190 6820 / 6820EVS P/N LS10144-001SK-E:C  09/28/2017
Manufacturer
Model Name or Number
(Base model name or number in 
parenthesis.)
Compatibility ID
# per Loop
Head Base
Apollo 55000-350 (45681-200) 55000-350 45681-200 15 / loop
55000-250 (45681-200) 55000-250 45681-200 24 / loop
55000-225 55000-225 45681-255, 256
45681-200, 220, 232, 
251, 252
15 / loop for Ion 
Detectors
15 / loop for 
Photo Electric 
Detectors
55000-226 55000-226
55000-227 55000-227
55000-325 55000-325
55000-326 55000-326
55000-327 55000-327
55000-328 55000-328
Hochiki SLR-24 HD-3
HSC-220R(HB-72)
NS6-220 OR NS4-220 
(HB-3)
15 / loop
SLR-24H
SLR-24V
SLR-835 HD-3 14 / loop
SLR-835H HD-5
System Sensor 1400 A N/A 16 / loop
1451 (B401B) A N/A 16 / loop
2100 A N/A 20 / loop
2100T A N/A 20 / loop
2151 (B401) A N/A 16 / loop
2151T (B401) A N/A 16 / loop
2400 A N/A 16 / loop
2400TH A N/A 16 / loop
2451 (B401B) A N/A 16 / loop
2451TH (B401B) A N/A 16 / loop
2W-B A N/A 20 / loop
2WT-B A N/A 20 / loop
2WTA-B A N/A 20 / loop
2WTR-B A N/A 20 / loop
Table 16: Compatible Two-Wire Smoke Detectors