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Starrett 657-1

Magnetic Base Dial Indicator Universal

The Model 657-1 Transmitter provides two 4-20 mA channels to produce separate output signals for both relative humidity and temperature. This inexpensive device delivers ±2% accuracy for humidity and ±3% for temperature measurements. The sensor employed in the 657-1 features a state-of-the-art integrated polymer film humidity sensor and a thin-film platinum temperature sensor to assure high reliability and rock-solid stability over years of continuous service. Stainless steel probe measures 5/16" x 10" (0.8 x 24.4 cm) and can be easily mounted to most ductwork using either of the two optional kits.

Order #: 657-1

Mfg Part #: 64436

$365.00 USD

Ships in 2-3 weeks

Free shipping over $250

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  • Relative Humidity/Temperature Transmitter