Thermistor thermometer

Portable grey and silver unit with a control knob and a reader dial with a needle and markings in degrees celsius from -30 to 20 on the front. A grey plastic probe attachment plugs into sockets at the top of the main unit. The unit is used to measure the temperature of items being probed. The thermometer and probes are held in a brown leather carrying case inscribed with 'Grant Instruments'. A centigrade to celsius conversion chart is sellotaped inside the case and brief instructions are given on a sticker on the back of the main unit.