Cave surveyors who haven't branched out into DistoX territory might be interested in the combined compass / clino made by Eyeskey. (Google 'Eyeskey compass clino'). I've just got one for Matienzo. At £69.99 (or less) it would appear to be well made and up to the Suunto standard (cost of Suunto unit is around £200). The Eyeskey is a bit heavier and might need some silicone around the seals.
Other units are available!
Laser measures are also coming down in price: £20 for a 40m range on Amazon / Ebay.
