that shows the charging status and a red light that communicates any problems during charging. If you
see a red light, see Troubleshooting, page 34. The charger needs one AAA alkaline battery.
Note: If the battery is installed incorrectly or is low, the charger will not work. Repeat the battery
installation steps using a new battery.
Installing a battery in the charger
To install a battery in the charger:
1. Push the battery cover in and slide it off (as shown in the image in step 3).
2. Insert a new AAA alkaline battery. Make sure the + and - symbols on the battery align with these
same symbols shown on the charger.
3. Slide the cover back on the charger until it clicks into place.
Charging the transmitter
CAUTION: Always charge the transmitter before inserting your sensor. A depleted
transmitter does not function. A fully charged transmitter works at least seven days without
recharging. A depleted transmitter can take up to two hours to recharge.
CAUTION: Do not store the transmitter on the charger for more than 60 days. Disconnect and
reconnect to the charger to re-charge again before use. If the transmitter is left on the charger
for more than 60 days, the transmitter battery will be permanently damaged.
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