Calisto 2
Hydrogen – Moisture Carbon Monoxide
Combine early fault detection and monitoring of cellulose degradation
CALISTO 2 is Morgan Schaffer’s newest innovation for value-added transformer fault detection and monitoring. Still featuring unequalled performance and stability for the measurement of moisture and dissolved hydrogen—THE key gas for detecting incipient faults at their earliest stage—CALISTO 2 also offers independent measurement of carbon monoxide, a gas often generated in large quantities when transformer cellulose overheats. CALISTO 2 is supplied standard with DNP3.0 and MODBUS communication protocols, thus allowing easy deployment within existing communications and SCADA networks.
NEW: Video Demonstration

Calisto Interchangeability for advanced transformer condition assessment.
- Additional measurement of dissolved carbon monoxide
- Built-in oil circulation and flow monitoring
- Continuous enclosure and oil conditioning
- Communication protocols: DNP3, Modbus, IEC 61850 (optional)
- Vacuum tolerant
- Substation hardened communication electronics
- Built-in moisture and solubility coefficients for all common insulating fluids
- Be alerted to accelerated aging of solid insulation
- Make informed maintenance decisions
- Easily install and integrate monitor within existing operations
- Be alerted to any monitor malfunction and low oil circulation
- Easily replaced with Calisto 5 or Calisto 9 if required
Calisto Brochure - English
Calisto Brochure - Russian
Calisto Brochure - German
Calisto Brochure - Bulgarian
Calisto Brochure - Spanish
Calisto Brochure - French

Calisto Expert Series products are designed to optimize and enhance the use of your Calisto monitors.
Oil Temperature Sensor
- Reports %RH at Real Temperature
- Truly Accurate
- EMC Immune
- No Calibration Required
- Designed for Harsh Environments
- 30-Minute Installation

Stainless Steel Lines
- Easy to Install
- Customizable
- Safe
- Built to Last

Isolated Ethernet Kit
- Customizable
- Easy Communication
- UV and Oil Resistant
- Can Withstand the Worst Climates