{Sensor identification code/model number}? {Name for the sensor}? {Short name of sensor used e.g. on monitor display program}? { where sensor is attached to ("sample" | "can") }? {Defines the axes for logged vector quantities if they are not the global instrument axes}? { what we measure "temperature | pH | magnetic_field | electric field | conductivity | resistance | voltage | pressure | flow | stress | strain | shear | surface_pressure" }? { The type of hardware we use for the measurement e.g. Temperature: "J | K | T | E | R | S | Pt100 | Rh/Fe" pH: "Hg/Hg2Cl2 | Ag/AgCl | ISFET" Ion selective electrode: "specify species; e.g. Ca2+" Magnetic field: "Hall" Surface pressure: "wilhelmy plate" }? { Is data collection controlled/synchronised to this quantity: 1=no, 0=to "value", 1=to "value_deriv1" etc.}? {Upper control bound of sensor reading if using run_control}? {Lower control bound of sensor reading if using run_control}? {nominal setpoint or average value - need [n] as may be a vector}? {Nominal/average first derivative of value e.g. strain rate - need [n] as may be a vector}? {Nominal/average second derivative of value - need [n] as may be a vector}? {Time history of sensor readings}? {Time history of sensor readings}? {Time history of sensor readings}? { along beam | across beam | transverse | solenoidal | flow shear gradient | flow vorticity }? {For complex external fields not satisfied by External_field_brief}?