10V Precision Battery Reference

£119.00 (excl. VAT)

non-UK: £139.00 (£119 + £20 shipping), approx. €151.21**, $185.86**
UK only: £154.80 (£119 + £10 shipping + VAT)

10V 0.003% precision reference
Internally (2x 9v batteries) or Externally powered by 12V to 15V (cable included)
2 year warranty (1 year for calibration)

**Conversion calculated using XE.com Live Money Transfer rates (1 Jan 2021).
Locally paid import taxes and duties excluded.


In stock

SKU: 389-1 Category:


Based on the excellent LT1021 IC, the 389-1 low cost voltage reference is designed to provide an accurate and repeatable precision 10V DC for general use around lab and workshop. The 389-1 is built into a robust metal enclosure, with the sensitive electronics sealed in silicone to reduce changes due to humidity. With a temperature coefficient typically less than 2.5ppm/oC and aged for 200+ hours before final adjustment.

Features & Specifications

  • Output: 10V +/-0.003% (30ppm)
  • Internal (2x 9v batteries) or External DC powered (12-15V@ 30mA)


All voltage references are adjusted/calibrated in-house and given a final calibration prior to being dispatched. Final calibration is checked against our Keysight 34465A (calibrated by a UKAS approved laboratory). We issue a Certificate of Calibration with each reference.


1x 389-1 Voltage Reference
1x 1.8M DC lead (2.1×5.5mm barrel jack to bare tails)
1x Certificate of Calibration


2 year warranty against manufacturing defects.
1 year warranty for calibration.

Related Documents

Additional information

Weight0.5 kg
Dimensions10.6 × 10.8 × 4.5 cm




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