We are often asked for 'student proof meters', and on questioning the enquirer this can range from "Are we able to supply a flame proof meter?" through to, "Are we able to supply a meter that comes back when it is lost?"!
Well, sorry to say, that the impossible remains just that; impossible, but, we are able to recommend certain features to look out for when buying meters to be used by students:-
1. Is the meter waterproof? This is, we feel, perhaps the most important criteria. Tea, Coffee and cola often get spilt onto meters in the classroom, or when in the field, the occasional accidental immersion in the nearest river or pond isn't unheard of. By choosing a waterproof meter, any risk of water damage is removed. 2. Is the sensor exposed or protected? Especially important when looking at a pH electrode. Is the glass measuring bulb protected within the body of the plastic electrode or meter casing? If it is, then there is less chance of a breakage. 3. Does it run on batteries? There is often no mains power where you need it, or if being using in field studies battery power is essential - the other thing to look out for is the battery life, you don't want to be using a meter whilst on a field trip only to find that it stops working half way through the week due to flat batteries.
