These thermohygrometers with alarm are perfect for monitoring critical environments during the day, overnight, and weekends. Alarms sound when humidity or temperature conditions rise above or fall below programmed set points. The large-digit, triple display shows the MIN, MAX, and current humidity or temperature readings - switch between measured values with the press of a button. External sensor model 98766-85 features a 7 ft (2.1m) long cable for monitoring in hoods, refrigerators, freezers, or other remote locations. Model 98768-48 has an integrated ambient sensor for obtaining readings where the unit is placed. Choose the model that suits your application needs!

Traceable® products have an individually-numbered Traceable® certificate provided with each unit, that assures accuracy from an ISO/IEC 17025:2017(1750.01) calibration laboratory accredited by A2LA. It indicates traceability of measurements to the SI units through NIST or other recognised national measurement institutes (NMI) that are signatories to the CIPM Mutual Recognition Agreement. Each product goes through an intense vetting process before it can carry the Traceable name, thus saving you both time and money by not having to calibrate separately.

• Choose from external or ambient (internal) probe models
• Set the audible alarm to sound if measurements go outside pre-set conditions
• Switchable for °F/°C
• Display: triple-line LCD
• Mounting type: wall or bench
• Alarm: audible; four independent high and low RH and temp set-points
• RH range: 5 to 95%
• RH accuracy: ±3% RH from 25 to 75%, ±5% otherwise
• RH resolution: 0.1%
• Temperature range: 32 to 140°F, 0 to 60°C
• Temperature accuracy: ±0.5°C
• Temperature resolution: 0.1°
• Includes wall mount, bench stand, AAA battery, and NIST-traceable calibration certificate with data