I have an Apera Ph meter ($50) that lasted 10 months and now it will not calibrate. I have another one arriving tomorrow b/c I’m on day 29 of flower, but can anyone recommend a high end Ph meter? I want something that will last for several years and I’m willing to spend $200-$300. I know the $100 Blue Labs is popular, but I can’t help but wonder how much better a $100 meter is compared to a $50 meter. I don’t want to spend $100 and then need to replace it 18-24 months after purchasing.