The Cooper-Atkins SRH77A is a professional-grade digital thermometer designed for demanding industrial environments. With its ability to measure temperature, relative humidity, and wet bulb, this instrument provides comprehensive environmental monitoring in a single, rugged device. The SRH77A features a switchable °F/°C display with backlight for easy reading in low-light conditions, and a sealed keypad that protects against spills and dust, ensuring reliable operation in harsh settings.
Key Features & Highlights
- Switchable °F/°C with backlit display for clear readings
- Sealed keypad protects against spills and dust
- 3-zone Min/Max memory for tracking temperature variations
- Scan mode for continuous monitoring
- Auto shut-off after 15 minutes of non-use, or continuous ON mode
- Temperature differential between zones 1 & 2
- Measures % RH and wet bulb
- Ambient humidity range: 10 to 95% RH (90% non-condensing)
- Rugged hard carrying case included
- Powered by one 9V alkaline battery
- Factory calibrated and backed by 1-year warranty
Each unit includes a Model 1075 general purpose puncture probe, Model 4011 pipe strap probe, and Model 5028 humidity probe, making it a complete solution for HVAC, food safety, and industrial maintenance applications.





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