Splash proof Pen-Type Thermometer



The AST-18 is a feature packed thermometer offering an enhanced measurement range (-50 to 330°C), data hold to retain the measured value, auto power off after 15mins of inactivity and an IP-54 protection rating. The protective sheath with ventilation hole allows the unit to be used as a stirrer whilst simultaneously displaying temperature.

  • -50° to 330°C x 0.1°
  • Water resistant to IP-54 rating - dust protected & splash proof
  • Auto power off after 15mins of no activity
  • Push-button membrane keypad
  • 150 x 4mm Ø stainless steel probe
  • The thermistor sensor is located in the bottom 10mm of the probe
  • Pointed probe tip makes this instrument ideal for liquid or semi-solid sampling
  • 13mm LCD display with function indicators
  • Data hold function retains the displayed value
  • Polycarbonate case and protective sheath
  • Supplied with a protective probe sheath with pocket clip & battery

Technical Specification

Range: -50° to 330°C
Resolution: 0.1°C
Accuracy: ±0.5% of reading, ±1°C (-30 to +150°C) ±2° (others)
Dimensions: 248 x 23 x 13mm (unit) 150 x 4mmØ (probe)       
Power: 1 x 3V Lithium Battery (CR-1220)
Weight: 40g

Calibration Options

A calibration service can be purchased for this unit. Once the Service has been performed a certificate of calibration is produced and dispatched with your order. Calibration Services are performed on receipt of your order and as such will delay shipping. Details and options are outlined below.

Traceable Calibration (Probe) Price
Issued at 4 points: 25, 50, 75, & 100°C
Additional points: From -20 to 140°C
£5.00 per point

Traceable certification is adequate for most applications and meets the calibration requirements of ISO 9001. All measurements contained in this type of certification are traceable back to National UKAS Standards.

UKAS Calibration (Probe) Price
Issued at 4 points: 25, 50, 75, & 100°C
Additional points: From -20 to 255°C
£10.00 per point

A UKAS calibration can also be considered traceable. The difference between the two is that UKAS calibrations are carried out under the remit of an ISO/IEC 17025 quality system by a laboratory that has been accredited by UKAS, to ensure the consistency and accuracy of results.

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