Matsuo MQT8H(DS) Double-Seal Thermostats

The Matsuo MQT8H(DS) double-seal thermostat offers moisture-proof protection to the temperature control device inside.  This version uses the MQT8H thermostat encapsulated in a clear PVC outer case which is then fused to the PVC lead-wires to create a sealed unit.

This MQT8H(DS) version offer accurate, long-life temperature control from -10°C to 110°C in refrigeration and outside applications.  It is ideal for use in frost-free freezers as either the main temperature control or over-temperature protection – the double-seal protects against any moisture-ingress caused by the thermal cycling of the defrost heater.


  • Refrigerator defrost heater control
  • Anti-freeze trace heating, e.g. rainwater pipes
  • Commercial refrigeration equipment
  • Catering equipment
  • Hydroponic temperature control


  • Double-seal moisture-proof design
  • Switching capacity of 1.3A/250VAC or 2A/125VAC
  • Various lead lengths available
  • Temperature setting range: -10°C to +110°C
Matsuo MQT8H(DS) Moisture-Proof Thermostats