Dwyer 476A 478A series mark III Handheld digital differential gauge

Xi'an Ao Xin Automation Instrument Co., Ltd.  

(formerly named   Xi'an Ao Xin Automation Instrument Pneumatic Co.,ltd.) is a leading Chinese company specializing in the  E+H   flowmeter    Pressure Measurement  and some other kinds of products . We are a key member China of Pneumatic Association, and is awarded AAA Credit Grade by Bank of China.
High quality of the raw materials, the precision of the parts, the hard tests during and at the end of production are a warranty of reliability and features. Our real strength is to develop customised products to solve any requirement of utilisation. The production runs conforming to the rigorous ISO 9001/2000 requirements .The product range consists of  pressure switch pressure gauge differential pressure switch  transmitter sensor flowmrter  etc   ,which are found in a variety of industrial applications such as machinery, metallurgy, food, textile and waste treatment.

Dwyer 476A 478 A  series  mark III Handheld digital differential gauge 

Accuracy: 0.10% of full scale from 60 to 78 F (15.6 to 25.6 C); 1% of full scale from 32 to 60 and 78 to 104 F (0 to 15.6 and 25.6 to 40 C).
Pressure Hysteresis: 0.1% of full scale.
Pressure Limits: See Ordering page.
Temperature Limits: 32 to 104 F (0 to 40 C).
Storage Temperature Limits: -4 to 176 F (-20 to 80 C).
Display: 0.42 "(10.6 mm) 4 digit LCD.
Resolution: See Ordering page.
Power Requirements: 9 V alkaline battery, installed non-functional, user replaceable.
Weight: 10.2 oz (289 g).
Connections: Two barbed connections for use with 1/8 "(3.18 mm) or 3/16" (4.76 mm) ID tubing for 477A-1, 477A-2, 477A-3, 477A-4 and 477A-5 only Two. compression fittings for use with 1/8 "(3.18 mm) ID x 1/4" (6.35 mm) OD tubing for 477A-6 and 477A-7 only.
On-site calibration instruments and devices
On-site calibration