Recording Pens: Fine Point Felt Disposable Pens Medium: Air, Gas, Water, Oil, Mud (only with snubber)
Standard Conformance: – Tech Cal Recorders conform to API and NACE requirements as well as AGA recommendations. – Chart Paper required is 12” (11.125” actual) conforming to Barton & American Meter Recorders. – Case is made of Polyethylene Copolymer, Chemical Resistant, Light Weight & Durable Temperature Range: -10°F to 210°F