Thermistor Instruments

SRH77A 3 Zone Temperature/ Humidity Instrument

When temperature and relative humidity measurements are critical, the SRH77A is the expert’s choice.

Features include a backlit display for dark environments, sealed keypad which protects the instrument

from spills and dust, and a battery eliminator jack. View temperature differential, %RH, and wet-bulb.

You will find this to be an accurate and fast service tool. The bright blue rugged carry case makes this

tool easy to find when on location, or in the back of a service truck.

SRH77A Includes

    1075 General Purpose Probe

    4011 Pipe Strap Probe

    5028 Slim Humidity Probe

Product Specifications

SRH77A

Temperature Range

-40^๐ to 300^๐F

-40^๐ to 150^๐C

Temperature Accuracy

+/-0.3^๐F/ 0.2^๐C

+/-0.5% Rdg or

whichever is greater

Humidity Range

10 to 95%RH

Humidity Accuracy

+/-2% from 20 to 80%RH

+/-3% below 20%

and above 80%RH

Resolution

0.1^๐F/^๐C,

1%RH

Display-LCD

4 digit .5”/12.7mm

Backlight

Yes

Min/ Max

Yes

Hold

No

Ambient Operating Range

0^๐ to 130^๐F

Up to 90%RH,

non-condensing

Case Material

Polyethylene

Case Dimensions

9.5” X 6.5” x 3.5”

24.1 x 16.5 x 8.9 cm

Weight

1.9 lbs/ 862 g

Power

(1)  9V Alkaline

Auto Shut-off

Yes

Battery Life

90 hours

Warranty

1 Year