For charging  BP-24V Battery Pack
used in conjunction with  GF1900 Sulfuryl fluoride Monitor

Charge Type Four stages:  De-sulfation; bulk charging; cell equalization; float voltage.
Input Power 100-240 VAC, 1.5 A (max), 50/60 Hz
Rated/Max Output Voltage 24 VDC / 28.8 VDC
Interconnect Cable to Battery Pack 27 inches (686 mm), provided with MS-type mating connector
Dimensions (less cable) 1.6″ H x 2.7″ W x 4.5″ D (41 x 69 x 114 mm)
Weight (less cable) 1 lb (0.45 kg)
Approvals UL, cUL, CSA, CE, RoHS, EMC, LVD