heel, often does not show or problems; Honeywell may be more famous, often think big brand, but in fact, Honeywell earlier is not a professional gas detector, in the industry later in order to also want to occupy this piece of the market, is through the acquisition and merger of the rest of the brand to do, strictly speaking, and the OEM is almost the same; Oldham in the domestic popularity of the lower, the market share is not big, and the after-sales service will appear to be a bit strong. For the after-sales will appear to be somewhat incompetent;
3, third-tier brands - mostly domestic, such as the domestic Koda, Hanwei, etc., in general, there is indeed a large gap in quality, although the first purchase price is very low, but if from the safety and stability, as well as long-term maintenance, the average cost of giving you the Trouble and waste of money, may not even be expected.
In summary, you still need to choose according to your actual situation, if it is in order to cope with the above inspection, Oh buy a third-tier brand on it, if you need to use, you need to fully consider the overall cost, which includes capital, long-term average cost, and your maintenance and other hidden costs.
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