C7027A , C7035A, C7044A and C7927A Minipeeper  are flame detectors that detect ultraviolet radiation emitted from a burning flame. Used in conjunction with Honeywell burner controllers  provides flame monitoring for gas, oil or gas-oil combined burnersfor commercial and industrial burner applications

C7027A:

• Operating Temperature:  0°F to 215°F(-18°C to 102°C) or -40°F to 215°F (-40°C to +102°C) depending on environment
• Maximum pressure:  5 psi (34.5 kPa)
• Mounting: connector inner thread 1/2-14 NPSM  mounted on 1/2 inch scope
• The back of the detector has a clamp type connector 1/2 in
• Plastic insulated lead wire, 18 AWG, NEC Class 1 withstands  221 ° F (105°C)

C7035A

• Operating Temperature:  0°F to 250°F(-18°C to +121°C), or -40°F to 250°F (-40°C to +121°C) depending on environment
• Maximum pressure:  5 psi (34.5 kPa)
• Mount: Connectorwith 1-11-1/2 NPSM internal thread for 1-inch viewfinder mounting
• 18 AWG, NEC Class 1 insulated silicone rubber conductor withstands 302°F (150°C)
• The back of the detector has a clamp type connector to 1/2 in.

C7927A

• Operating Temperature: C7927A1016: -40°F to +200°F (-40°C to +93°C). Storage temperature:  -20°F to +120°F(-28°C to +49°C).
• Maximum pressure:  5 psi (34.5 kPa).
• Mounting: Connector with 1/2-14 NPSM internal thread for mounting on 1/2 inch (13mm) scopes.
• Wiring Connections:  Two 8 ft color codes. (2.4 m), plastic  18 AWG, NEC Class 1 lead wire. The back of the detector has 1/2 inch clamp connector spud style.