Davis Instruments 8221 User Manual

Welcome to CarChip 

85 

The following specifications pertain to the CarChip (# 8211) and CarChip E/X (# 8221) CarChip E/X with 
Alarm (# 8225), CarChip Fleet (# 8241)and CarChip Fleet with Alarm (# 8245) models of the CarChip. 
See 

CarChip Pro Specifications

 for specifications on the CarChip Pro (# 8226) and CarChip Fleet Pro (# 

8246) models of CarChip. 

General 

Operating Temperature 

-40° to +185°F  (-40° to +85°C) 

Primary Power, Connected to Vehicle 

12 VDC  

Primary Power, Connected to 
Computer 

USB powered 

Backup Power 

Internal battery, 10-15 year life in normal use 

Memory 

128KB for CarChip, 512KB for CarChip E/X 

Memory Storage 

75 hours for CarChip, 300 hours for CarChipE/X) 

Time & Date 

Accurate to +/- 2 seconds per day 

Vehicle Interface 

16-pin OBDII connector 

Computer Interface 

USB 

Computer Cable Length 

5' (1.5 m) 

Indicator Lamp 

LED, pulses to indicate unit status 

Dimensions 

1.8" wide  x  1 " tall x  1.25" deep" (46 mm x 25.4 mm x 32 
mm) 

Weight 

0.9 oz. (2.55g) 

OBDII Compatibility 

Supported Protocols  

J1850-41.6, J1850-10.4, ISO9141, KWP2000 (ISO 14230), 
CAN (Control Area Network ISO 11898) 

CarChip Compatible Vehicles: 

 

US-Market  

Most domestic and import vehicles, 1996 or later. 

European-Market  

Some 1996 and later vehicles and most 2000 and later 
vehicles compliant with the supported protocols listed above. 

Elsewhere  

Undetermined. Some 1996 and later vehicles that are 
compliant with the supported protocols may be CarChip 
Compatible.